Severe Thunderstorm and Tropical Storm Bertha Impacts

Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected and some tornadoes are possible. Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the Florida Panhandle westward to southeastern Louisiana later today and Wednesday. Read More >

Hazardous Weather Conditions

Last Update: 401 PM EDT Tue Jul 21 2026

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Philadelphia, PA Local Forecast Office

20NM SSW Atlantic City NJ

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT... ...TORNADO WATCH 507 IN EFFECT UNTIL 9 PM EDT THIS EVENING...

Tonight

SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave detail: S 7 ft at 7 seconds. Showers and tstms early this evening, then showers with a chance of tstms late this evening and overnight.

Wed

SW winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 5 to 7 ft. Wave detail: S 7 ft at 8 seconds. A chance of tstms. A chance of showers in the morning, then showers likely in the afternoon.

Wed Night

SW winds 10 to 15 kt, becoming NW after midnight. Seas 3 to 5 ft. Wave detail: S 5 ft at 8 seconds. A chance of tstms. Showers likely.

Thu

NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave detail: S 3 ft at 7 seconds and N 2 ft at 2 seconds.

Thu Night

E winds 5 to 10 kt. Seas 3 to 4 ft. Wave detail: S 3 ft at 7 seconds and NE 2 ft at 5 seconds.

Fri

NE winds around 10 kt. Seas 2 to 3 ft. Wave detail: E 2 ft at 6 seconds.

Fri Night

E winds 5 to 10 kt. Seas around 3 ft.

Sat

NE winds 10 to 15 kt. Seas 3 to 4 ft.