Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Coastal Waters Forecast for Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out (GMZ075) (Text-Only)
NWS Forecast for: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out (GMZ075)
Issued by: National Weather Service Key West, FL
Last Update: 425 PM EDT Wed Apr 15 2026
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Tonight: Northeast to east winds 15 to 20 knots early, decreasing to near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: northeast to east 4 feet at 5 seconds.

Thursday: Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 5 seconds.

Thursday Night: Northeast to east winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. wave detail: northeast to east 4 feet at 5 seconds. A slight chance of showers.

Friday: Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers.

Friday Night And Saturday: Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers.

Saturday Night: East winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to around 2 feet.

Sunday: East winds near 10 knots, decreasing to 5 to 10 knots. seas around 2 feet, subsiding to 1 to 2 feet.

Sunday Night: Northeast winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet.

Monday: Northeast winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet.

Monday Night: Northeast winds 15 to 20 knots, increasing to near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 7 feet, occasionally to 9 feet. A slight chance of showers and thunderstorms.







Zone Forecast: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out (GMZ075)

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