Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
890 FXUS62 KKEY 110238 AFDKEY Area Forecast Discussion National Weather Service Key West FL 938 PM EST Wed Dec 10 2025 ...New DISCUSSION, MARINE, AVIATION... .KEY MESSAGES... -Drier conditions have become widespread across the forecast area. -Northwest to north breezes will slightly freshen overnight before gradually slackening as we head into the end of the week. -The next opportunity for showers is sometime over the Saturday to Sunday timeframe. && .DISCUSSION... Issued at 933 PM EST Wed Dec 10 2025 Weather conditions are looking a bit different this evening when compared to 24 hours ago! The only showers detected by our KBYX radar are outside of our forecast area to our south, along and near the northern Cuba shoreline. The automated observation sites at both Key West and Marathon International Airports have intermittently reported broken to overcast skies around 1000 feet above ground level, but we cant see it on satellite due to obstruction from mid and high level clouds. The 00Z sounding from the balloon launch this evening shows a messy vertical profile with multiple layers dry air and moisture. It depicts the very thin layer of saturation near 1000 ft, where those broken and overcast skies are being reported, as well as the layer of mid and high level clouds aloft. There is also a fair amount of inhibition throughout the profile, due in part to being post-frontal. The current forecast package advertises partly cloudy skies through the night, and this is supported from current satellite trends and sounding data. Land observations along the island chain are reporting temperatures in the lower 70s, but dew points are in the mid to upper 60s. The advection of cooler air from the north may be efficient enough to bring temps below the 70 degree mark. No updates or changes are needed to the forecast package at this time. && .MARINE... Issued at 933 PM EST Wed Dec 10 2025 No watches, warnings, or advisories are currently in effect for the Florida Keys waters. From synopsis, northwest to north breezes will continue to freshen overnight as high pressure centered over northern Florida interacts with a stationary front draped across the distant Straits of Florida. As high pressure drifts eastward over the next several days and eventually into the western North Atlantic, winds will clock around to the north to northeast, then eventually northeast to east. The next frontal boundary is progged to push through the Florida Keys marine zones on Sunday night, with fresh to strong northeasterly breezes expected in the wake of the frontal passage. && .AVIATION... (00Z TAFS) Issued at 933 PM EST Wed Dec 10 2025 Flight categories at both terminals will continue to fluctuate between MVFR and VFR due to a broken deck near FL010 and FL015. Opting to lean on persistent observations, and will maintain prevailing VFR conditions. Surface winds will be out of the northwest to north near 10 knots, but crosswind concerns are low due to the light to gentle nature of these winds. Dry weather will prevail at both terminals. && .PRELIMINARY POINT TEMPS/POPS... Key West 68 77 68 79 / 10 0 0 10 Marathon 67 75 67 77 / 10 0 0 10 && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...DP Aviation/Nowcasts....DP Data Acquisition.....DR Visit us on the web at weather.gov/key Follow us on Facebook and Twitter at: www.facebook.com/nwskeywest www.twitter.com/nwskeywest