July 17, 2019 5:24 pm NBC10 First Alert Weather: Dangerous Heat Wave Begins The dangerous heat wave has begun in our area and heavy rain is also set to hit our region Wednesday evening. NBC10 First Alert Weather chief meteorologist Tammie Souza has the forecast. US & World Videos 9:49 Danger in treats left out for pets: The Lineup 0:28 Dangerous dog treats found along Lehigh County stretch of Appalachian Trail 0:18 Former PAL coach sentenced for sexual assault of teen 0:50 Pat's Steaks set to reopen and add new items to their classic menu 1:56 10-year-old boy killed, another boy and teen driver injured in Wilmington crash