<![CDATA[NBC 10 Philadelphia - Philadelphia Weather News and Coverage]]>Copyright 2016http://www.nbcphiladelphia.com/weather/stories http://media.nbcnewyork.com/designimages/NBC10_40x125.png NBC 10 Philadelphia http://www.nbcphiladelphia.comen-usMon, 29 Aug 2016 18:12:19 -0400Mon, 29 Aug 2016 18:12:19 -0400NBC Owned Television Stations <![CDATA[Today's Forecast]]> Mon, 29 Aug 2016 07:40:53 -0400 http://media.nbcphiladelphia.com/images/185*120/Glenn_schwartz_sheena_parveen_1.jpg

Hazy and hot today, but not as humid this afternoon and evening as light northwesterly winds will deliver drier air.

A cold front will give us a chance of showers and thunderstorms later Wednesday and Thursday, followed by cooler and much more comfortable weather for Friday and the weekend. 

Today: Hazy sunshine and hot. High 91

Tue: Sunny and warm. High 88

Wed: Partly cloudy. Chance of late evening showers. High 89

Thu: Chance of Showers and thunderstorms. High 87

Fri: Sunny, nice and comfortable. High 81

Sat: Sunny, low humidity. High of 83

Sun: Sunny, low humidity. High of 85


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<![CDATA[StormRanger10: Delivering You Accurate Weather Forecasts]]> Tue, 02 Aug 2016 09:11:36 -0400 http://media.nbcphiladelphia.com/images/213*120/stormrangerrain.jpg

NBC10’s exclusive StormRanger10 mobile radar truck is a one-of-a-kind vehicle that has a live, high-powered Doppler Radar that enables StormRanger10 to get out ahead of a storm. StormRanger10 can track storms wherever they are with a higher degree of accuracy and with more detail than ever before.

From increased visibility in the heart of a storm to the ability to alert people in real time that a tornado has touched down because it can detect actual debris on the ground, StormRanger10 is the latest addition to NBC10’s expanding weather arsenal designed to keep you and your family safe when severe weather strikes.

"This radar technology and mobile configuration is a first for any TV station or network of stations in the U.S," said Richard Stedronsky, a meteorologist and director of strategic business development and partnerships at Enterprise Electronics Corporation. "NBC-Telemundo is the first to deploy this fleet of mobile doppler radars in the nation."

"We are boosting our weather forecasting capabilities by building, from scratch, the first-of-its-kind fleet of mobile weather radars in the country because we know how important weather is to our viewers," said Valari Staab, President, NBCUniversal Owned Television Stations. "All of our stations will have access to this groundbreaking weather technology so they can deliver even more lifesaving weather information to their communities."

Glenn's Blog: Why StormRanger10 is so important »

So what makes StormRanger10 so unique in delivering you the most accurate forecast?

When severe weather approaches, NBC10 now has the ability to dispatch StormRanger10 to wherever the storm is going to strike. Using X-band, dual-polarization Doppler radar, StormRanger10 can provide our meteorologists with more detailed observations than any normal fixed radar can provide, giving them — and you — a hyperlocal look at the storm.

See StormRanger10 radar in action here »

"When you start to get over 100 miles away from the radar, the radar beam from a fixed radar is too high in the atmosphere to see lower weather phenomena,” said Stedronsky, whose company provides the new radar system in StormRanger10. "But that’s where severe weather takes place -- in the lowest parts of the atmosphere. With StormRanger, you can take your viewers to the weather and gather information that a traditional fixed radar could be missing.”

StormRanger10's radar, which has a maximum range of about 100 miles, will update about once every 60 seconds. These updates mean you'll be up-to-the-minute when tracking how and when the weather will impact you in your crucial locations such as your home and where you currently are. Our app users will receive push alerts when StormRanger10 is activated, allowing them to get a closer -- and more accurate -- look at the weather in their neighborhoods.

By driving StormRanger10 close to actual storms, NBC10 will be able to give a detailed look that TV stations never have been able to do before. Fixed radars may miss certain weather events due to terrain or blockages due to buildings in a downtown area. But StormRanger10 can fill in those gaps in coverage, and in turn provide a more complete picture of what is happening now and what those immediately in the crosshairs of a severe storm can expect.

Mobility is StormRanger10’s big advantage over fixed radar during severe thunderstorms. By positioning StormRanger10 wherever severe storms are about to strike, meteorologists will get a better idea of how the storms are forming, how severe they are and where and how fast they’re moving.

"This advanced look that you’ll get from a StormRanger means you’re giving more accurate and timely information to a viewer,” Stedronsky said.

Get accurate 10-day and hourly forecasts here »

In addition to radar, StormRanger10 has two cameras to give you an up-close look at conditions - one on the dashboard, and one pointed at a reporter riding in the vehicle.

“The information you're going to get on a local level is going to be unprecedented,” said Tom Jennings, president of Accelerated Media Technologies, which did the customization required to integrate the radar system into StormRanger10. “You’re going to get such high-resolution weather telemetry out of these trucks that you’ll know exactly what the weather’s doing in your neighborhood, not just theoretically what it’s doing across your state or county."

See how you can view StormRanger10 online »

Stedronsky says the key to it all is having full control of a mobile radar unit that can be sent to any storm, at any time.

“That’s going to be huge for protecting people and assets and saving lives,” Stedronsky said.

NBC10 is committed to bringing you the most accurate weather information possible, and StormRanger10 is just the latest investment we’re making into weather-related technologies to do just that. StormRanger10 is here to serve your community, and ensure that NBC10 First Alert Weather is your most-trusted source when severe storms strike.


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<![CDATA[Total Solar Eclipse in 2017]]> Thu, 25 Aug 2016 07:02:31 -0400 http://media.nbcphiladelphia.com/images/212*120/total+eclipse.jpg

North America will see its first total eclipse since 1979 in a year, and some people are planning ahead by booking hotel rooms.

A solar eclipse occurs when the moon crosses between the earth and the sun, which is blocked out. The moon and the Earth will be perfectly aligned for a few minutes on Aug. 21, 2017. 

But viewers in the tri-state area will have to settle for a partial eclipse. The prime viewing spots in the eastern United States include most of South Carolina, central Tennessee and a sliver of Georgia.

Self-described eclipse chaser Mike Kentrianakis told KPCC, a public radio station in California, that the best viewing spots for the total eclipse will be within a 70-mile wide path that stretches from the Pacific Northwest to South Carolina. 

"Oh, it's bigger than the Super Bowl, much bigger," said Kentrianakis

The next total solar eclipse after the 2017 alignment will happen in 2024.

Read more at KPCC.



Photo Credit: AP/File]]>
<![CDATA[DOWNLOAD the NBC10 App for Latest Weather]]> Mon, 08 Feb 2016 22:30:50 -0400 http://media.nbcphiladelphia.com/images/215*120/Follow+Storm+on+NBC10+App.JPG
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Photo Credit: NBC10]]>
<![CDATA[Is Climate Change Responsible for Extreme Weather Events?]]> Tue, 23 Aug 2016 18:45:57 -0400 http://media.nbcphiladelphia.com/images/213*120/Storm+clouds-566267213.jpg

THIS IS WHERE THE “REAL” DEBATE IS

Ask just about any climate scientist and they’ll tell you that the climate is warming, and most of that warming is due to human activity. Period. But ask if a record flood, or hurricane, or blizzard, or wildfire, or drought has been made worse due to climate change (or global warming, depending on which term you choose). You’ll probably get a lot of different answers. THIS is where debate among climate scientists is REAL.

It’s called “Attribution Science," and it is a rather recent development. For decades, climate scientists and meteorologists kept quoting the same line after each weather disaster: “No single extreme event can be blamed on global warming” (or something close to that). It quickly closed any debate environmental activists tried to start. It was easy. But it’s not easy anymore.

Computer models of future climate have long shown that the future will include:

*more (and worse) heat waves

*more (and worse) droughts

*more (and worse) floods

*more (and worse) wildfires

But the question always was: “How far in the future do we expect this increase to start? “ Many of us talked about how all these above things would happen in decades to come. But a series of incredible record events got some thinking differently. Had the expected future changes already started?

THE BLIZZARD OF ’96: THE TALK BEGINS

I remember questions about the possible effect of global warming on the Blizzard of ’96 in Philadelphia, when we broke our all-time snowstorm record by an amazing amount. The old record: 21.3”. The new record: 30.7”. How can a place with detailed records going back 120+ years break a record by so much? There were a lot of articles about the possible connection, even in our local papers:

http://articles.philly.com/1996-01-19/news/25653806_1_discernible-human-influence-influence-on-global-climate-greenhouse-warming

http://www.nytimes.com/1996/01/14/weekinreview/ideas-trends-blame-global-warming-for-the-blizzard.html

http://www.newsweek.com/global-warming-176896

….and many more….

But most scientists (including me) repeated the established line: “No single storm can be blamed on global warming.” We even did an in-depth special report on the possible connection. I got the chance to interview the late Dr. Jerry Mahlman, Director of the GFDL, a top government research organization. Even though he said, “The debate is over,” when it came to whether global warming was real (1996!), he scoffed at the idea that the blizzard was caused (or even significantly aided) by global warming.

