537
FNUS52 KKEY 231001
FWFKEY
FIRE WEATHER PLANNING FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
501 AM EST MON FEB 23 2026
...RED FLAG WARNING IN EFFECT FOR THE UPPER KEYS FROM 10 AM THIS
MORNING TO 5 PM EST THIS AFTERNOON...
DISCUSSION
COOL, DRY, AND WINDY CONDITIONS WILL PERSIST OVER THE NEXT COUPLE
OF DAYS. WINDS ARE EXPECTED TO LULL MODESTLY THIS AFTERNOON,
PARTICULARLY IN THE UPPER KEYS. HOWEVER, RELATIVE HUMIDITY IS
EXPECTED TO SLIP BELOW 35% DURING THE DAY. CONSEQUENTLY A RED FLAG
WARNING HAS BEEN RAISED TODAY FOR THE UPPER KEYS. RELATIVE
HUMIDITY IS EXPECTED TO BE HIGHER ON TUESDAY, DUE TO TEMPERATURES
EXPECTED TO BE SLIGHTLY COOLER. IN ADDITION, BREEZES ARE
ANTICIPATED TO DIMINISH SIGNIFICANTLY.
FLZ076-240045-
MONROE UPPER KEYS-
INCLUDING THE CITY OF KEY LARGO
501 AM EST MON FEB 23 2026
...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 5 PM EST
THIS AFTERNOON...
TODAY TONIGHT TUE
CLOUD COVER CLEAR MCLEAR CLEAR
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
WEATHER TYPE NONE NONE NONE
MAX/MIN TEMP 64 43 63
MIN/MAX RH % 29 84 37
WIND 20FT AM (MPH) N 17 N 12
WIND 20FT PM (MPH) NW 14 NW 14 N 7
PRECIP DURATION
PRECIP BEGIN
PRECIP END
PRECIP AMOUNT 0.00 0.00 0.00
MIXING HGT(FT-AGL) 3600 1200 2700
TRANSPORT WND (MPH) NW 18 NW 20 NE 8
DISPERSION INDEX 49 22 31
MAX LVORI 1 3 3
REMARKS...NONE.
FLZ077-078-240045-
MONROE MIDDLE KEYS-MONROE LOWER KEYS-
INCLUDING THE CITIES OF MARATHON AND KEY WEST
501 AM EST MON FEB 23 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR CLEAR
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
WEATHER TYPE NONE NONE NONE
MAX/MIN TEMP 63 49 64
MIN/MAX RH % 49 84 40
WIND 20FT AM (MPH) N 19 N 14
WIND 20FT PM (MPH) NW 16 NW 17 N 8
PRECIP DURATION
PRECIP BEGIN
PRECIP END
PRECIP AMOUNT 0.00 0.00 0.00
MIXING HGT(FT-AGL) 3000 1800 2600
TRANSPORT WND (MPH) NW 25 N 24 N 15
DISPERSION INDEX 63 34 36
MAX LVORI 1 3 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHEAST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. WARMER. LOWS IN THE MID 60S.
EAST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 70S. SOUTHEAST WINDS AROUND 10 MPH.
FRIDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS IN
THE UPPER 70S. SOUTHEAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 70S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS
AROUND 80. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS IN
THE UPPER 70S. EAST WINDS AROUND 5 MPH.
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