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Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Coastal Waters Forecast for Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055) (Text-Only)
NWS Forecast for: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055)
Issued by: National Weather Service Key West, FL
Last Update: 421 PM EDT Sun Sep 6 2026		Print

Tonight: Southeast to south winds near 5 knots. Seas around 1 foot. Wave detail: east to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms.

Monday: Southeast to south winds near 5 knots. Seas around 1 foot. Wave detail: east to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms.

Monday Night: East winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms. Wave detail: east to southeast 1 foot at 3 seconds.

Tuesday: East winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms.

Tuesday Night: East winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms.

Wednesday: East winds near 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms.

Wednesday Night: East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms.

Thursday: East to southeast winds 10 to 15 knots, becoming east and decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to around 2 feet. A slight chance of showers and thunderstorms.

Thursday Night Through Friday Night: East to southeast winds near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms.






Zone Forecast: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055)

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