MORE STORMS, MORE RECORDS, MORE MINDS CHANGED

As the 90s came to a close and the new century began, we started noticing more and more extreme weather-from heat waves and drought to record snowstorms-and incredible floods. With each event, our “defenses” got a bit lower.

All of the below happened in the U.S. There were obviously many others in different parts of the world (info from NCDC-National Climatic Data Center):

1998: severe drought/heat wave- kills 200

1999: severely dry and hot-kills 500

2000: drought/heat wave-kills 140

2001: remnants of Tropical Storm produce 30-40 inches of rain

$11 billion damage-kills 43

2003: record 1-week total 400 tornadoes-kills 51

2004: series of hurricane strikes in Florida-kills more than 150

More than $70 Billion damage

2005: Katrina-kills 1800+. Damage $154 billion

2006: numerous wildfires-kills 28. Record area burned

2008: 2 separate tornado outbreaks-kills 70. Total 320+ tornadoes

2008: massive flooding in Midwest-kills 24. Damage $11 billion

2008: Hurricane Ike (largest on record)-kills 112. Damage $33 billion

2011: Blizzard Midwest to Northeast-kills 36

2011: 4 massive tornado outbreaks-kills 545. Total 746 tornadoes

2011: Drought/heat wave-kills 95. Damage $13 billion

2012: 6 separate outbreaks with 20+ tornadoes-Damage $17 billion

2012: Superstorm Sandy-kills 159. Damage $68 billion

2012: Drought/heat wave-kills 123. Damage $31 billion

2013: Drought/heat wave-kills 53. Damage $11 billion

This was a 15 year period that started getting more and more meteorologists and climate scientists wondering more and more about whether we can ATTRIBUTE at least some of those events to the changing climate.

We started hearing experts saying that “the dice are loaded” toward more extreme events, and that “it’s the atmosphere on steroids." And those who didn’t agree with those statements had to say it over and over. Every time a major disaster occurred, the debate rose up again.

ATTRIBUTION SCIENCE

But most of us needed something more than suspicions. We needed to see a concrete, specific reason for the extremes. What is the cause and effect relationship?

One of the first widely publicized studies was from Dr. Jennifer Francis of Rutgers. As you saw above, the year 2012 had numerous extreme events, and that was the year her research became known:

Her theory was that the rapid ice melt in the Arctic was causing:

1. Warming in the Arctic (more of the sun’s rays get absorbed in water than over ice)

2. This leads to less of a temperature contrast from the Arctic to the mid-latitudes and tropics

3. Since jet streams are related to temperature differences, they become “wavier," instead of more west to east

4. This leads to more cut-off LOWS in the upper atmosphere

5. Which leads to more intense and slow-moving storms

http://e360.yale.edu/feature/linking_weird_weather_to_rapid_warming_of_the_arctic/2501/

That seemed like a reasonable cause and effect, and later papers expanded on that theory. It even helped explain the unprecedented sharp left turn that Sandy took. Since her papers came out right around that time, they gained even more publicity. And, in time, other climate scientists either agreed with the theory or did their own research that agreed with it.

That seemed like a reasonable cause and effect, and later papers expanded on that theory. It even helped explain the unprecedented sharp left turn that Sandy took. Since her papers came out right around that time, they gained even more publicity. And, in time, other climate scientists either agreed with the theory or did their own research that agreed with it.

MORE RECORD FLOODS, HEAT, WILDFIRES, TYPHOONS, ETC.

So now, every record-smashing event seems to be tied to climate change. Just recently, the devastating floods in Ellicott City, MD and Louisiana have been added to the list. And, at the same time, major wildfires were hitting California-again.

IT’S NOT THAT SIMPLE

Yes, it would be easy to say that every record event in weather has been created, or made worse, by climate change. But we’ve seen extreme weather and record weather ever since the beginning of time. Weather is naturally variable, so how can we tell that any single one has an “unnatural” aid? Attribution Science is trying to answer those questions.

Below is one such attempt-from the National Academy of Sciences. Some types of extreme events have more obvious ties to climate change than others. Note how both extreme heat and extreme cold are at the top of the list.

 

SO, WHAT WAS THE CLIMATE CHANGE IMPACT ON LOUISIANA FLOOD?

It will take months of research for respected scientific papers to come out and see how much of a tie there is to climate change. Attempts are being made for those attribution studies to come faster than they used to.

Was there more moisture in the atmosphere because of the increase in water vapor due to climate change? Yes. But was it enough to say that there wouldn’t have been devastating flooding without climate change? The added moisture probably made it worse, but was it 2% worse, 20% worse, or more? The science is still too primitive to say with confidence.

Below are a few articles related to this subject, if you’re interested in more detail.

http://dels.nas.edu/resources/static-assets/materials-based-on-reports/reports-in-brief/Attribution-Extreme-Weather-Brief-Final.pdf

http://www.nytimes.com/2016/08/17/us/climate-change-louisiana.html?smid=tw-nytimesscience&smtyp=cur&_r=1

https://www.washingtonpost.com/news/energy-environment/wp/2016/08/15/what-we-can-say-about-the-louisiana-floods-and-climate-change/?postshare=7811471294385986&tid=ss_tw&utm_term=.f1f8323cc0d3

These extremes of the past 15-20 years have me wondering if 15-20 years from now, scientists will be wondering how we missed such obvious changes in our climate. By then, the extremes of today may seem modest by comparison.

Glenn “Hurricane” Schwartz,

Chief Meteorologist, NBC10 Philadelphia



Photo Credit: Getty Images/EyeEm
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<![CDATA[Rip Current Rescues Along Jersey Sh]]> Tue, 23 Aug 2016 06:53:28 -0400 http://media.nbcphiladelphia.com/images/213*120/rip+current+rescues.jpg More than dozen people had to pulled from the water on the Jersey Shore from Deal to Atlantic City. Brian Thompson reports.]]> <![CDATA[The Shore is the Place to Be]]> Fri, 19 Aug 2016 19:54:24 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016751018_1200x675_747507267736.jpg With Labor Day Weekend in the near future, along with the end of summer, Jersey beaches aren't clearing up at all. NBC10's Cydney Long caught up with some beach-goers to see how they were spending the final weeks of summer.]]> <![CDATA[Beautiful Late Summer Day in Philly, N.J.]]> Fri, 19 Aug 2016 07:29:19 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016742801_1200x675_747181635619.jpg Temperatures in the high 80s will accompany sunny skies and relatively low humidity on Friday heading into the weekend.]]> <![CDATA[Glenn's Blog: 'Chemtrail' Conspiracy Crushed]]> Thu, 18 Aug 2016 13:46:50 -0400 http://media.nbcphiladelphia.com/images/213*120/Chemtrails-picture-for-Glen.jpg

"HAVE YOU HEARD WHAT THE GOVERNMENT IS DOING?"

This would be a really funny story if so many people didn’t take this stuff seriously. But they do. In fact, atmospheric scientists have gotten so many e-mails, tweets and Facebook posts that drastic measures had to be taken. Now there’s actually been a published scientific study where actual scientists have spent (*wasted*) a lot of time debunking a long-lived conspiracy theory. Of course, it’s the government’s fault (*not really*).

(I have had to resort to explaining any sarcasm clearly, so no one will mis-interpret my statements. So, I use a (*____*) to show my real opinion.

THE CHEMTRAIL CONSPIRACY THEORY

You won’t believe this one! It seems the government has been secretly releasing dangerous chemicals into the upper atmosphere for about 20 years! (*not*). Depending on who is doing the writing, these "chemtrails" (*not even a real word*) involve:

  • Population control
  • Biological warfare
  • Chemical warfare
  • Psychological manipulation
  • Weather modification (combat global warming)

I have read and heard many people say that the U.S. Government has a program to actually poison its population. And this has already affected people’s health (*you must be kidding!*). Before you think that this mindset is rare, the new study quoted by the Washington Post says: "In a 2011 international survey, nearly 17% of respondents said they believed the existence of a secret large-scale atmospheric spraying program (SLAP) to be true or partly true." That’s even more than the percentage of people who believe the moon landing was fake (*another whopper*).

[[379267041,C]]

Some celebrities have been quoted about their belief in "chemtrails," including Prince, Vin Diesel, Chuck Norris, Merle Haggard, and Kylie Jenner (of course, if Vin Diesel or Chuck Norris wanted to argue that to my face, with a fist raised, I may be more inclined to agree with them).

It all starts with the real thing: CONTRAILS from jet aircraft. These CONdensation TRAILS form when water vapor from the exhaust condenses into narrow clouds as the plane races across the sky. We see them regularly...

Let a real Professor of Atmospheric Sciences explain in this blog about "chemtrails" versus "contrails."

SO THEY HAD TO DO A (PUBLISHED) STUDY

Hearing from individual professors or meteorologists hasn’t managed to calm down the fears of the 17%. The new study, from scientists at Stanford and the University of California, Irvine wanted "to establish a source of objective science that can inform public discourse." It was published in the past week by the prestigious Environmental Research Letters.

