Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
602 FXUS62 KKEY 281529 AFDKEY Area Forecast Discussion National Weather Service Key West FL 1129 AM EDT Thu Aug 28 2025 ...New DISCUSSION, MARINE, AVIATION... .DISCUSSION... Issued at 1128 AM EDT Thu Aug 28 2025 KAMX radar has been detecting widely scattered showers and a few thunderstorms drifting across the Keys and adjacent coastal waters all morning. This tracks well with the view from this morning`s 12Z KEY sounding, which shows a near-average PWat of 1.89 inches, plenty of CAPE, and little if any inhibition. GOES satellite imagery depicts mainly Cu fields, particularly over the Florida Straits, and some higher debris clouds from earlier convection, along with some newer storms near Cay Sal. With the 40% PoPs in the forecast for this afternoon and 50% for tonight, no changes are needed given the current state. Late-morning temperatures are once again ranging from 85-90F, with generally light NE to SE breezes, so this is largely developing into a typical (but wet) Keys August day. && .MARINE... Issued at 1128 AM EDT Thu Aug 28 2025 There are currently no watches, warnings, or advisories in effect across the Florida Keys coastal waters. From synopsis, an early season Canadian high pressure system will continue to traverse the eastern United States over the next few days. As it does, it will enhance the pressure gradient slightly across the Florida Keys marine zones. As a result, expect light to gentle, except gentle to moderate breezes across the Straits of Florida through tonight. As the high moves into the Atlantic late week and over the weekend, breezes will slacken. Increased moisture will support higher shower and thunderstorm coverage through early next week. && .AVIATION... (15Z TAFS) Issued at 1128 AM EDT Thu Aug 28 2025 Despite a relative lull in shower activity near the terminals at the moment, opted to keep VCSH in the TAFs through the period given ample moisture and instability keeping shower chances elevated. Otherwise, VFR conditions will prevail at the terminals. Surface winds will remain generally light from the east. && .PRELIMINARY POINT TEMPS/POPS... Key West 90 82 90 81 / 30 50 40 40 Marathon 91 82 91 81 / 40 50 40 40 && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...MC Aviation/Nowcasts....MC Data Acquisition.....MC Visit us on the web at weather.gov/key Follow us on Facebook and Twitter at: www.facebook.com/nwskeywest www.twitter.com/nwskeywest