573
FNUS52 KKEY 120759
FWFKEY
FIRE WEATHER PLANNING FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
359 AM EDT WED AUG 12 2026
...DISPERSION INDICES LESS THAN 20 WILL BE POSSIBLE ACROSS THE
FLORIDA KEYS ON WEDNESDAY AND THURSDAY AFTERNOONS...
DISCUSSION
LOW MEASURABLE RAIN AND THUNDER CHANCES WILL CONTINUE FOR THE
NEXT SEVERAL DAYS ACROSS THE FLORIDA KEYS, WITH ANY ACTIVITY
LARGELY LIMITED TO AFTERNOON BROKEN ISLAND CLOUD LINES OR
CONVECTION MOVING OFF THE SOUTH FLORIDA MAINLAND. DESPITE THE
GENERALLY DRY CONDITIONS, AFTERNOON MINIMUM RH VALUES ARE EXPECTED
TO REMAIN ABOVE 60 PERCENT. LIGHT EASTERLY TRANSPORT WINDS WILL
SUPPORT LOW DISPERSION INDICES THROUGH THURSDAY.
FLZ076>078-130245-
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-
INCLUDING THE CITIES OF KEY LARGO, MARATHON, AND KEY WEST
359 AM EDT WED AUG 12 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR PCLDY MCLEAR
CHANCE PRECIP (%) 10 10 10
CHANCE OF THUNDER (%) 10 0 10
WEATHER TYPE TSTMS SHOWERS TSTMS
MAX/MIN TEMP 91 82 91
MIN/MAX RH % 62 83 62
WIND 20FT AM (MPH) LGT/VAR LGT/VAR
WIND 20FT PM (MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP DURATION 1 1 1
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
PRECIP AMOUNT 0.02 0.00 0.00
MIXING HGT(FT-AGL) 3200 1600 3200
TRANSPORT WND (MPH) E 6 SE 5 E 6
DISPERSION INDEX 19 3 19
MAX LVORI 4 5 4
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY
SUNNY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS
IN THE LOWER 90S. EAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 80S. EAST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 90. EAST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 80S. EAST WINDS AROUND 10 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. HIGHS AROUND 90. EAST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 80S. NORTHEAST
WINDS AROUND 5 MPH.
TUESDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS AROUND
90. NORTHEAST WINDS AROUND 5 MPH.
BT
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