They surveyed 220 contrail experts and 255 atmospheric deposition experts (the type of scientists who should know better), A total of 77 responded (*the rest probably thought it was some sort of prank*).

The scientists were asked if they ever came across evidence "that you think indicates the existence of a secret large-scale atmospheric spraying program?." The result: 76 of the 77 simply answered "no." What about the 77th one? "...said the evidence was "high levels of atmospheric barium in a remote area with standard 'low' soil barium." Sounds ominous (*not*).

[[382775841,C]]

The study went into great detail, showing multiple "suspicious" photos. The scientists explained, for example, why these trails behind aircraft appear to be lasting longer than they used to (a major point from the conspiracy believers). Planes are flying higher, have larger engines that produce more water vapor, higher water vapor content of the atmosphere due to climate change, and increased fuel efficiency.

Doesn’t that sound more reasonable than the government trying to poison us?

AND ANOTHER THING

If anyone wanted to spray stuff in the atmosphere to affect us at the ground, they wouldn’t do it at the level jets fly. Anything up there just disburses into the atmosphere. They would spray close to the ground, like crop dusters.

HOW DID THIS ALL START?

I have wondered for years how this interesting (*crazy*) theory got started. The answer is really interesting (*really*). This goes back to 1996, when the Air Force published a paper, "Weather as a Force Multiplier." It was a theoretical look about how weather could be modified for combat. You can read it here.

And then it spread…and spread…and spread. I guess they didn’t read the "this report contains fictional representations of future situations/scenarios" part.

AND THEN THERE’S HAARP

HAARP is a real research program, started in 1990 (and recently cancelled). "Chemtrail" people sometimes say the "chemtrails" are from the HAARP program. And get a load of some of the things HAARP has been blamed for:

  • Floods
  • Droughts
  • Hurricanes
  • Earthquakes
  • Gulf War Syndrome
  • Chronic Fatigue Syndrome

….and the downing of TWA Flight 800 (according to Wikipedia –- I can only take so much reading of the conspiracy sites).

[[388967002,C]]

The scientific study of "chemtrails" did not mention HAARP. Sounds like a reason for yet another interesting (*unnecessary*) study.

In the meantime, there are so many real problems in the world. I suggest focusing on one of them, instead of spending (*wasting*) your time worrying about ridiculous conspiracy theories that pose little (*no*) logic.

Glenn "Hurricane" Schwartz
Chief Meteorologist, NBC10 Philadelphia



Photo Credit: Getty Images]]>
<![CDATA[The Heat and Your Allergies]]> Tue, 16 Aug 2016 20:08:17 -0400 http://media.nbcphiladelphia.com/images/213*120/Allergies+and+the+Heat+-+17205903_20547490.jpg Those with allergies can suffer even more during heatwaves thanks to the high humidity. NBC10 First Alert Weather meteorologist Krystal Klei talks to a local doctor.

Photo Credit: NBC10]]>
<![CDATA[Glenn's Blog: Even the Ocean Is Hot!]]> Mon, 15 Aug 2016 17:20:22 -0400 http://media.nbcphiladelphia.com/images/213*120/jersey+shore+generic+playing+beach.jpg

RECORD SET LAST WEEK

Since the ocean warms more slowly than the land, the highest water temperatures occur, on average, in late August. Last Wednesday, the Atlantic City ocean temperature reached 83.3 degrees for a short time -- a record. The man with the data is Jim Eberwine, a meteorologist formerly with the National Weather Service. He’s kept detailed air and water temperatures for the Jersey Shore for decades.

Here is Jim’s chart for water temperatures in various parts of New Jersey and Delaware/NJ:

AND THEN THE DROP…

Last Wednesday was the first day in our most extreme heat wave of the year. By the weekend, air temperatures reached well into the 90s, and the humidity jumped to its’ highest level of the summer so far. Yet the ocean temperature plunged. It fell from that 83.3 Wednesday to 64 Sunday. I warned viewers about the coming drop Wednesday. So, why did it happen, and how did I know that it would drop so much?

It’s called "upwelling”, and it happens occasionally in summer under certain conditions. At the Jersey Shore, it involves a persistent wind from the Southwest. While that wind direction heats up inland areas, it is parallel to the shore. That causes the warm surface water to get pushed out to sea. And to replace it, colder water from below moves up to the surface. Here’s a graphic and explanation from NOAA.

I’ve seen ocean temperatures drop into the 50s in the middle of summer on some of the hottest afternoons on land. It happens every year, and there’s nothing unusual about it.

WILL THE WATER GET WARM AGAIN?

In a word: yes. A persistent wind from the East or Southeast will allow some of that warmer water to return. But it may not get back to the record 83.3 degrees, or maybe not even 80. That’s a temperature uncommon for the Jersey Shore, but a bit more common for the Delaware beaches.

Glenn "Hurricane" Schwartz
Chief Meteorologist, NBC10 Philadelphia



Photo Credit: Getty Images
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<![CDATA[Ways to Beat the Heat]]> Thu, 14 Jul 2016 11:23:32 -0400 http://media.nbcphiladelphia.com/images/213*120/dfw-generic-swimming-03.jpg We're enduring the 5th heat wave of the summer and it could also be the longest. When the temperature is on the wrong side of 90, oppressive heat can put a ding in your plans. But no worries, there are plenty of other activities to help you escape the heat.

Photo Credit: Getty Images]]>
<![CDATA[The Heat is On...and On...and On ]]> Mon, 15 Aug 2016 10:30:16 -0400 http://media.nbcphiladelphia.com/images/213*120/Heat-Generic-Photo.jpg

SUMMER DIDN’T START VERY HOT, BUT….
By the 4th of July, summer 2016 hadn’t been very hot. The hottest day of the entire summer up to that point was a mere 92 degrees. And it wasn’t even humid. There wasn’t a single heat wave in June. The single heat wave in May was the absolute minimum: 3 straight days of exactly 90 degrees. And the warmest night up to July 4th got down to 72 degrees-an indication of just how NOT humid it had been.

Then came July 6th. More than half the days since then have been 90 degrees or above in Philadelphia! We’ve had four heat waves since then, and the humidity seems that it’s gotten higher in each one. The current heat wave, although the temperature hasn’t gotten above 98, has become deadly. And there’s more of the heat wave to come.

THE HEAT INDEX (OR “FEELS LIKE” TEMPERATURE)
We’ve all heard “It’s not the heat-it’s the humidity”. But that’s not true. It is clearly both. And there is a single number that measures the impact. Believe it or not, it was first developed by a TV meteorologist (George Winterling in 1978), who called it "humiture." I actually prefer that term, since it perfectly combines humidity and temperature. Pretty clever, George.

The National Weather Service picked up the good idea and called it the Heat Index. Some refer to it as the “Feels-like Temperature”, which can also be used in winter instead of the Wind Chill. Viewers sometimes ask me for the “formula” for calculating these terms. I always tell them: “You really don’t want to know”, and show the formula that proves it:
   HI = -42.379 + 2.04901523T + 10.14333127R - 0.22475541TR - 6.83783x10-3T2- 5.481717x10-2R2 + 1.22874x10-3T2R + 8.5282x10-4TR2 - 1.99x10-6T2R2

See, you really don’t want to know. Fortunately, quick calculations can be made using sites like this or you can look at a simple table once you know the temperature and relative humidity:

[[390147922, C]]

Anything in the orange area is considered the “danger zone” (about 105 or higher). That’s when we see reports of heat exhaustion or heat stroke. I’ve seen Heat Index readings as high as 122 in our area. The highest I’ve ever heard about was an amazing 172 degrees F in Dhahran, Saudi Arabia.

Heat can be a killer. In July 1993, 118 people died from heat-related causes in Philadelphia. That’s the highest death toll from any weather event in our recorded history. So we take extreme heat seriously.

HOW HOT DID IT GET
On Saturday, the 13th, the heat index got up to about 112 in Philadelphia. The highest reading in our area was 122 degrees in Dover, DE. But the dewpoint reading there has seemed to be too high compared to nearby sites, so that may be a bit of a stretch.

Other top Heat Index readings were:
    113 in Millville, NJ
    112 at Atlantic City Airport
    110 in Wilmington, DE
    109 in Trenton, NJ
    108 in Allentown, PA
    107 in Reading, PA

HOW MUCH MORE OF THIS IS COMING?
We’re predicting highs of 95 both Monday and Tuesday. The dewpoints and relative humidity (either can be used for the calculations) won’t be quite as high as they were Saturday, so the Heat Index will be up to about 103. The problem is that the accumulation of heat is a key factor in heat-related deaths. Those brick row houses in parts of Philadelphia act like ovens without air conditioning. Fans just blow the heat around. Some people have air conditioning, but don’t turn it on because they feel they can’t afford it. When you combine that with elderly people with existing heart problems, the threat goes up even more.

Because of the above reasons, we ask that you check on the elderly during the rest of this heat wave, especially if they don’t use air conditioning. And make sure they get a break in a cool area-and with plenty of water. Of course, don’t forget about pets-they are wearing fur coats, and don’t have the luxury of turning on the AC themselves. And, of course, never leave a child in a hot car. Temperatures climb rapidly in an enclosed car on a sunny day.

