| 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: 1013 PM EDT Mon Apr 20 2026 |  |
Overnight: Northeast winds 15 to 20 knots, becoming northeast to east and increasing to 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 6 feet, occasionally to 8 feet. Wave detail: north 4 feet at 6 seconds, becoming north to northeast 6 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. Tuesday: Northeast to east winds near 25 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave detail: northeast to east 10 feet at 8 seconds and northwest 2 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. Tuesday Night: Northeast to east winds 20 to 25 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave detail: northeast to east 10 feet at 8 seconds. Wednesday: East winds near 20 to 25 knots, decreasing to near 20 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet. Wednesday Night: East winds near 20 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers. Thursday: East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers. Thursday Night: East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers and thunderstorms. Friday: East to southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms. Friday Night: East winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A slight chance of showers and thunderstorms. Saturday: East to southeast winds near 10 knots. Seas 2 to 3 feet. Saturday Night: East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. | |
| Zone Forecast: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055) | |
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