Philadelphia September 12, 2018 1:06 pm NBC10 First Alert Weather: Flooding Possible Chances of thunderstorms in the Philadelphia region has us in a First Alert for a flooding threat. NBC10 First Alert Weather meteorologist Brittney Shipp has details. US & World Videos 2:44 Cloudy, chance for rain this weekend 2:41 The weekend kicks off with mostly cloudy skies and passing showers 2:31 Back to cooler temperatures 2:36 Back to spring temperatures 3:09 Departure from hot weather with cloudy conditions and cooler temps