648
FNUS52 KKEY 030852
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
452 AM EDT Wed Sep 3 2025

.Discussion...
A stationary front lies just to our north, keeping the Keys in an
usually moist westerly flow. The front is in place to promote a
prolonged and potentially heavy rainfall event that could last
until the end of the week. Rain chances will be well above normal
through the next several days. This moist air mass will help to
keep afternoon minimum relative humidity values near 70 percent
and recovering into the 90 percentile overnight.


FLZ076>078-040030-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
452 AM EDT Wed Sep 3 2025

                      Today        Tonight      Thu

Cloud Cover           Pcldy        Pcldy        Pcldy
Chance Precip (%)     80           80           80
Chance of Thunder (%) 50           50           50
Weather Type          Tstms        Tstms        Tstms
Max/Min Temp          90           78           90
Min/Max RH %          68           93           73
Wind 20ft AM (mph)    W  6                      W  9
Wind 20ft PM (mph)    W  7         W  8         W  9
Precip Duration       12           12           12
Precip Begin          6 AM         Continuing   Continuing
Precip End            Continuing   Continuing   Continuing
Precip Amount         0.46         0.22         0.76
Mixing Hgt(ft-agl)    3000         1200         2900
Transport Wnd (mph)   W 10         W  9         W 12
Dispersion Index      25           12           25
Max LVORI             4            5            5

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Showers and a chance of thunderstorms. Lows
around 80. West winds around 10 mph.
.FRIDAY...Showers and a chance of thunderstorms. Highs in the
upper 80s. Southwest winds around 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows around 80. Southwest winds around 10 mph.
.SATURDAY...Partly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Southwest winds around
5 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 80. South winds around 5 mph.
.SUNDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows around 80. East winds around 10 mph.
.MONDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. East winds around 10 mph.
.MONDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 80s. East winds around 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 80s. East winds around 10 mph.

$$