Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
577 FXUS62 KKEY 070832 AFDKEY Area Forecast Discussion National Weather Service Key West FL 432 AM EDT Sat Jun 7 2025 ...New DISCUSSION, MARINE, AVIATION... .DISCUSSION... Issued at 430 AM EDT Sat Jun 7 2025 A quiet night is ongoing across the Florida Keys. KBYX radar is not detecting any shower activity and GOES East Nighttime Microphysics shows mostly clear skies with a few fair weather cumulus clouds mostly over the marine area. However, some of these are occasionally moving over the Island Chain. Temperatures along the Island Chain are near 80 degrees to the lower 80s. Big Pine Key has dipped into the mid 70s where some radiational cooling has taken place due to light winds. Dew points are in the mid 70s. Strong surface Atlantic ridging remains the name of the game with the center of this high located near the Azores. The western periphery of this high extends westward into Florida and into the Gulf. Due to this, marine platforms around the Keys are observing east to southeast breezes 5 to 10 knots and Island Chain communities are observing near 10 mph. .FORECAST... Mean layer ridging will remain the name of the game through the forecast period. Light to gentle east to southeast breezes will continue through the weekend. Breezes will become slightly stronger next week as the high near the Azores shifts more to the central North Atlantic. This will promote gentle to moderate breezes through the early to middle part of the week. There are hints for the latter half of the week for breezes to potentially freshen further with moderate to fresh breezes possible leading to breezy conditions. Moisture will be rather scarce at least until early next week. The Saharan Air Layer (SAL) will continue to remain quite prevalent across Florida and the Keys through at least Monday leading to near nil rain chances for the Keys today and tonight. The SAL begins to slowly abate Sunday and Sunday night which will lead to a slight uptick in moisture. As a result, slight chances (10%) come back into the forecast for Sunday and Sunday night. Moisture continues to become a bit deeper as we progress through the early to middle part of the week resulting in increasing rain chances. Monday and Monday night remains slight at 20% before increasing for Tuesday and Tuesday night to 30% and then to 40% for mid to late week. Temperatures will remain near seasonable conditions for much of the week with highs in the upper 80s and lows in the lower 80s. Humidity will remain seasonable as well. && .MARINE... Issued at 430 AM EDT Sat Jun 7 2025 There are currently no watches, warnings, or advisories in effect across the Florida Keys coastal waters. From synopsis, saharan dust will continue to linger in the air, and will promote lower rain and thunder chances through the weekend. The Azores high will dominate the pattern through the forecast period with light to gentle east to southeast breezes through the weekend. Early to mid next week, the Azores high will shift to the southwest more over the central North Atlantic which will encourage gentle to moderate east to southeast breezes. && .AVIATION... (06Z TAFS) Issued at 430 AM EDT Sat Jun 7 2025 VFR conditions are expected through the TAF period with gentle east to southeast breezes. Saharan Air Layer will remain in place aloft but will not affect CIGs/VIS. && .CLIMATE... In 2017, the daily record rainfall of 4.39" was recorded in Key West. Precipitation records date back to 1871. && .PRELIMINARY POINT TEMPS/POPS... Key West 87 81 88 81 / 10 0 0 0 Marathon 88 81 89 81 / 10 0 10 10 && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...MJV Aviation/Nowcasts....LIW Data Acquisition.....LIW Visit us on the web at weather.gov/key Follow us on Facebook and Twitter at: www.facebook.com/nwskeywest www.twitter.com/nwskeywest