019
FNUS52 KKEY 210825
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
425 AM EDT Mon Jul 21 2025

.Discussion...
Below normal rain chances are expected today and tonight as dry
air remains across the Keys. Increasing moisture heading into
Tuesday continuing through the middle of the week will result in
rain and thunder chances becoming above normal for this time of
the year. Weak Atlantic ridging remains in place through
approximately mid week resulting in mainly light to gentle
easterly breezes, occasionally becoming variable. Min RH values
are expected to be in the mid 60s percent today and Tuesday with
decent RH recovery overnight into the lower 80s percent.

FLZ076>078-220115-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
425 AM EDT Mon Jul 21 2025

                      Today        Tonight      Tue

Cloud Cover           Mclear       Mclear       Pcldy
Chance Precip (%)     10           20           40
Chance of Thunder (%) 10           20           20
Weather Type          Tstms        Tstms        Tstms
Max/Min Temp          91           82           91
Min/Max RH %          65           83           65
Wind 20ft AM (mph)    Lgt/Var                   Lgt/Var
Wind 20ft PM (mph)    Lgt/Var      Lgt/Var      Lgt/Var
Precip Duration       1            1            2
Precip Begin          6 AM         Continuing   Continuing
Precip End            Continuing   Continuing   Continuing
Precip Amount         0.03         0.00         0.00
Mixing Hgt(ft-agl)    3000         1700         2900
Transport Wnd (mph)   E  6         E  7         SW  3
Dispersion Index      22           4            13
Max LVORI             4            5            4

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 80s. Northeast
winds around 5 mph.
.WEDNESDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 90. Southeast winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 80s. Southeast
winds around 5 mph.
.THURSDAY...Sunny with a chance of showers and a slight chance of
thunderstorms. Highs around 90. Southeast winds around 5 mph.
.THURSDAY NIGHT...Mostly clear with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 80s. East winds
around 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. Southeast winds around
10 mph.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the lower 80s. East winds around 10 mph.
.SATURDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 90. East winds around 10 mph.
.SATURDAY NIGHT...Mostly clear with a slight chance of showers
and thunderstorms. Lows in the lower 80s. East winds around
10 mph.
.SUNDAY...Sunny with a slight chance of showers and
thunderstorms. Highs in the lower 90s. East winds around 10 mph.

$$

MJV