After Tuesday, temperatures should drop off a bit (closer to 90 than 95), and the humidity will drop a bit. By next weekend, we could actually have highs in the 80s.

This has not been the hottest summer on record. The official temperature still hasn’t reached 100. There’s still plenty of summer to go. So far, we’ve had 30 days reaching 90+. The average for the whole summer is only 21.


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<![CDATA[Ominous Clouds Form as Storms Move Through Region ]]> Sat, 13 Aug 2016 21:19:38 -0400 http://media.nbcphiladelphia.com/images/213*120/Storm-Clouds-Over-Musikfest.jpg

Storms moved through parts of the area Saturday night. A Severe Thunderstorm Warning was in effect for Montgomery, Lehigh, Berks, Hunterdon and Northampton counties until 9 p.m. Check out these photos and videos of the storm.

[[390097942, C]]

[[390099232, C]]



Photo Credit: Joe Lazorik
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<![CDATA[Storms Move Through Montco and Lehigh Valley ]]> Sat, 13 Aug 2016 21:50:36 -0400 http://media.nbcphiladelphia.com/images/213*120/Storms-Roll-In.jpg Storms moved through Montgomery County and the Lehigh Valley Saturday night. Check out these viewer photos.

Photo Credit: @okpychg ]]>
<![CDATA[Dangerous Heat Kills 2 Women in Philadelphia]]> Sun, 14 Aug 2016 09:04:25 -0400 http://media.nbcphiladelphia.com/images/213*120/Heat_Generic_Sun_Generic.jpg

Officials have confirmed two heat-related deaths in Philadelphia Saturday. A 67-year-old woman from Port Richmond who had diabetes died from congestive heart failure while an 82-year-old woman from North Philadelphia suffering from heart disease died from hypercholesterolemia, officials said. Officials say both deaths were related to the current excessive heat in Philadelphia.

The heat wave for the Philadelphia region began Wednesday and continued through Saturday with temperatures in the 90s and a heat index in the 100s.

[[390107611, C]]

The two incidents bring the total of heat-related deaths in Philadelphia to six for the entire calendar year.

The Philadelphia Corporation for Aging (PCA) Heatline is operating until midnight Saturday and from 8:30 a.m. to 9 p.m. Sunday. You can call the PCA Heatline at 215-765-9040.

CLICK HERE for tips on staying safe during the excessive heat.



Photo Credit: NBC10 Philadelphia]]>
<![CDATA[Dealing With Heat on the Schuylkill River]]> Sat, 13 Aug 2016 12:43:42 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016675053_1200x675_743822403630.jpg Heat and humidity made things difficult along Kelly Drive Saturday morning and made things difficult for rowers participating in a regatta for athletes with disabilities on the Schuylkill River.]]> <![CDATA[How Are Delaware Residents Cooling Off?]]> Fri, 12 Aug 2016 21:41:46 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016669460_1200x675_743539267758.jpg Delaware residents are doing just about everything they can to cool off during the scorching temperatures the region has endured. NBC10's Tim Furlong sees what they're doing to keep cool.]]> <![CDATA[Pools Staying Open, Reducing Prices During Heatwave]]> Fri, 12 Aug 2016 21:40:52 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016669024_1200x675_743517251675.jpg Local pools are staying open longer than expected because of the heat wave, and some are even reducing prices.]]> <![CDATA[Forecast: Hottest Days Still to Come]]> Sat, 13 Aug 2016 01:25:06 -0400 http://media.nbcphiladelphia.com/images/213*120/WARMING+TREND.png

We're into our fifth heatwave of the season and the hottest days are still to come.

We hit 97 degrees in Philadelphia on Friday, but that felt like 108 degrees. It was even worse in Dover, where the heat index flirted with 120 degrees.

Saturday will be a degree or two hotter, with a similar set up for afternoon storms. They will be isolated, and mainly confined to the Pennsylvania Suburbs and Lehigh Valley.

This weekend will be fairly stormy for the Poconos, so that may not be the best place to head to to duck out on the heat. Make sure you're weather aware, as the middle of a lake is the last place you want to be when a thunderstorm is approaching.

[[390044811, C]]

We will cool off by a degree or two for Sunday, but it will be just as sticky. Don't plan on any physical outdoor activities. Even at the coldest point in the day, just before sunrise, the temperature will be about 81 degrees in Philadelphia, which is about 4 degrees shy of the normal daytime high.

We're back into the low 90s for Monday and finally into the 80s by Wednesday. The humidity sticks around, however.

We've got a thunderstorm chance pretty much every day next week.

[[390044871, C]]



Photo Credit: NBC10
This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
<![CDATA[StormRanger10 at the Linc]]> Thu, 11 Aug 2016 20:06:57 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016656524_1200x675_742804547976.jpg NBC10 Meteorologist Krystal Klei is live with StormRanger10 at Lincoln Financial Field where it will be a hot start to Eagles Preseason.]]> <![CDATA[Reflecting on the Life of Most Enthusiastic Meteorologist]]> Thu, 11 Aug 2016 00:28:32 -0400 http://media.nbcphiladelphia.com/images/213*120/Gil+Clark.jpeg

MORE ENERGY IN HIS 80s THAN OTHERS IN THEIR 20s

His name was Gilbert (Gil) Clark, and he passed away Monday at the age of 93. I had the good fortune of working with Gil while working at The National Hurricane Center decades ago. He was simply unforgettable.

Gil had the enthusiasm of a young weather fanatic, even in his senior citizen days. I hadn’t seen him in the past decade, but know that he would return to NHC years after his retirement in 1989 to watch his successors track the latest hurricane. They would practically try to push him out of the way to get to their maps. Gil was originally from Texas, and he never lost the accent. It was the type of “cackle” that you could hear from down the hallway.

The article on him from the Hurricane Research Division is here.

The article from NHC is here.

THE MAN WHO NAMED THE STORMS

Gil’s full contribution may never be officially recognized. That’s because he did something contrary to claims from NHC. It’s always been said that hurricanes are not named for specific people. But I was there, and Gil told me the story himself.

His boss, Robert Simpson, at the end of the 1960s, asked Gil to come up with a list of ALL hurricanes for the 70s. That was quite a task. It’s hard enough to decide on your baby’s name. How about 20+ names for 10 years! And the names couldn’t be too wild, or have some nasty meaning when translated into Spanish (lots of countries in the Tropics speak Spanish). 

So, how did he do it? He indeed went to baby naming books to find some of the names. But he also used the names of some of his relatives, former girlfriends, favorite movie stars, and even secretaries at NHC. For example, I remember him saying that Anita was named for the sexy actress Anita Ekberg. Other likely “Gil-names” are:

          Greta (Garbo)

          Ginger (Rogers)

          Betty (Grable)

          Doris (Day)

          Fay (Wray)

          Gloria (Swanson)

          Debra (Kerr)

(In case some of those names aren’t familiar to those younger than 60, look them up. They were all big stars from Gil’s younger days)

There were probably more, but this is only from the list of storms that actually formed, not the entire list of proposed names.

GILBERT: THE ULTIMATE IRONY

“The man who named the storms” eventually had one named after himself, although (as far as I know) he had nothing to do with it. Gilbert, in 1988, turned out to be the most intense hurricane ever recorded in the Caribbean. And it happened just a year before Gil retired. I had assumed that he was at work as Gilbert evolved and intensified, and could just picture his expression with each drop in pressure. Unfortunately, it turned out that he was on sick leave at the time.

Gil was one-of-a-kind. He showed the joy of a child, always amazed at the magnificence of nature. He was an inspiration to me, and probably many others, that you can love what you do even late in life. It’s an incredible blessing to have that joy last forever.



Photo Credit: Courtesy of NOAA, Taken by Bob Burpee]]>
<![CDATA[Fifth Heat Wave of Summer Coming Our Way]]> Wed, 10 Aug 2016 13:58:23 -0400 http://media.nbcphiladelphia.com/images/213*120/Temps+compare1.png

HERE WE GO AGAIN

We’ve already had four heat waves in Philadelphia this summer season (1 in May, 3 in July), combining for 25 days with 90+ degree temperatures. In short: a pretty hot summer. Now, another heat wave is about to start.

We’re not the only place about to get some excessive heat. Here’s the map of temperatures compared to normal for late Thursday and then late Saturday:

The darker the reddish color, the hotter it’s going to be than “normal.”

Here are our predictions for high temperature/highest heat index:

THUNDERSTORMS, TOO?

Moisture from the Gulf of Mexico, combined with Atlantic moisture will lead to a LOT of rain over parts of the Eastern half of the country. Unfortunately, the prime rain areas won’t be moving a lot. So that adds up to some flood threats-especially near the Gulf Coast, and a zone from Southern Indiana to Northern PA.

