Thunder Threat Later Tonight

There is a window of opportunity for some stronger storms later tonight -- generally after the Phillies game in the city and after 9 or 10 in Eastern and South Central Pennsylvania.  A severe thunderstorm watch is out until 10 PM for areas north and west of suburban Philadelphia.    Thunderstorms are lined up across Central Pennsylvania -- generally west of I-81 -- and are slow moving, with flash flood warnings out along the line across much of Central Pennsylvania.

At current rate, the worst of the heavy rain and thunder will stay west and northwest of Philadelphia but there is a chance for some thunderstorms to develop along the front across Maryland later tonight and work their way northeast into Philadelphia, especially after Midnight, if some of the higher resolution guidance is correct. I don't anticipate those storms to be severe on a widespread scale but heavy rain can't be ruled out.

The bigger story with the front is tomorrow's temperatures, which may not reach 60 during the day north and west of the city.   Our highs for Wednesday will probably be reached at 1 AM (midnight standard time), perhaps in the 70's depending on rainfall timing, with daytime temperatures staying in the 50's for much of the day before reaching 60 in the afternoon as sun pops out later in the day.

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