Gulf of Mexico from Seven Mile Bridge to Halfmoon Shoal Marine Forecast
| Overnight...East Winds Near 10 Knots. Seas 1 To 2 Feet. Nearshore Waters A Light Chop. A Slight Chance Of Showers. |
| Wednesday...East To Southeast Winds 5 To 10 Knots, Becoming Southeast. Seas Around 1 Foot. Nearshore Waters Smooth To A Light Chop. |
| Wednesday Night...Southeast Winds 5 To 10 Knots, Becoming Southeast To South. Seas Around 1 Foot. Nearshore Waters Smooth To A Light Chop. |
| Thursday...Southeast To South Winds 5 To 10 Knots, Becoming South. Seas Around 1 Foot. Nearshore Waters Smooth To A Light Chop. |
| Thursday Night...West To Northwest Winds Near 5 Knots, Becoming Southeast After Midnight. Seas 1 Foot Or Less. Nearshore Waters Smooth. |
| Friday...Southeast To South Winds 5 To 10 Knots. Seas Around 1 Foot. Nearshore Waters Smooth To A Light Chop. |
| Friday Night...East To Southeast Winds 5 To 10 Knots, Becoming Southeast To South And Increasing To Near 15 Knots After Midnight. Seas Around 1 Foot, Building 1 To 2 Feet, Except Building To 2 To 3 Feet West Of The Marquesas Keys. Nearshore Waters Smooth To A Light Chop, Becoming A Moderate Chop. |
| Saturday...Southeast To South Winds Near 15 Knots, Becoming South And Decreasing To 5 To 10 Knots. Seas 1 To 2 Feet, Subsiding To Around 1 Foot. West Of The Marquesas Keys, Seas 2 To 3 Feet, Subsiding To 1 To 2 Feet. Nearshore Waters A Moderate Chop, Becoming Smooth To A Light Chop. |
| Saturday Night...Southeast Winds 5 To 10 Knots, Becoming South And Increasing To 10 To 15 Knots. Seas Around 1 Foot, Except Around 2 Feet West Of The Marquesas Keys. Nearshore Waters Smooth To A Light Chop, Becoming A Light To Moderate Chop. A Slight Chance Of Showers. |
| Sunday...Southwest To West Winds 5 To 10 Knots, Becoming West To Northwest. Seas 1 To 2 Feet. Nearshore Waters Smooth To A Light Chop. A Slight Chance Of Showers And Thunderstorms. |
| Sunday Night...Northwest Winds Near 10 Knots. Seas 1 To 2 Feet. Nearshore Waters A Light Chop. A Chance Of Shower And Thunderstorms. |
| Area Forecast Discussion National Weather Service Key West FL 1106pm EDT Tuesday April 28 2026 Issued at 941pm EDT Tuesday April 28 2026 Ridging in place across the area has kept weather conditions mostly unremarkable through this evening shift excluding the past couple of hours. Around 6 PM, an area of showers pushed off of the Cape Sable area, and tracked over the Bayside and Gulfside waters. Even though the 00Z KKEY sounding had a significant amount of mid and upper level dry air, the neighboring KMFL sounding showed some deeper moisture. It's entirely possible that our radiosonde sampled an environment that was unrepresentative of the environment where the showers were progressing through. The wind profile from our sounding showed winds backing from the southeast to the northeast in the lower levels, which would place the radiosonde well to our west and away from these showers. The current radar loop from our KBYX radar shows these showers are still progressing generally westward along a disorganized line stretching from Cosgrove Shoal Light to Cape Romano. There isn't really anything in the way of this activity. Satellite derived PWATs (Precipitable Waters) show nearly an inch of water up to 700mb across the area, and we know that these showers have already been able to work with this. With wind direction varying between northeast to southwest, there may also be an element of convergence across the area. This may just be enough to justify the inherited 10 percent Probability of Precipitation for tonight. Outside of this cluster of showers, calm weather conditions are expected to continue as depicted in the forecast. No changes or updates are needed at this time. Marine Issued at 941pm EDT Tuesday April 28 2026 There are no watches, warnings, or advisories in effect for the Florida Keys local waters. From synopsis, high pressure centered over the Mid-Atlantic will continue to promote gentle to moderate northeast to east breezes through tonight. As the high slides into the western North Atlantic through mid-week, breezes will gradually veer to the east to southeast. Multiple low pressure systems are expected to traverse across the eastern U.S. mid to late week. This combined with weak low pressure across the western North Atlantic will result in a period of mainly southeast to south breezes. NOAA Key West FL Office: Watches - Warnings - Advisories FL...None. GM...None. |
Key West FL Radar
Southeast Radar