The way the pattern is setting up, there should be a lot more rain in the Lehigh Valley, Berks County, and the Poconos than in the Philadelphia area. And there should be even less south of Philadelphia, in southern Delaware and the Jersey Shore. In fact, when you combine the heat relief with ocean breezes PLUS more sunshine, the shore will be a great place to be during this heat wave. And, as an added bonus, the ocean temperature is near 80 degrees, which is about as warm as it gets around here. That’s about 8 degrees warmer than the average ocean temperature in August.


This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
<![CDATA[Tracy and Glenn Check Out StormRanger10]]> Fri, 05 Aug 2016 11:41:57 -0400 http://media.nbcphiladelphia.com/images/216*120/tracy+stormranger10.JPG Stormranger10 is almost here, meteorologist Glenn "Hurricane" Schwartz and reporter Tracy Davidson are here with the details.]]> <![CDATA[StormRanger10: A Radar & Weather Center on Wheels]]> Thu, 04 Aug 2016 12:17:42 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016566856_1200x675_738161219576.jpg All week, we're bringing you an inside look at StormRanger10, NBC10's newest weather-tracking tool. StormRanger will provide our First Alert Weather team with technology and predictions so they can formulate the most accurate forecasts yet for our viewers. Check out StormRanger with Meteorologist Bill Henley here.]]> <![CDATA[Why There's More Rain & Snow Now in Storms]]> Wed, 03 Aug 2016 19:50:02 -0400 http://media.nbcphiladelphia.com/images/213*120/ellicott-flooding-maryland.jpg

MORE FLOODS & MORE BIG SNOWSTORMS

"There are rivers of moisture in the atmosphere. Only you can’t see them."

This is the way my former boss described how hurricanes are steered by upper-air winds. Dr. Neil Frank was Director of the National Hurricane Center, and he had an amazing ability to explain complex things in easy to understand ways.

It’s all about moisture.

There’s even moisture up there when skies are clear. Of course, there’s a lot more moisture around when it’s about to rain or snow. But just how much moisture is up there? Is there actually more moisture around now than in decades and centuries before? In a word, YES.

That extra moisture has helped produce more rain in storms all over the world. And when it’s cold enough, it has helped produce bigger snowstorms.

HOW DO WE KNOW?

It’s easy to say that there’s more moisture in today’s world. One way to tell is to measure the rain and snow. Let’s stay home and use Philadelphia as an example (many other cities around the world have similar results):

Here are our recent weather records -- all since 2009.

WETTEST YEAR

WETTEST SUMMER

WETTEST SINGLE DAY

WETTEST MARCH

WETTEST JUNE

WETTEST JULY

WETTEST AUGUST

SNOWIEST WINTER

SNOWIEST MONTH

SNOWIEST DECEMBER

SNOWIEST FEBRUARY’

2nd & 3rd BIGGEST SNOWSTORMS

We have kept official records in Philadelphia since 1871. That’s 145 years. Yet all of those records happened in less than EIGHT!

And it’s not just happening here. Heavy downpours have clearly increased across the U.S., especially in the Northeast.[[389088082,C]][[389088392,C]]

Can we measure direct evidence of an increase in moisture? It wasn’t possible before weather satellites. It is now. The satellites measure something called "Precipitable Water" (PWAT). That’s defined as "the total water vapor contained in a vertical column." That’s from the ground to the top of the atmosphere. The more water vapor, the more precipitable water there is. And that extra water vapor is what leads directly to increased rain or snow.

WATCHING THE RIVERS OF AIR

It’s a beautiful thing to see. Animations of those "rivers" of moisture show tropical moisture spreading westward across the Atlantic from Africa. The yellow and brown colors show the "thickest" moisture areas…

Water vapor has increased in recent years, according to more and more sophisticated "remote sensing" of the atmosphere.[[389088832,C]]

Notice that the greatest increase is in the tropics. But the yellow to orange colors off the U.S. East Coast show significant increases too. That’s the general picture. Now imagine a coastal storm, with a long path of onshore winds. We’re now adding extra moisture. This is confirmed by measurements of precipitable water in individual storms. I’ve seen many National Weather Service forecast discussions in recent years mentioning “record” or “near-record” PWAT ahead of a storm. I saw it in January of this year ahead of our giant snowstorm. I also saw it this past Thursday ahead of the system that brought 3-5 inches of rain in parts of Delaware and South Jersey.[[389094742,C]]

We can look back at storm after storm where record rain or snow has fallen and see extremely high PW ahead of it.

SO, WHY HAS PRECIPITABLE WATER INCREASED? AND WILL IT CONTINUE TO INCREASE IN THE FUTURE?

"Observations and climate model results confirm that human-induced warming of the planet is having a pronounced effect on the atmosphere’s total moisture content."

That’s the first line of a report nearly 10 years ago from the Lawrence Livermore National Laboratory. It’s been around since 1952, and is managed by the University of California for the U.S. Department of Energy.

Yes, global warming has already contributed to an increase in PWAT, which has then contributed to more record rain and snow. And future warming is likely to cause even higher levels of PWAT, which will likely contribute to even more record rain and snow. It won’t necessarily happen everywhere, for every storm, of course.

AND TO MAKE MATTERS WORSE

There’s this other thing about water vapor. It is considered to be a "positive feedback" that will increase global warming beyond what increases in carbon dioxide (CO2) will do. You see, water vapor is the most effective of all greenhouse gases, which warm the earth. Of course, almost all of it is natural, but not all.

Here’s how it works: the atmosphere warms due to human causes, then water vapor increases, which then helps increase temperatures, which helps increase water vapor even more, which then helps increase temperatures even more……and on, and on, and on…..How much of a positive feedback will it be? That’s one of the actual debates going on among climate scientists.

Water vapor isn’t the only positive feedback, either. Melting arctic ice leads to more heat being absorbed (ice reflects sunlight much more effectively than the darker ocean), which then melts more ice, which then causes more heat being absorbed, which then melts more ice…and on, and on, and on….

So, now we have carbon dioxide (and other greenhouse gases) leading to warming, plus the positive feedbacks of water vapor AND melting arctic ice. This is why many climate scientists are concerned that future warming will be even more (and faster) than many current computer models show. Climate skeptics often suggest that future warming will be slower than current models show. The positive feedbacks suggest that there’s at least a reasonable chance the models will underestimate future warming.

Glenn "Hurricane" Schwartz
Chief Meteorologist, NBC10 Philadelphia



Photo Credit: Howard County Executive Allan H. Kittleman / Facebook
This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
<![CDATA[StormRanger10 -- Another NBC10 First]]> Tue, 02 Aug 2016 13:09:14 -0400 http://media.nbcphiladelphia.com/images/206*120/StormRanger10.JPG

FIRST OF ITS KIND

Radar was developed during the period of World War II, in secret, and was a tremendous help detecting enemy airplanes. Many credit it as being an important factor in winning the war. They also found that radar showed where it was raining. After the war, radar started to get used for police (radar guns), civil aviation, marine navigation, and, of course, weather.

The first purely weather radar was developed by the Air Force in 1954, and the "Weather Bureau" (now the National Weather Service) started installing a nationwide network in the late 50s. Those radars lasted until around 1990 before being replaced by Doppler Radars. The Dopplers were upgraded to "Dual-Polarization" starting in 2011.[[388960622,C,482,544]]

And now, in 2016 NBC10 has gone to the next level: a mobile, dual-polarization Doppler radar developed exclusively for us. Instead of a network of fixed radars hundreds of miles apart, we can now go right to where the storms are!

WHY IS THIS A BIG DEAL?[[388960802, C,600,277]]

As good as Doppler radar is, there are weaknesses. Even the latest technology of Dual-Polarization has weaknesses. The first problem is that the earth is round. Any beam shooting out from radar will go in a straight line. So the farther the radar is from the storm, the higher in the storm the beam will hit.[[388961382,355,142]]

It might show the rain thousands of feet above the ground. Is that rain reaching the ground? They won’t know-if the rain is far enough away from the radar. Is the snow in the clouds up there still snow when it hits the ground? They won’t be able to tell. Has the rotation in the storm worked its’ way to the ground in the form of a tornado? They won’t be able to tell. That’s a big reason why there are so many “false alarms” of tornado warnings that don’t verify.

StormRanger10, by making sure it’s close to the storm, solves those problems-and more. By being close, the radar beam can stay very low in the cloud, making it much more accurate in determining:

Rain vs. snow vs. ice

Whether the rain or snow is reaching the ground

Whether a funnel cloud has reached the ground

And….just how heavy the rain is at the ground

MOST IMPORTANT: THE RADAR "GAP"

Existing National Weather Service radars are pretty far apart. No matter how carefully the NWS was in placing their sites, there were "gaps" where radar coverage is not as good as the rest of the area. Below is a map showing the radar network, plus the "gaps." The areas in green are covered the best. In the yellow areas, the radar beam gets so high that it "shoots over" a lot of the details of a storm. And the radar beam gets even higher in the storm in the area with no colors. I refer to this area as the "gap" between radars. That gap includes much of Chester and Berks Counties. It is a sad irony that the counties in our area with the historically highest tornado risk are Chester and Berks. But if we send StormRanger10 that way, the "gap" is closed.[[388961542,C,506,531]][[388961992,C,506,591]]

Some of the towns in the biggest gap (neither yellow nor green -- nothing can be seen below 6000 feet):

Reading, Kutztown, Morgantown, Lyons, Honey Brook, Parkesburg, Coatesville

And in the yellow area (smaller "gap" -- nothing can be seen below 4000 feet):

Allentown, Quakertown, Pennsburg, Boyertown, Pottstown, Limerick, Schwenksville, Royersford, Chester Springs, Valley Forge, Downingtown, Chadds Ford, Kennett Square, Chester Heights, Claymont, Hockessin, Wilmington, Newark, New Castle, Bear, Pennsville, Penns Grove.

