Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
746 FXUS62 KKEY 170321 AFDKEY Area Forecast Discussion National Weather Service Key West FL 1021 PM EST Sun Nov 16 2025 ...New DISCUSSION, MARINE, AVIATION... .KEY MESSAGES... -Light to gentle breezes will continue into the early week, variable at times. -Dry air will limit shower development through early this week. -High temperatures will warm to near 80F for much of the work week. && .DISCUSSION... Issued at 1020 PM EST Sun Nov 16 2025 Quiet weather conditions persist along the Keys. KBYX is currently free of precipitable echoes. GOES-19 Nighttime Microphysics imagery shows clear skies over the island chain with some broken lines of fair weather cumulus drifting lazily through our Deep Gulf waters and the eastern Straits of Florida. Light to gentle generally northwesterly breezes are observed along the Reef with lighter breezes on and north of the Keys. As a result, temperatures are already down to near 70 across much of our land areas with more inland areas (like our Big Pine RAWS) locally as low as 60 degrees. No change is expected in the short term moving forward into the start of the week. The surface high in the central Gulf will promote light northwest to north breezes tonight before gradually veering them towards the north to northeast tomorrow as it slides northeast. This evening`s thermodynamic profile from our KKEY 00z sounding remains nearly unchanged from the past 24 hours with an inversion at 975 mb signifying the start of drier air aloft. Near surface dewpoints have slightly increased, but all that will do is cap any ongoing radiational cooling tonight to about near 60 at the lowest. Rain chances will continue to be near nil as well. While winds are a little more westerly than originally expected, the forecast is on track with no notable edits required. && .MARINE... Issued at 1020 PM EST Sun Nov 16 2025 No watches, warnings, or advisories are currently in effect for the coastal waters of the Florida Keys. From synopsis, weak high pressure will continue to promote light to gentle breezes across the Florida Keys coastal waters through Monday. Due to the weak flow, there may be periods of light and variable breezes. Another high pressure system will traverse across the eastern United States early this week while slowly strengthening. This will allow for freshening northeast to east breezes for the middle and latter part of the week. && .AVIATION... (00Z TAFS) Issued at 1020 PM EST Sun Nov 16 2025 VFR and dry conditions will prevail at both EYW and MTH for the rest of the night and into tomorrow. Near surface winds will be light out of the northwest, becoming northerly and increasing to 4 to 9 knots by sunrise. && .PRELIMINARY POINT TEMPS/POPS... Key West 69 79 70 80 / 0 0 0 0 Marathon 67 79 68 80 / 0 0 0 0 && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...JAM Aviation/Nowcasts....JAM 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