582
FNUS52 KKEY 140755
FWFKEY
FIRE WEATHER PLANNING FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
355 AM EDT FRI AUG 14 2026
DISCUSSION
A WEAK DISTURBANCE PROGRESSING ACROSS THE FLORIDA KEYS WILL BRING
A LOW-LEVEL MOISTURE SURGE, SUPPORTING ELEVATED RAIN AND THUNDER
CHANCES FOR FRIDAY AFTERNOON THROUGH EARLY SATURDAY EVENING. THE
INCREASED MOISTURE WILL ALSO KEEP AFTERNOON MINIMUM RELATIVE
HUMIDITY VALUES ABOVE 60 PERCENT THROUGH SATURDAY. EAST TO
SOUTHEAST WINDS WILL ALSO INCREASE, PEAKING AT 15 TO 20 MPH FRIDAY
NIGHT AND SATURDAY NIGHT. THE ELEVATED TRANSPORT WINDS WILL
SUPPORT EFFICIENT BOUNDARY LAYER DISPERSION FOR THE NEXT SEVERAL
DAYS.
FLZ076>078-150230-
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-
INCLUDING THE CITIES OF KEY LARGO, MARATHON, AND KEY WEST
355 AM EDT FRI AUG 14 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
CHANCE PRECIP (%) 30 50 40
CHANCE OF THUNDER (%) 20 50 40
WEATHER TYPE TSTMS TSTMS TSTMS
MAX/MIN TEMP 91 81 91
MIN/MAX RH % 64 89 68
WIND 20FT AM (MPH) E 5 SE 6
WIND 20FT PM (MPH) E 6 E 7 E 6
PRECIP DURATION 2 2 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
PRECIP AMOUNT 0.01 0.03 0.01
MIXING HGT(FT-AGL) 3300 1100 3400
TRANSPORT WND (MPH) E 10 E 17 E 12
DISPERSION INDEX 34 12 45
MAX LVORI 4 4 4
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 80S. EAST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 90. EAST WINDS AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 80S. EAST WINDS
AROUND 10 MPH.
MONDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 90S. EAST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 80S. EAST WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 90S. NORTHEAST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 80S. NORTH WINDS
AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS
AROUND 90. EAST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS IN THE
LOWER 90S. EAST WINDS AROUND 5 MPH.
BT
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