The most dangerous tornadoes are the ones higher up in the Enhanced Fujita Scale. No EF-4 or EF-5 has been recorded in any part of our area, but there have been a couple of EF-3s. It’s no coincidence that both Lyons and Limerick are in the gap areas listed above.

So far in 2016, NBC10 First Alert Weather has debuted the revolutionary Neighborhood Forecasts, and now StormRanger10.

And there’s more to come…..

Glenn "Hurricane" Schwartz
Chief Meteorologist, NBC10 Philadelphia



Photo Credit: NBC10
This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
<![CDATA[Lightning Kills Delaware County Boy, 5]]> Mon, 01 Aug 2016 16:53:03 -0400 http://media.nbcphiladelphia.com/images/213*120/Chalfont+PA+Lightning+cp.png

A 5-year-old boy killed Sunday after he was struck by lightning on a beach in North Carolina, was from Delaware County, Pa.

Stephen Little was vacationing with his family. He was hit by lightning as they tried to get out of an afternoon storm and into their SUV on Carova Beach along the Outer Banks, according to the Currituck County Sheriff's office.

Family members got the little boy into their car and rushed down the beach to meet up with emergency crews.

Little, who suffered traumatic burns went into cardiac arrest. He later died at a hospital in Virginia Beach.



Photo Credit: Ray Leichner]]>
<![CDATA[How To View StormRanger Radar Data Online]]> Thu, 25 Aug 2016 15:38:11 -0400 http://media.nbcphiladelphia.com/images/213*120/SRfullshot.jpg

Our exclusive StormRanger mobile radar truck is a one-of-a-kind vehicle that has a live, high-powered Doppler Radar on board that enables StormRanger to get out ahead of a storm.

The StormRanger can track storms wherever they are with a higher degree of accuracy and with more detail than ever before.

When StormRanger's powerful radar is turned on and tracking storms, you can access the live radar feed on all of our digital platforms. Here's how:

On Desktop:

  • Open a browser and navigate to the station’s weather page
    • If the interactive radar is not on the Weather Landing Page, then navigate to the Maps and Radar page from the sub-navigation at the top of the page
  • Scroll down on the page to the “Interactive Radar and Maps” content
  • In the bottom right corner of the interactive radar map, click on “Layers”
  • A fly-out menu will appear. Click on the StormRanger layer icon
  • To close the menu, click on the “x” in the top right corner of the menu
  • When the menu closes, the StormRanger radar layer will be active on the map
    • If the StormRanger is not on, then “No Data” will appear on the interactive map layer
    • If the StormRanger is on, then precipitation images should appear on the map, if there are any detected in the area

On Mobile Web:

  • Open a browser and navigate to the station’s weather page
  • Scroll to the bottom of the page and click the “Interactive Radar and Maps” menu option
  • In the bottom right corner of the radar map, click on the layers icon. This icon looks like 3 sheets of paper stacked on top of one another
  • A fly-out menu will appear. Click on the StormRanger layer icon
  • To close the menu, click on the “x” in the top right corner. When the menu closes, the StormRanger radar layer will be active on the map
    • If the StormRanger is not on, then “No Data” will appear on the interactive map layer
    • If the StormRanger is on, then precipitation images should appear on the map, if there are any detected in the area

On Mobile Apps:

  • Open the app
  • If Weather is NOT set as the homepage, navigate to the weather page by tapping on the weather icon and temperature in the top right of the app header
  • Tap your finger on the gray arrow on the edge of the half moon map to expand the interactive radar
  • In the top right corner of the radar map, click on the layers icon. This icon looks like 3 sheets of paper stacked on top of one another
  • In the “Layers” section of the menu that appears, you will see an option for StormRanger
    • On Android, click the checkbox next to StormRanger
    • On iOS, tap the right edge of the StormRanger menu item. This should place a blue checkmark next to StormRanger
  • To go back to the interactive radar map:
    • On Android, click the back arrow in the top left corner of the menu
    • On iOS click the “Done” button in the top right corner of the menu
  • When the menu closes, the StormRanger radar layer will be active on the map
    • If the StormRanger is not on, then “No Data” will appear on the interactive map layer
    • If the StormRanger is on, then precipitation images should appear on the map, if there are any detected in the area


This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
<![CDATA[StormRanger10 Brings You Closer Than Ever to Severe Weather]]> Mon, 01 Aug 2016 09:08:38 -0400 http://media.nbcphiladelphia.com/images/260*120/StormRanger+Thumbnail.JPG Keith Jones and Sheena Parveen share the features on StormRanger10, NBC10's brand-new, Tornado Alley-tested doppler radar on wheels. StormRanger10 is the first of its kind in the United States, and it lives right here in the Delaware Valley so NBC10's First Alert Weather Team can take you closer to the storm and provide the most up-to-date weather information for your neighborhood.

Photo Credit: NBC10]]>
<![CDATA[Storms Leave Behind Damage, Flooding -- And More to Come]]> Sun, 31 Jul 2016 10:23:55 -0400 http://media.nbcphiladelphia.com/images/215*120/Tree+Down+10th+and+South.JPG

Heavy rains Saturday into Sunday and more rain expected prompted authorities to issue a flood advisory and flash flood warning throughout the Greater Philadelphia area for Sunday.

[[388773232, C]]

Sunday's early advisory lasted until 7:15 a.m. and covered Burlington, Camden and Mercer counties in New Jersey, as well as Bucks, Montgomery and Philadelphia counties in Pennsylvania.

A flash flood warning will remain in effect until 11 a.m. for portions of Burlington and Ocean counties in New Jersey. Flood advisories will also remain in effect until 11:45 a.m. for portions of the same counties.

[[388772761, C]]

Parts of the Jersey Shore were hit hard, including Ortley Beach near Seaside Heights, where viewer video showed a car stuck in a flooded intersection.

The nearby Ocean County Airport reported it received more than 5 inches of rain in Saturday's storms.

[[388775352, C]]

The wet weather also caused problems early Sunday on I-76 in Philadelphia, where water pooled on the highway causing lane restrictions and was likely to blame for at least one crash that temporarily shut down the road.

[[388772642, C]]

Periods of heavy and spotty rain are expected to continue throughout the morning, with a chance of scattered showers and thunderstorms returning in the afternoon and early evening.

[[388772101, C]]

Stay with NBC10.com and the NBC10 app for up-to-the-minute coverage of storms in your neighborhood.



Photo Credit: NBC10
This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
<![CDATA[Flash Flooding Prompts Water Rescues, Mass Transit Problems]]> Sat, 30 Jul 2016 20:19:35 -0400 http://media.nbcphiladelphia.com/images/213*120/Wawa+closed+due+to+Flooding.JPG

Emergency crews rescued more than 10 people in the Princeton area Saturday afternoon as storms dumped rain at a pace that overtaxed the drainage system.

Drivers got caught in fast-rising waters at University Place, Alexander and West Drive and South Harrison Street.

Water got high enough inside the pedestrian tunnel at Princeton Junction station that it cut off cross-platform access. NJ Transit brought in shuttle buses to get riders to the next station.

In West Windsor Township, a state of emergency was declared with major roads flooded.[[388758682,C]]

A Flash Flood Warning is up until 10:15 p.m. for central Mercer County where more than five inches of rain had fallen by 8 p.m., causing flooding in multiple locations across the county, including Princeton's campus.[[388750632,C]]

The warning extended to south central Somerset County and west central Middlesex County as well. Areas expected to get hit hardest include: South Brunswick, Ewing, Princeton, Princeton Junction, Rocky Hill, Kendall Park, Plainsboro Center, Lawrenceville, Edinburg, Kingston, Princeton Meadows, Mercerville-Hamilton-Hamilton Square, Monmouth Junction and Heathcote.[[388750642,C]]

Nassau Street Seafood in Princeton tried to make the best of it, inviting people to stop in and stay dry.[[388750912,C]]

Departures at Philly International were running two hours behind on average, due to weather.

Do not drive into water where you can't see the road. Turn Around. Don't Drown. Flood waters may be deeper than you think.[[388750782 ,C]]



Photo Credit: NBC10
This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
<![CDATA[Storms Hit Area as Heat Wave Breaks ]]> Thu, 28 Jul 2016 19:16:51 -0400 http://media.nbcphiladelphia.com/images/213*120/Storm-Damage-New-Lead.jpg The heat wave finally broke Thursday, giving way to severe storms throughout the area. Check out our viewer photos.

