Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
498 FXUS62 KKEY 160227 AFDKEY Area Forecast Discussion National Weather Service Key West FL 1027 PM EDT Thu Aug 15 2024 ...New DISCUSSION, MARINE, AVIATION... .DISCUSSION... Issued at 900 PM EDT Thu Aug 15 2024 Currently - A loose pressure field spans the Keys area this evening due to the combination of a ridge along the Atlantic Coast and Hurricane Ernesto centered northeast of the Bahamas. The environment is seasonably moist and unstable. This evenings sounding indicated a precipitable water right around two inches with no inhibition and a very wet boundary layer. Day time heating and the weak wind field resulted in mainland outflow boundaries being the main mode of convection through the afternoon and evening. Currently, activity is isolated, but with a considerable concentration over the Middle Keys and adjacent waters. Short Term Update - Surface winds will remain light and varying through the overnight period as no significant shift in the synoptic scale drivers are anticipated. The environment will remain moist, unstable, and uncapped. This along with current radar trends justify maintaining at least low chance PoPs for the overnight period. The weak flow should let temperatures drift down into the lower 80s while dew points will remain in the mid to upper 70s. && .MARINE... Issued at 900 PM EDT Thu Aug 15 2024 A rather flat pressure pattern will persist across Keys waters through the overnight period. As a result, winds will be light and variable. No major changes made in the evening marine update. && .AVIATION... (00Z TAFS) Issued at 900 PM EDT Thu Aug 15 2024 VFR conditions will prevail at the island terminals overnight. With that said, there will be a chance for brief spells of sub VFR conditions due to isolated to scattered showers and thunderstorms across the broader area. Surface winds will be light and variable. && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...11 Aviation/Nowcasts....11 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