595
FXUS62 KKEY 190355
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1055 PM EST THU DEC 18 2025
..NEW DISCUSSION, MARINE, AVIATION
KEY MESSAGES
-SOUTHEAST TO SOUTH BREEZES WILL VEER TOWARDS THE SOUTH AND
SOUTHWEST OVERNIGHT AND SLACKEN. LIGHT AND VARIABLE WINDS ARE
POSSIBLE FOR THE ISLAND CHAIN AND NEARSHORE WATERS NORTH OF THE
ISLAND CHAIN.
-LIGHT WINDS AND A MOIST AIR MASS COULD PROMOTE PATCHY FOG FOR THE
ISLAND CHAIN BUT MORE LIKELY ACROSS THE NEARSHORE WATERS NORTH OF
THE ISLAND CHAIN.
-RAIN CHANCES HAVE INCREASED THIS EVENING, WITH THUNDER ALSO
POSSIBLE TONIGHT AHEAD OF A WEAK FRONTAL PASSAGE.
-OUTSIDE OF MODESTLY FRESHENED BREEZES, MINIMAL CHANGES TO THE
SEASONABLY WARM CONDITIONS ARE EXPECTED IN THE WAKE OF THE FRONT.
DISCUSSION
ISSUED AT 1055 PM EST THU DEC 18 2025
KBYX RADAR HAS BEEN BUSY TONIGHT. EARLIER IN THE NIGHT SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS WERE SEEN IN THE SOUTHEASTERN
GULF. RADAR ACTIVITY HAS SLIGHTLY DIMINISHED SINCE THEN, CURRENTLY
DETECTING LIGHT SHOWERS IN THE STRAITS SOUTH OF THE UPPER KEYS.
TEMPERATURES ALONG THE ISLAND CHAIN ARE IN THE MID 70S WITH MOSTLY
CLOUDY SKIES SEEN ON NIGHTTIME MICROPHYSICS. ALONG THE REEF,
WINDS ARE 5 TO 10 KNOTS. FOR THE REMAINDER OF THE NIGHT, SCATTERED
SHOWERS WITH A FEW THUNDERSTORMS ARE POSSIBLE AS A FRONT STARTS
TO APPROACH OUR WATERS. WINDS WILL REMAIN LIGHT AND BECOME
VARIABLE LATE TONIGHT. IN THE EARLY MORNING HOURS, SOME PATCHY FOG
IS POSSIBLE IN THE GULF WATERS. NO CHANGES WERE NECESSARY TO THIS
UPDATE PACKAGE.
MARINE
ISSUED AT 1055 PM EST THU DEC 18 2025
NO WATCHES, WARNINGS, OR ADVISORIES ARE CURRENTLY IN EFFECT FOR
THE FLORIDA KEYS WATERS. FROM SYNOPSIS, GENTLE TO MODERATE EAST
TO SOUTHEAST BREEZES WILL SLACKEN AS HIGH PRESSURE SLIDES FURTHER
EASTWARD OFF THE EASTERN SEABOARD INTO THE CENTRAL NORTH ATLANTIC.
A WEAK FRONT WILL PUSH THROUGH THE FLORIDA KEYS COASTAL WATERS ON
FRIDAY, WITH MODESTLY FRESHENED BREEZES EXPECTED FOR THE WEEKEND
IN ITS WAKE. ANOTHER HIGH BUILDING OVER THE EASTERN SEABOARD WILL
SUPPORT FRESH TO STRONG BREEZES FOR EARLY NEXT WEEK.
AVIATION
(00Z TAFS)
ISSUED AT 1055 PM EST THU DEC 18 2025
VFR CONDITIONS WILL PREVAIL AT BOTH EYW AND MTH THROUGH THE TAF
PERIOD. LIGHT SHOWERS COULD POSSIBLY BRUSH EITHER TERMINAL BUT LOW
CONFIDENCE IN TIMING AND LOCATION WILL LEAVE MENTION OF VCSH
OUT THE TIME BEING. NEAR SURFACE WINDS WILL BE LIGHT AND VARIABLE
THROUGH SUNRISE.
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...AP
AVIATION/NOWCASTS....AP
DATA ACQUISITION.....DP
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