Philadelphia will narrowly miss summerlike heat Thursday and Friday, but it turn noticeably warmer for Mother's Day weekend.
Temperatures will surge into the 80s over much of Virginia, western Maryland and western and central Pennsylvania Thursday into Friday. The Philadelphia area and points to the east will be under the influence of a cool, damp flow of air from the Atlantic Ocean and the Delaware Bay.
A stalled front will be responsible for the temperature split and it will also spark a shower or thunderstorm each day.
The warmth will push in from the southwest this weekend, but right around the same time, moisture will arrive from the Gulf of Mexico.
As a storm system moves along in the warm, humid air from the Gulf, locally drenching showers and thunderstorms are in the offing, along with 80-degree temperatures.
Enough rain could fall in a short time to cause flash and urban flooding problems Saturday.
The wet weather will fade Saturday night as it turns drier just in time for Mother's Day. Sunshine will mix with clouds on Sunday as highs soar into the lower 80s.
Content contributed by Andy Mussoline, AccuWeather Meteorologist
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