Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
326 FXUS62 KKEY 270238 AFDKEY Area Forecast Discussion National Weather Service Key West FL 1038 PM EDT Sun May 26 2024 ...New DISCUSSION, MARINE, AVIATION... .DISCUSSION... Issued at 1030 PM EDT Sun May 26 2024 Currently - Deep layered ridging remains dominant in the Keys. An Atlantic surface ridge stretches westward across the Keys resulting in light mostly southeasterly breezes. There is some initial variability due to the lingering effects of mainland day time heating. Aloft, ridging continues to reach northeastward through the Gulf of Mexico into Florida. This is contributing quite a dry column. This evenings sounding indicated a precipitable water of only 1.09 inches with considerable dry air through the lower levels along with some inhibition. This stability is likely being exacerbated by Cuban effects due to a southerly component in the steering flow. Very little in the way of convective activity or low level clouds have been detected in radar and satellite imagery. There has been ample anomalous propagation over Cuba and the Straits. Warm conditions remain in place with temperatures in the lower to mid 80s and dew points in the lower 70s. Short Term Update - Atlantic ridging will remain across South Florida and the Keys through the overnight period while ridging remains in place aloft. This will maintain light broadly southeasterly breezes and stable conditions. Forecast soundings suggest deep layered moisture will increase slightly, but given the persistent stable layers, lack of instability, and lower level lift, it is safe to keep rain chances out of tonight`s forecast. Expect overnight lows to range broadly near 80 with dew points likely climbing a point or two. && .MARINE... Issued at 1030 PM EDT Sun May 26 2024 An Atlantic ridge stretching across South Florida and the Keys will maintain light broadly southeasterly breezes on Keys waters overnight. Expect some initial variability due to residual mainland day time heating. && .AVIATION... (00Z TAFS) Issued at 1030 PM EDT Sun May 26 2024 VFR conditions will prevail at the island terminals overnight. Surface winds will be light and broadly southeasterly. && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...11 Aviation/Nowcasts....11 Data Acquisition.....JAM Visit us on the web at weather.gov/key Follow us on Facebook and Twitter at: www.facebook.com/nwskeywest www.twitter.com/nwskeywest