First Alert Weather March 11, 2022 6:54 am First Alert Weather: Tracking Saturday Snow, Plunging Temps NBC10 meteorologist Steve Sosna is tracking plunging temps Saturday as rain changes over to snow. Northern and eastern parts of the Philadelphia region will be under a First Alert US & World Videos 2:36 Gloomy weather sticks around for Sunday's Broad Street Run 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