Photo Credit: Kerrie Fowler Kentzel]]>
<![CDATA[Severe Storms Bring Hail, Flooding to Region ]]> Fri, 29 Jul 2016 00:49:32 -0400 http://media.nbcphiladelphia.com/images/213*120/Wilmington-Lead-Photo-Light.jpg

The heat wave is finally over! We’ve had so much hot weather building up over the past week, we were destined for some severe weather and that’s exactly what we got Thursday night.

That severe weather was a bit different than what we usually see with summer storms. The main difference is the storms moved slower than normal (at 15-20 mph) as opposed to the traditional 35-40 mph or the 60 mph that we’ve seen in the past few months. The slower storms reduced the damaging wind risk but also created flash flooding in areas with poor drainage. A Flash Flood Watch is in effect for most of the region through Friday morning.

[[388600892, C]]

Some areas saw 2-3 inches of rain in a very short period of time due to the storms.

Storms moved in around 2:30 p.m. and primarily impacted the PA Suburbs, Philadelphia, Delaware and South Jersey. In Chester County there were reports of hail, flooding, lightning and downed trees as well as power lines.

More storms moved in between 11 p.m. and 4 a.m. Our models are indicating these may be the strongest of the night south of Philadelphia, especially in Delaware and the Jersey Shore. If you’re in those areas, you should expect to be awoken by thunder during the night if you’re a light sleeper.

We're in for more rain and isolated storms Friday morning before things clear during the afternoon. However, more storms are expected over the weekend.



Photo Credit: Jon Barton ]]>
<![CDATA[Extreme Heat at the Beach]]> Tue, 26 Jul 2016 20:31:18 -0400 http://media.nbcphiladelphia.com/images/215*120/dangerous+heat+jersey+shore.JPG The longest heat wave of the summer is affecting people even in places they're usually able to keep cool like the Jersey Shore.]]> <![CDATA[Lightning, Hail, Flooding Hit Region ]]> Mon, 25 Jul 2016 20:49:39 -0400 http://media.nbcphiladelphia.com/images/213*120/Lightning-Hits-Region.jpg Severe storms caused rain, hail, wind and lightning to slam the region on the first day of the Democratic National Convention in Philadelphia. Check out photos from our viewers. ]]> <![CDATA[Severe Storms, Flooding, Dangerous Heat Hit Region ]]> Tue, 26 Jul 2016 00:33:03 -0400 http://media.nbcphiladelphia.com/images/213*120/Lehigh-Valley-Lightning.jpg

Severe thunderstorms slammed the region causing heavy rain and flooding Monday. A Flash Flood Warning was in effect in Philadelphia and the surrounding suburbs until 11:15 p.m. A Flood Advisory was also in effect for Philadelphia, Montgomery and Burlington counties until 9 p.m.

Many areas in the Philly region dealt with heavy, slow moving rain and flooding. I-76 eastbound was closed at the Gladwyne exit in Montgomery County due to flooding. One eastbound lane is now currently getting by.

There was also flash flooding on MLK Drive in Philadelphia.

[[388211972, C]]

    A SEPTA bus and car were also trapped in flood waters underneath a bridge on Station and Railroad avenues in Bensalem Township. Crews managed to safely get passengers off the bus.

    [[388204172, C]]

    The storms caused chaos for both the media and demonstrators during the first day of the Democratic National Convention in Philadelphia.

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    Storm clouds turned the skies black over Franklin Delano Roosevelt Park as hundreds of activists readied to listen to Green Party candidate Jill Stein. Some people made their way out of the park as lightning lit up the skies but others stayed to hear the speech.

    The storm quickly turned torrential Monday evening with sheets of rain blowing sideways down south Broad Street. The severe storm didn't deter a group of protesters from chanting, "Feel the Bern" up against a metal fence at Broad and Pattison however.

    Police, media, delegates and convention volunteers sought refuge from the storm at SEPTA's AT&T station near the Wells Fargo Center. Some conventioneers braved the rain however, even without umbrellas, leaving them soaked in tailored suits and summer dresses.

    Journalists were also evacuated from the DNC press center. The Democratic National Committee recommended journalists leave the media compound because there was no protection against a direct lightning strike. They were directed to Lincoln Financial Field. 

    Before the storms, residents across Pennsylvania, Delaware and New Jersey dealt with sweltering heat. By Monday afternoon we hit the midpoint of our heat wave and the hottest temperatures, too -- reaching 98 degrees. However, it felt way worse. The heat index ranged between 105 and 110 degrees.

    The dangerous heat felt far more oppressive than what we’ve seen so far. The heat also fueled the storms Monday afternoon and evening leading to lightning, heavy rain, strong wind and flooding.

    This same pattern continues for Tuesday, Wednesday and Thursday. The temperatures decrease very gradually and the humidity comes down a bit as well. The next active storm day will be Thursday where a 92 degree forecast will be coupled with muggy conditions, and feel like 100. There will also be strong afternoon storms.

    If you’re coming to our city for the convention, welcome. We’ll keep you posted right here as the weather changes. If you’re from around here, I’m sure you’ve been thinking about heading to the Shore if you haven’t already. It’s going to be 5-10 degrees cooler there, so burn some of that extra vacation time and beat the heat (and the crowds).

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    A number of local municipalities are taking measures to help people stay cool and protect residents from serious health problems excessive heat can cause. Allentown reduced fees at its public pools, allowing residents to swim for free through the heat wave.

    In Philadelphia, the Heat Line is up and running at 215-765-9040, and in Montgomery County, officials issued a code red through 6 p.m. on Tuesday for excessive heat.

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    <![CDATA[Firefighters Rescue Trapped Woman After Tree Falls on Car ]]> Sun, 24 Jul 2016 00:11:06 -0400 http://media.nbcphiladelphia.com/images/213*120/Magnolia-NJ-Tree-Rescue.jpg

    A woman is recovering after violent storms caused a tree to fall on top of her car in Magnolia, New Jersey Saturday afternoon.

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    The tree crashed onto a car on Lincoln Avenue, trapping a woman inside. Responding firefighters managed to get the woman out. A woman who witnessed the rescue told NBC10 the victim appeared to be conscious and alert as she was brought out. Officials have not yet revealed her condition however.

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    Magnolia was just one of the countless areas in the region that was hit by severe storms. The storms ripped through the region Saturday bringing heavy rain, 60 mph wind gusts, lightning and hail. A Severe Thunderstorm Warning was in effect for most of the area until 6:15 p.m.

    The storms caused thousands of power outages across the region. As of 9 p.m. PECO reported 1,606 outages, with the majority in Montgomery County, Atlantic City Electric reported 4,538, with the majority in Camden County, and PSE&G reported 6,371.

    The storms also caused a transformer fire in Hi-Nella, Camden County. The witness claimed lightning struck the pole.

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      The heavy rain came in the midst of a Heat Advisory and Excessive Heat Warning for the majority of the region. CLICK HERE to keep track of all the weather alerts across the area.

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      Photo Credit: Chrissy Haas
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      <![CDATA[Severe Storms Rip Through Region ]]> Sat, 23 Jul 2016 19:24:45 -0400 http://media.nbcphiladelphia.com/images/213*120/Saturday-Storms-Newest-Lead1.jpg Severe storms with heavy rain, wind, lightning and hail ripped through the region Saturday. Check out these viewer photos.

      Photo Credit: Dre Burrell ]]>
      <![CDATA[Extreme Heat Wave: Smashing Records This Week/end]]> Sat, 23 Jul 2016 23:59:17 -0400 http://media.nbcphiladelphia.com/images/213*120/GettyImages-81502754_ola+de+calor.jpg

      THE REAL HEAT STARTS NOW  

      We hit 94 in Philadelphia on Friday. 94 is a kind of been there, done that type of heat. We’ve gotten to 94 four times in the past ten days. However, Saturday’s high of 98 is a different story. We haven’t gotten to 98 since July of 2013.

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      It’s all thanks to a massive dome of heat prompted by a giant dome of high pressure bringing in wind from the West Southwest. If you’re wondering why we’re hitting 92 on the beach at the shore, it’s because of that wind (and yes, we’re hitting the 90s on the sand at the shore, sorry.) Needless to say, the burn time is an exceptionally quick 10 minutes, so sunscreen is a must, as is lots and lots of water.

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      Saturday is our Clear The Shelters day here at NBC10, so whether you’re adopting a pet or have had one for a while, we cannot stress the importance of not leaving your pet (or your kids) in a closed car, even with the windows cracked. It takes just 60 minutes for your closed up car to hit 140 degrees in our weather, which is the temperature you cook steak to, so make sure you pay extra attention to this.

      Sunday will be slightly cooler, 97 in Philadelphia and 90 at the Shore. We’ll be within a degree of Philadelphia’s record on Sunday. The humidity will creep up a bit on Sunday, as well. That means the 97 will feel somewhere around 102-104.

      The high 90s roll right through to Monday, when we top out at 99, a new record for the day and a feat we haven’t accomplished on any day in the calendar in over four years.

