Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains
Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >
| NWS Forecast for: Delaware Bay waters south of East Point NJ to Slaughter Beach DE (ANZ431) Issued by: National Weather Service Philadelphia, PA Last Update: 401 AM EDT Thu Sep 18 2025 | |
| Today: N winds 5 to 10 kt, becoming W late. Seas around 2 ft. Wave detail: SE 2 ft at 8 seconds and N 1 foot at 2 seconds. Tonight: SW winds 5 to 10 kt. Seas around 2 ft. Wave detail: NW 1 foot at 2 seconds and SE 1 foot at 8 seconds. Fri: W winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave detail: W 1 foot at 2 seconds and SE 1 foot at 8 seconds. Fri Night: SW winds around 5 kt, becoming N after midnight. Seas 1 foot or less, then around 2 ft after midnight. Wave detail: SE 1 foot at 8 seconds, becoming N 1 foot at 2 seconds and SE 1 foot at 8 seconds. Sat: NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave detail: NE 2 ft at 3 seconds and SE 1 foot at 8 seconds. Sat Night: E winds 10 to 15 kt. Seas around 2 ft. Wave detail: E 2 ft at 3 seconds and SE 1 foot at 7 seconds. Sun: E winds 10 to 15 kt. Seas around 2 ft. Sun Night: E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Mon: E winds 5 to 10 kt. Seas 2 to 3 ft. Mon Night: S winds 5 to 10 kt. Seas 2 to 3 ft. | |
| Zone Forecast: Delaware Bay waters south of East Point NJ to Slaughter Beach DE (ANZ431) | |
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