Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 to 60 NM Marine Forecast
| Today...East To Southeast Winds 10 To 15 Knots Early, Decreasing To 5 To 10 Knots. Seas Around 2 Feet, Subsiding To 1 To 2 Feet. Wave Detail: East To Southeast 2 Feet At 4 Seconds. A Slight Chance Of Showers. |
| Tonight...East To Southeast Winds 5 To 10 Knots, Becoming Southeast To South After Midnight. Seas 1 To 2 Feet, Subsiding To Around 1 Foot. Wave Detail: East To Southeast 2 Feet At 4 Seconds. A Slight Chance Of Showers And Thunderstorms. |
| Thursday...South To Southwest Winds 5 To 10 Knots, Becoming West To Northwest Near 10 Knots In The Afternoon. Seas Around 1 Foot. Wave Detail: East To Southeast 1 Foot At 4 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Thursday Night...West To Northwest Winds Near 10 Knots. Seas 1 To 2 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Friday...Northwest To North Winds 10 To 15 Knots. Seas 1 To 2 Feet, Building To 2 To 3 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Friday Night...Northwest To North Winds Near 15 Knots, Becoming North To Northeast Near 20 Knots. Seas 2 To 3 Feet, Building To 3 To 6 Feet, Occasionally To 8 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Saturday...North To Northeast Winds Near 20 Knots, Decreasing To 15 To 20 Knots. Seas 4 To 7 Feet, Occasionally To 9 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Saturday Night...Northeast Winds Near 15 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. A Slight Chance Of Showers. |
| Sunday...Northeast To East Winds Near 15 Knots, Increasing To 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Sunday Night...Northeast To East Winds Near 20 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Area Forecast Discussion National Weather Service Key West FL 434am EST Wednesday Nov 11 2026 .SHORT TERM... (Today and tonight) Issued at 434am EST Wednesday Nov 11 2026 High pressure that was over the Southeastern U.S. has moved offshore and is now just north of the Bahamas. This has allowed for more of a southeast trajectory across the region this morning. This has also allowed for somewhat better moisture to pivot back into the area. However, without substantial lift, showers have been limited to the distant westerns Straits of Florida and the extreme northern end of the Upper Keys. At this hour, we remain mild with most island communities sitting around 80 degrees. We failed to drop below 80 degrees prior to midnight at the Key West Airport and as such tied a daily Warm Minimum Temperature record. As it stands, we are on par to do it again if we do not fall below 80 degrees tonight prior to midnight. To our north lies a broad, weak surface trough across north- central Florida. As the day progresses, this trough will gradually strengthen into a weak frontal boundary and begin slowly sagging southward. Given our position between a fleeting high and this soon to be frontal boundary, the best lift and moisture should sit just north of the island chain today. Therefore, only expecting slight chances for precipitation for island communities, with higher chances across the Southeast Gulf waters. By tonight as lift increases with the incoming boundary, combined with instability may be enough for a few isolated thunderstorms. Marine Issued at 434am EST Wednesday Nov 11 2026 High pressure center northeast of the Bahamas will move further to the east and away from the Florida Keys coastal waters today. This will allow for breezes to gradually slacken through the day. At the same time, a weak surface trough lies across north-central Florida and across the eastern Gulf Basin. This feature will gradually strengthen into a frontal boundary and begin moving south this evening. As it does, expect breezes to initially go light and variable and slowly become more south to southwest towards dawn on Thursday. This first front is a bit weaker than in days prior. With that being said we anticipate freshening west to northwest breezes ahead of and behind the frontal passage. However, the peak strength will be short lived and expecting breezes to slacken Saturday into Sunday. A secondary front will sweep through early next week with the potential for a prolonged period of fresh to strong breezes. NOAA Key West FL Office: Watches - Warnings - Advisories FL...None. GM...None. |
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