Philadelphia

Half & Half Weekend? Lots of Rain on the Way

Like last week, a large area of low pressure will travel from near St. Louis and track near or just north of Philadelphia. This one doesn’t have tropical moisture, but there’s more than enough to produce heavy rain for at least part of our weekend. Here are the computer model maps for both Saturday and Sunday afternoon:

storm photo 1
tropicaltidbits.com

Watch the "L." It’s near Pittsburgh Saturday and then moving into southeast New York Sunday. That track — north of Philadelphia — would lead to a much lower rain chance for the second half of the weekend. It would also allow warmer air to move in Sunday, and even some sunshine.

A track south of Philadelphia would lead to some rain Sunday morning and cooler weather too. But the trend has clearly been for the northern track — good news for Sunday!

There are some problems for Saturday, though. There WILL be rain moving in, and it certainly looks like the heaviest will be late in the day and at night.

Computer models suggest 1-3 inches of rain, plus possible thunderstorms. Once the rain starts, there will be many hours of it. This is not just a few showers. The best chance of dry weather Saturday is in the morning. The earlier the better for your outdoor activities.

THE FORECAST

SATURDAY

  • Philadelphia-area: Cloudy and cool. Rain developing — becoming heavy late in the day and at night. High 72. Chance of rain 40% in the morning…near 100% by night
     
  • Jersey Shore: Clouding up. Rain develops in afternoon. Heavy at night. High 68. Chance of rain 20% in the morning….near 100% by night. Atlantic City ocean temp: 71
     
  • Delaware Beaches: Clouding up. Rain develops in afternoon. Heavy at night. High 72. Chance of rain 40% in the morning…near 100% by night.
     
  • Poconos: Rain, becoming heavy at times. Local flooding possible. Rainy at night, too. Chilly, with High 58. Chance of rain near 100%

SUNDAY

  • Philadelphia-area: Clouds and sun. Warmer. High 78. Chance of rain 15%
     
  • Jersey Shore: Sun and clouds. Warmer. High 78. Chance of rain 10%
     
  • Delaware Beaches: Sun and clouds. Warmer. High 83. Chance of rain 10%
     
  • Poconos: Mostly cloudy. Chance of a shower. Not as chilly. High 67. Chance of rain 40%
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