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.

$$