126
FNUS52 KKEY 160805
FWFKEY
FIRE WEATHER PLANNING FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
405 AM EDT TUE SEP 16 2025
DISCUSSION
A LINGERING SURFACE BOUNDARY IS SITUATED TO THE SOUTH OF THE
ISLAND CHAIN, AND WILL PULL BACK TOWARD SOUTHERN FLORIDA OVER THE
NEXT DAY OR TWO. RAINFALL CHANCES WILL JUMP DRASTICALLY FROM
AROUND 30 PERCENT TODAY TO 60 PERCENT TONIGHT. AS SHOWERS
INITIALLY POP UP, THUNDERSTORMS ARE NOT EXPECTED DUE TO SOME
LINGERING DRIER AIR ALOFT. HOWEVER, DEEPENING MOISTURE TONIGHT
WILL LEAD TO SOME INCREASE IN THUNDERSTORM CHANCES. OVERALL FIRE
WEATHER CONCERNS ARE AT A MINIMUM.
FLZ076>078-170100-
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-
INCLUDING THE CITIES OF KEY LARGO, MARATHON, AND KEY WEST
405 AM EDT TUE SEP 16 2025
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE PRECIP (%) 30 60 70
CHANCE OF THUNDER (%) 20 50 50
WEATHER TYPE TSTMS TSTMS TSTMS
MAX/MIN TEMP 90 78 88
MIN/MAX RH % 68 89 72
WIND 20FT AM (MPH) E 6 E 9
WIND 20FT PM (MPH) E 6 E 7 NE 8
PRECIP DURATION 2 8 9
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
PRECIP AMOUNT 0.36 0.18 0.30
MIXING HGT(FT-AGL) 3200 1400 2900
TRANSPORT WND (MPH) E 12 E 16 NE 16
DISPERSION INDEX 37 20 43
MAX LVORI 4 4 4
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 70S. NORTHEAST WINDS AROUND
10 MPH.
THURSDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
UPPER 80S. EAST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 70S. NORTHEAST WINDS AROUND
5 MPH.
FRIDAY
PARTLY SUNNY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 70S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 70S. NORTHEAST WINDS AROUND
5 MPH.
SUNDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 70S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
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