Tropical Storm Bertha in the Gulf; Severe Weather in the East on Tuesday

Tropical Storm Bertha could bring tropical storm conditions to portions of the Florida Panhandle and Alabama coast through Wednesday, where a Tropical Storm Watch and Storm Surge Watch is in effect. Numerous severe thunderstorms with heavy rainfall are expected from the Ohio Valley into the Mid-Atlantic and Northeast Tuesday. Read More >

Coastal Waters Forecast for Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM (ANZ454) (Text-Only)
NWS Forecast for: Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM (ANZ454)
Issued by: National Weather Service Philadelphia, PA
Last Update: 401 PM EDT Mon Jul 20 2026




Tonight: SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 6 seconds and E 1 foot at 3 seconds. A slight chance of showers and tstms late.

Tue: S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Wave detail: S 3 ft at 6 seconds, becoming S 4 ft at 5 seconds. A chance of tstms. Showers likely, mainly in the morning.

Tue Night: SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft, building to 5 to 7 ft after midnight. Wave detail: S 5 ft at 7 seconds, becoming S 6 ft at 8 seconds. Showers with a chance of tstms.

Wed: SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave detail: S 6 ft at 7 seconds. Showers with a chance of tstms.

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. Showers with a chance of tstms in the evening, then showers likely after midnight.

Thu: N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt in the afternoon. Seas 3 to 4 ft. Wave detail: S 4 ft at 8 seconds and N 2 ft at 4 seconds. A chance of showers in the morning.

Thu Night: NE winds 5 to 10 kt. Seas 2 to 3 ft.

Fri: NE winds around 10 kt. Seas 2 to 3 ft.

Fri Night: NE winds 5 to 10 kt. Seas 2 to 4 ft.

Sat: NE winds 5 to 10 kt. Seas 3 to 4 ft.

Sat Night: E winds 5 to 10 kt. Seas 3 to 4 ft.

winds and seas higher in and near tstms.







Zone Forecast: Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM (ANZ454)

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