Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest
An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. 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 Jun 18 2026 | |
Today: S winds 15 to 20 kt with gusts up to 30 kt, becoming SW with gusts up to 30 kt late. Seas 2 to 3 ft. Wave detail: S 3 ft at 5 seconds. A chance of showers and tstms this afternoon. Tonight: W winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas around 2 ft. Wave detail: SW 2 ft at 4 seconds. A chance of showers. Fri: W winds 5 to 10 kt. Seas around 2 ft. Wave detail: SE 2 ft at 7 seconds and W 1 foot at 3 seconds. Showers likely, mainly in the morning. Fri Night: W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Wave detail: NW 2 ft at 3 seconds and SE 2 ft at 7 seconds. Sat: W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave detail: NW 2 ft at 3 seconds and SE 1 foot at 8 seconds. Sat Night: W winds 5 to 10 kt. Seas around 2 ft. Wave detail: NW 1 foot at 3 seconds and SE 1 foot at 7 seconds. Sun: W winds around 5 kt, becoming SW in the afternoon. Seas 1 foot or less. Sun Night: S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers and tstms after midnight. Mon: S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms. Mon Night: SW winds around 15 kt, becoming NW after midnight. Seas 2 to 3 ft. Showers likely with a chance of tstms in the evening. winds and seas higher in and near tstms. | |
| Zone Forecast: Delaware Bay waters south of East Point NJ to Slaughter Beach DE (ANZ431) | |
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