Florida Bay including Blackwater and Buttonwood Sounds Marine Forecast
| Overnight...East Winds Near 10 Knots. Bay Waters A Light Chop. A Slight Chance Of Showers. |
| Wednesday...East To Southeast Winds Near 10 Knots, Becoming Southeast To South. Bay Waters A Light Chop. |
| Wednesday Night...Southeast To South Winds 5 To 10 Knots. Bay Waters Smooth To A Light Chop. A Slight Chance Of Showers. |
| Thursday...South Winds Near 5 Knots, Becoming South To Southwest And Increasing To Near 10 Knots In The Afternoon. Bay Waters Smooth, Becoming A Light Chop. |
| Thursday Night...South To Southwest Winds 5 To 10 Knots, Becoming South And Decreasing To Near 5 Knots. Bay Waters Smooth To A Light Chop, Becoming Smooth. |
| Friday...South Winds 5 To 10 Knots. Bay Waters Smooth To A Light Chop. |
| Friday Night...Southeast To South Winds 5 To 10 Knots, Increasing To 10 To 15 Knots After Midnight. Bay Waters Smooth To A Light Chop, Becoming A Light To Moderate Chop. |
| Saturday...Southeast To South Winds Near 15 Knots, Becoming South And Decreasing To Near 10 Knots. Bay Waters A Moderate Chop, Becoming A Light Chop. |
| Saturday Night...Southeast To South Winds 5 To 10 Knots. Bay Waters Smooth To A Light Chop. A Slight Chance Of Showers. |
| Sunday...Southwest To West Winds 5 To 10 Knots. Bay Waters Smooth To A Light Chop. A Slight Chance Of Showers And Thunderstorms. |
| Sunday Night...Northwest Winds 10 To 15 Knots. Bay Waters A Light To Moderate Chop. A Chance Of Thunderstorms. A Chance Of Showers. |
| 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
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