One More Day of Heat with Severe Storms and Heavy Rain

One more day of early-season heat will grip the Northeastern U.S. today from New England to the Mid-Atlantic. A few more record highs are possible and heat advisories remain in effect from Boston to Philadelphia. Also, a cold front arriving into the East may produce strong to severe storms and heavy rain, which may result in flash flooding, from New England to the Southeast and Gulf Coast.
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Last Update: 403 PM EDT Sun May 22 2022

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Philadelphia, PA Local Forecast Office

31NM SSE New York NY

Marine Zone Forecast

Synopsis: A strong cold front will move through the region tonight, and the front will settle offshore on Monday. High pressure builds in for Tuesday and Wednesday, then a frontal system may approach the area later next week.

Tonight

S winds 10 to 15 kt, becoming NW after midnight. Gusts up to 20 kt. Seas 3 to 4 ft. A chance of tstms this evening, then a slight chance of showers after midnight. Swell mainly from the S with a dominant period of 5 seconds.

Mon

N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 4 ft. Swell mainly from the N with a dominant period of 5 seconds.

Mon Night

S winds around 5 kt, becoming E around 5 kt after midnight, then becoming NE late. Seas 2 ft or less. Swell mainly from the NE with a dominant period of 5 seconds.

Tue

E winds 10 to 15 kt. Seas around 3 ft. Swell mainly from the E with a dominant period of 6 seconds.

Tue Night

E winds around 10 kt. Seas around 3 ft.

Wed

E winds around 10 kt. Seas around 3 ft.

Wed Night

SE winds around 10 kt. Seas around 3 ft. A chance of showers after midnight.

Thu

S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.

Thu Night

S winds around 15 kt. Seas 3 to 4 ft. Showers likely.