3:00 PM Widespread and prolonged significant rain event gets underway this evening

Heavy showers and strong thunderstorms continue across northern Maryland at this hour and these will affect portions of SE PA early this evening which will begin our widespread and prolonged significant rain event.  These current showers and storms will first pound northern Maryland from Baltimore north and east to the PA border over the next two hours and then should affect SE PA after 5PM or so.  Additional heavy showers and strong storms will occur overnight throughout the Philly metro region (including South Jersey) and this prolonged significant rain event will likely continue off and on into Tuesday with some impressive final rainfall totals of at least a few inches in spots.