327
FXUS62 KKEY 101520
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1120 AM EDT THU SEP 10 2026
..NEW DISCUSSION, MARINE, AVIATION
KEY MESSAGES
- MOISTURE WILL LINGER ACROSS THE REGION THROUGH THE END OF THE
WEEK, SUPPORTING RAIN AND THUNDERSTORM CHANCES.
- THE PRIMARY THREAT FOR ANY STRONGER THUNDERSTORMS WILL BE
DANGEROUS LIGHTNING STRIKES. WHEN THUNDER ROARS, GO INDOORS. IF
ON A BOAT, STAY LOW, OR GO BELOW.
- HEAT INDEX VALUES WILL RANGE FROM 100-108 DEGREES DAILY WITH
LITTLE RELIEF FROM THE MUGGY CONDITIONS OVERNIGHT. KNOW THE
SIGNS OF HEAT STRESS, TAKE FREQUENT BREAKS, AND STAY HYDRATED.
DISCUSSION
ISSUED AT 1119 AM EDT THU SEP 10 2026
SCATTERED SHOWERS AND THUNDERSTORMS HAVE CONTINUED TO PERSIST FOR
A MAJORITY OF THE DAY. SOME OF THESE STORMS HAVE PRODUCED WIND
GUSTS OF NEAR 34 KNOTS RESULTING IN SPECIAL MARINE WARNINGS BEING
ISSUED. OUTSIDE OF CONVECTION SKIES ARE PARTLY TO MOSTLY CLOUDY.
TEMPERATURES ALONG IS THE ISLAND CHAIN ARE NEAR 90 WITH DEWPOINTS
NEAR 80 MAKING FOR A HOT HUMID DAY. ACROSS THE REEF, MARINE
LOCATIONS ARE RECORDING EASTERLY WINDS OF NEAR 10 KNOTS. THE REST
OF TODAY SHOWERS ARE EXPECTED TO START TO DECLINE IN COVERAGE AND
STRENGTH WITH ONLY 30% POPS IN PLACE FOR TONIGHT. NO CHANGES WERE
NEEDED TO THE CURRENT PACKAGE AS THINGS ARE ON THE DOWNWARD TREND
ON RADAR.
MARINE
ISSUED AT 1119 AM EDT THU SEP 10 2026
SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE
NORTHWEST AT 10 TO 15 KNOTS THORUGH THE DISTANT STRAITS SOUTH OF
THE UPPER KEYS THAT CONTINUE TO CONTAIN WIND GUSTS OF NEAR 35
KNOTS REQUIRING SPECIAL MARINE WARNINGS. OUTSIDE OF THAT AREA,
SCATTERED SHOWERS AND THUNDERSTORMS ARE PRODUCING NEAR 25 KNOTS.
RIDGING ACROSS THE SOUTHEASTERN UNITED STATES AND FLORIDA WILL
MAINTAIN GENTLE TO MODERATE EAST TO SOUTHEASTERLY BREEZES. EXPECT
BREEZES TO PEAK IN THE EVENING AND OVERNIGHT WHILE LULLING DURING
THE DAY DURING THE DAY. A SERIES OF LOWER LEVEL MOISTURE SWATHES
WILL SUPPORT PERIODS OF ELEVATED RAIN AND THUNDER CHANCES THROUGH
THE REMAINDER OF THE WEEK.
AVIATION
(15Z TAFS)
ISSUED AT 1119 AM EDT THU SEP 10 2026
VFR CONDITIONS WILL PREVAIL AT BOTH EYW AND MTH THROUGH THE TAF
PERIOD. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE
THROUGH THE COASTAL WATERS AND OCCASIONALLY CROSS THE ISLAND CHAIN
SO VCSH IS INCLUDED. TEMPOS WILL BE ADDED IF DIRECT IMPACTS ARE
EXPECTED. NEAR SURFACE WINDS WILL BE EASTERLY AT NEAR 10 KNOTS.
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...AP
AVIATION/NOWCASTS....AP
DATA ACQUISITION.....AP
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