Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. 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: 424 PM EST Tue Jan 20 2026
Print




Tonight: Northeast winds 20 to 25 knots, increasing to near 25 knots. Seas 6 to 9 feet, occasionally to 11 feet, building to 7 to 10 feet, occasionally to 13 feet. Wave detail: northeast 9 feet at 8 seconds. Isolated showers.

Wednesday: Northeast to east winds 20 to 25 knots, decreasing to near 20 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave detail: northeast to east 9 feet at 8 seconds. Scattered showers.

Wednesday Night: Northeast to east winds near 20 knots, decreasing to 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet, subsiding to 4 to 7 feet, occasionally to 9 feet. Wave detail: northeast to east 8 feet at 8 seconds. Scattered showers.

Thursday: Northeast to east winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 3 to 5 feet, occasionally to 6 feet. Scattered showers.

Thursday Night: Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers.

Friday: East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers.

Friday Night And Saturday: East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers.

Saturday Night: East to southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers.

Sunday: Southeast to south winds near 10 knots, becoming southwest to west. Seas subsiding to 1 to 2 feet. Isolated showers.

Sunday Night: West to northwest winds 10 to 15 knots, becoming northwest to north. Seas around 1 foot. Isolated showers.







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

Visit your local NWS office at: https://www.weather.gov/key