Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 to 60 NM Marine Forecast
| Overnight...Northeast Winds Near 25 Knots. Seas 6 To 10 Feet, Occasionally To 12 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 6 To 10 Feet, Occasionally To 12 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. |
| Area Forecast Discussion National Weather Service Key West FL 1030pm EST Tuesday Jan 20 2026 Issued at 1030pm EST Tuesday Jan 20 2026 Upper-level geopotential height analysis highligheights a split jet pattern, with a very active subtropical jet impacting the southern third of the CONUS. The Southeast continues to be enveloped by overall weak ridging, while a very important shortwave trough is observed now approaching Baja California. This featuer will eventually phase with the northern jet as it progresses eastward to support a high- impact winter storm over the weekend for the Southeast and Mid-Atlantic. At the surface, an area of high pressure approaching the Appalachian Mountains continues to support breezy to windy conditions across the Florida Keys. GOES-19 microphysics imagery is detecting occasional mid- level clouds pushing through the Florida Keys, with low-level clouds just to the southeast that may progress towards the Keys overnight. KBYX is void of any meteorological returns. The forecast is rather routine tonight, with partly to mostly skies, temperatures dropping into the mid 60s, and nil rain chances. Marine Issued at 1030pm EST Tuesday Jan 20 2026 A Small Craft Advisory remains in effect for all Florida Keys marine zones. From synopsis, an expansive high pressure system will continue to move across the eastern United States over the next several days, leading to a strengthening pressure gradient. This will support bouts of fresh to strong breezes throughout the work week. The high will move out into the western North Atlantic by late week while weakening. This will support slackening breezes for Friday night and Saturday. NOAA Key West FL Office: Watches - Warnings - Advisories FL...None. GM...Small Craft Advisory until 5am EST Wednesday for GMZ031>035- 042>044-052>055-072>075. |
Key West FL Radar
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