Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska
A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >
| 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: 424 AM EDT Mon Oct 19 2026 | |
Today: Northeast to east winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet, except 7 to 10 feet, occasionally to 13 feet in the eastern straits. Wave detail: northeast to east 9 feet at 8 seconds. Showers likely with a slight chance of thunderstorms. Tonight: Northeast winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave detail: northeast 8 feet at 8 seconds. A chance of showers with a slight chance of thunderstorms. Tuesday: Northeast winds 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. Wave detail: northeast 8 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. Tuesday Night: Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers and thunderstorms. Wednesday: Northeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 5 feet, occasionally to 6 feet. A chance of showers with a slight chance of thunderstorms. Wednesday Night: Northeast winds near 15 knots, increasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. A chance of showers with a slight chance of thunderstorms. Thursday: Northeast winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A chance of showers with a slight chance of thunderstorms. Thursday Night: Northeast winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. A chance of showers and thunderstorms. Friday: Northeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Showers likely with a slight chance of thunderstorms. Friday Night: Northeast winds near 15 knots, increasing to 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Showers likely with a chance of thunderstorms. | |
| Zone Forecast: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055) | |
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