435
FXUS62 KKEY 120809
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
409 AM EDT SUN APR 12 2026
..NEW DISCUSSION, MARINE, AVIATION
KEY MESSAGES
- A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR ALL FLORIDA KEYS
COASTAL WATERS. BREEZY TO WINDY CONDITIONS WILL PERSIST FOR
SEVERAL MORE DAYS.
- LITTLE TO NO MEASURABLE RAIN WILL MAINTAIN CONTINUED MODERATE
DROUGHT CONDITIONS IN THE FLORIDA KEYS FOR THE NEXT WEEK.
- TEMPERATURES WILL REMAIN SEASONABLY WARM, WITH HIGHS IN THE
LOWER 80S, AND LOWS IN THE LOWER 70S.
DISCUSSION
ISSUED AT 410 AM EDT SUN APR 12 2026
THE RATHER STAGNANT SYNOPTIC PATTERN PERSISTS ACROSS THE FLORIDA
KEYS AT THIS EARLY SUNDAY MORNING. SURFACE ANALYSIS PLACES A
STRONG, 1032 MB HIGH PRESSURE SYSTEM CENTERED IN THE VICINITY OF
EASTERN NEW YORK SLOWLY SLIDING EASTWARD. FURTHER ALOFT, WATER
VAPOR IMAGERY DEPICTS ANTICYLONIC FLOW ASSOCIATED WITH A STRONG
RIDGE EXTENDING FROM CENTRAL AMERICA EASTWARD TO THE BAHAMAS. KBYX
RADAR HAS ONLY DETECTED A FEW ISOLATED SPRINKLES ALL NIGHT,
MAINLY IN THE FAVORED WATERS SOUTH OF THE ISLAND CHAIN. WINDY
CONDITIONS ASSOCIATED WITH THE AFOREMENTIONED SURFACE HIGH PERSIST
ACROSS THE KEYS AND THE ADJACENT MARINE ZONES, WITH TEMPERATURES
GENERALLY IN THE LOWER 70S.
GLOBAL MEAN ENSEMBLE PRODUCTS DEPICT VERY LITTLE CHANGE TO THE
OVERALL SYNOPTIC PATTERN FOR THE NEXT SEVERAL DAYS. THE HIGH WILL
SLOWLY SLIDE EASTWARD AND FLUCTUATE IN INTENSITY. ALTHOUGH THERE
WILL BE BOUTS OF PEAKS AND LULLS IN THE WINDS OWED TO MESOSCALE
DAILY LAND HEATING AND COOLING, GENERALLY BREEZY TO WINDY
CONDITIONS WILL CONTINUE THROUGH AT LEAST WEDNESDAY. FORECAST
SOUNDINGS DEPICT A WELL-MIXED BOUNDARY LAYER WITH A DECENT
MOISTURE PROFILE UP TO AROUND 900 MB, BUT FORMIDABLE DRY AIR
ALOFT. WHILE A PASSING SHOWER CANNOT BE RULED OUT IN THE
EASTERLIES OVER THE WARM WATERS, MOST ISLAND COMMUNITIES WILL
LIKELY MEASURE LITTLE IN THE WAY OF TOTAL RAINFALL THROUGH THIS
PERIOD. AS THE HIGH APPROACHES THE CENTRAL AND EASTERN NORTH
ATLANTIC LATE IN THE WEEK, WINDS WILL MODESTLY SLACKEN. OTHER THAN
THAT, CONFIDENCE REMAINS HIGH IN A MAINLY DRY FORECAST THROUGH
LATE IN THE WORK WEEK INTO THE WEEKEND, AND SEASONABLY WARM
TEMPERATURES CONTINUING.
MARINE
ISSUED AT 410 AM EDT SUN APR 12 2026
A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR ALL FLORIDA KEYS
MARINE ZONES. FROM SYNOPSIS, A STRONG HIGH PRESSURE SYSTEM PUSHING
OFF THE EASTERN SEABOARD WILL MAINTAIN FRESH TO STRONG NORTHEAST
TO EAST BREEZES THROUGH EARLY NEXT WEEK. AS IS TYPICAL IN THIS
PATTERN FOR APRIL, PASSING LIGHT FAST-MOVING SHOWERS CANNOT BE
RULED OUT, ESPECIALLY IN THE OVERNIGHT PERIODS. AS THE HIGH MOVES
FURTHER EASTWARD AND SLOWLY WEAKENS, EASTERLY BREEZES WILL
MODESTLY SLACKEN BY THURSDAY.
AVIATION
(06Z TAFS)
ISSUED AT 410 AM EDT SUN APR 12 2026
THROUGH 12/06Z, PREVAILING VFR CONDITIONS WILL CONTINUE AT BOTH
EYW AND MTH ISLAND TERMINALS, WITH ONLY A PASSING ISOLATED
POSSIBLE VICINITY SHOWER HAVING MINIMAL IMPACTS TO CEILINGS OR
VISIBILITIES.
PRELIMINARY POINT TEMPS/POPS
KEY WEST 82 72 82 73 / 10 10 10 10
MARATHON 80 73 81 73 / 10 10 10 10
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...SMALL CRAFT ADVISORY UNTIL 5 PM EDT THIS AFTERNOON FOR
GMZ031>035-042>044-052>055-072>075.
PUBLIC/MARINE/FIRE...BT
AVIATION/NOWCASTS....BT
DATA ACQUISITION.....BT
VISIT US ON THE WEB AT WEATHER.GOV/KEY
FOLLOW US ON FACEBOOK AND TWITTER AT:
WWW.FACEBOOK.COM/NWSKEYWEST
WWW.TWITTER.COM/NWSKEYWEST
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page