      On top of that 99, it will be very humid, so that 99 will feel close to 110 degrees. A heat that high combined with bad air quality means you shouldn’t be doing any physical activity outside (we give you permission to take the day off) and you should stay indoors as much as possible. There are also some storms rolling through for Monday.

      THE HEAT ROLLS ON

      We’re looking at an eight day heat wave here, as temperatures head to the mid-90s for Tuesday and Wednesday and then the sweet, sweet relief of low-90s for Thursday and Friday (not sure 90 counts as relief, but hey…we’ll take what we can get.)

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      Photo Credit: Getty Images
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      <![CDATA[Dangerous Heat for the DNC]]> Thu, 21 Jul 2016 01:20:15 -0400 http://media.nbcphiladelphia.com/images/191*120/WFCamp.JPG

      THE HOTTEST DAYS IN YEARS

      There’s no easy way to put this…this weekend is going to be a scorcher. We’re forecasting a high of 97 degrees, which is the warmest we’ve been since July 18, 2013, over three years ago. If you can escape to the beaches, it will be a little cooler (somewhere around 90) but the sea breeze won’t be as potent as usual. That’s because our sea surface temperatures are running at least 5 degrees above average. If you’re just coming in to town for the convention, think about a day trip to the Jersey Shore until convention activities get started on Monday. Sightseeing in Philadelphia will be exceptionally hot. The good news for Saturday is that humidity will be low, so at least it’s a dry heat. Some places in our area will likely hit 100, though.[[387685871,C]]

      Sunday will have the same outdoor air temperature but the humidity will already start to creep up a bit. That same 97 will feel like 101 or 102. Things get even worse on Monday, when the dew points move firmly into the oppressive category. The heat index will range between 105 and 110 degrees. This is very dangerous heat. Because of the moisture in the atmosphere, your sweat won’t actually cool you down all that much and it is very easy to get dehydrated. If you’re out protesting, the pavement will absorb the heat and hold on to it long after the sun goes down, in something called the “urban heat island effect.” We will hit the 90s before noon and stay there through 7 PM. Even the night won’t provide much relief, as we’re forecasting a low in the upper 70s. It’s also important to note that Monday has the best chance of thunderstorms. You’ll want to keep an eye to the sky and make sure you have some place to go through if one of them rolls through. Our NBC10 app will send a push alert when storms are 30 minutes away, which will give you ample time to get indoors somewhere. Lightning and damaging wind is possible, so it’s not a good idea to wait these out outdoors.

      The weather story is a bit of a broken record. This same pattern continues for Tuesday, Wednesday and Thursday. The temperatures decrease very gradually and the humidity comes down a bit as well, but we keep the storm threat in there for every day that week. They’ll be much more isolated but it will still be important to be weather aware. The heat index for the rest of the week will be around 100, as well.

      We’re the only ones in town with a 10 day forecast…our “10 day on 10.” Here’s the relevant days for the convention:[[387680451, C]]

      If you’re coming to our city for the convention, welcome. We’ll keep you posted right here as the weather changes. If you’re from around here and have some vacation time, I have two words for you…Shore Week. Seriously.



      Photo Credit: SkyForce10
      This story uses functionality that may not work in our app. Click here to open the story in your web browser.]]>
      <![CDATA[Summer Storm Leaves Damage Behind]]> Tue, 19 Jul 2016 11:12:33 -0400 http://media.nbcphiladelphia.com/images/213*120/WCAU_000000016327032_1200x675_727690819786.jpg The clean-up continued Tuesday for residents in Havertown, Pennsylvania after a strong storm knocked down tree limbs and power lines.]]> <![CDATA[Downed Wires Electrocute NJ Driver]]> Tue, 19 Jul 2016 08:49:38 -0400 http://media.nbcphiladelphia.com/images/213*120/woman+electrocuted+nj.jpg

      A woman was killed when she made contact with a live storm-downed wire while trying to get out of her car in New Jersey Monday, police say. 

      The wire came down on the car at Midway Avenue and Ginder Place in Fanwood as storms swept through in the late afternoon, according to Fanwood Police Chief Richard Trigo. 

      The 26-year-old driver tried to get out through the passenger side and made contact with the downed wire and died, Trigo said.

      The unidentified woman was the only person in the car, Trigo said.

      A woman driving home with her 12-year-old daughter witnessed the electrocution. They said the rain was pouring when a tree branch snapped, taking down electrical wires. One of the cables fell on top of the victim's car in front of them.

      "The wire fell on this side of the car and she went through the other door, and that's when she put her elbow on one of the wires. And that's when she fell," said the daughter, Camila Chacha.

      Her mother, Eliberia Delgadillo, said she began panicking as they watched the horror unfold.

      "She said, 'Mom, relax,' I can't, I can't, I saw her when she burned," said Delgadillo, who returned to the scene with her daughter later in the evening to leave flowers. 

      "We just called 911, and we couldn't do anything right there -- we couldn't get out of the car or back up, we just had to look at her," said Camila. 

      "It was so scary, and I never want to go through anything like that ever again," she said in tears. 

      Utility companies often remind customers to stay in their cars if a live wire falls on it, especially because tires are electrical conductors -- not insulators, as many mistakenly believe. 

      "It is true that you are safe in your vehicle when a live wire falls on it. But that's because electricity always seeks the easiest path to the ground," PSE&G says. "If you remain in the vehicle, the path of the electricity will be on the outside of the vehicle, through the tires, and into the ground."

      "As long as we do not provide a path to the ground through our body the electricity will not enter it. So when an electrical wire falls on your vehicle, stay in your vehicle until help arrives and the power is shut off," PSE&G says. 

      If you must get out because of a fire or other danger, jump clear out with both feet together, making sure not to touch any other part of the car as the feet hit the ground. Then keep both feet together and hop or shuffle at least 30 feet away. 



      Photo Credit: NBC 4 NY]]>
      <![CDATA[Storm Rolls Though Area]]> Mon, 18 Jul 2016 23:08:32 -0400 http://media.nbcphiladelphia.com/images/213*120/Drone-Photo-of-Storm-Cloud.jpg Severe storms moved through the region Monday. Check out these photos from NBC10 viewers.

      Photo Credit: Ray Leichner ]]>
      <![CDATA[Severe Storms With Lightning, Wind, Hail Rip Through Region ]]> Tue, 19 Jul 2016 00:16:05 -0400 http://media.nbcphiladelphia.com/images/213*120/Lightning-at-Airport.jpg

      Severe storms with lightning, heavy rain, high winds and hail ripped through the region Monday afternoon causing widespread outages and damage. A Severe Thunderstorm Watch was in effect for almost the entire region until 8 p.m.

      The FAA also issued a ground stop for flights departing to Philadelphia due to the weather. The ground stop was later canceled however.

      The storm also slammed the Lehigh Valley, leaving 16,717 PPL customers in the area without power at its peak. The weather also caused a roof to partially collapse into the first floor of a home on the 1900 block of Ronald Drive in Whitehall Township.

      "You could see the front door start shaking so bad," said Samira Salim, who was inside the house during the partial collapse. "I ran downstairs and my mom is yelling because the roof is flying. A lot of stuff. Debris is flying all over."

      Officials have not yet revealed if anyone was injured. Storms also caused widespread damage to homes and businesses in Havertown, Delaware County, including the Swiss Farms at 820 N. Eagle Road.

      "Next thing you know we had another big lightning bolt," said Dawn Gallo, the manager of Swiss Farms. "We heard this big thud."

      Scott Simon, the store's president and CEO, told NBC10 the store's 40-year-old silo collapsed in roughly 20 seconds.

      "Thank God no car was inside and no one got hurt," Simon said. "That's the most important thing. Everything else can be repaired."

      Simon told NBC10 the storm caused $100,000 in damage. They plan to rebuild the silo.

      Conditions will clear overnight and we're in for a partly sunny and less humid Tuesday with a high of 89.

      This story is developing. Check back for the latest weather updates.



      Photo Credit: Mike
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      <![CDATA[Tornado Touches Down in NJ]]> Mon, 18 Jul 2016 06:44:45 -0400 http://media.nbcphiladelphia.com/images/213*120/warren+county+weather+damage+nj.jpg

      The National Weather Service has confirmed a tornado touched down in Warren County, New Jersey during Thursday's storms. 

      The EF-0 tornado touched down near White Township and skipped along a path nearly 3 miles long, damaging a barn and a home, and shearing the tops of trees.

      The owner of the barn, Tom Smith, told NBC 4 New York he saw the black funnel cloud spiral toward his 20-acre farm Thursday afternoon.

      "The first minute is silent. And they say it sounds like a freight train -- it doesn't, it sounds like 10 freight trains," said Smith. 

      Smith was out in the field with his two dogs, cutting hay, when the force of the wind picked up his 150-pound St. Bernard, who survived with just a scratch. Then the storm turned toward the barn, tearing it to pieces. 

      "I watched the whole barn disappear," he said.

      The stalks of corn across the acres of farmland were flattened, and a tractor-trailer tipped over, along with a hay wagon and 40-pound bales. 

      "I am lucky to be alive," he said. "For anyone who is watching, it's no joke." 

      ]]>