697
FNUS52 KKEY 310852
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
452 AM EDT Sun Aug 31 2025

.Discussion...
Slightly above normal rain chances are expected through the
weekend. This is due to a quasi-stalled frontal boundary
that remains across central to northern Florida with moisture
pooling south of this boundary. At the same time, high pressure
across the region is slowly shifting east, which will leave the
Keys under a light wind regime. This will promote fair to poor
dispersion indices, especially this afternoon. Min RH values are
expected to be in the mid to upper 60s percentile today with good
RH recovery to near 90 percent overnight.

FLZ076>078-312315-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
452 AM EDT Sun Aug 31 2025

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Pcldy        Pcldy
Chance Precip (%)     50           50           50
Chance of Thunder (%) 50           50           50
Weather Type          Tstms        Tstms        Tstms
Max/Min Temp          92           79           91
Min/Max RH %          65           91           68
Wind 20ft AM (mph)    W  6                      NW  6
Wind 20ft PM (mph)    W  7         NW  7        W  7
Precip Duration       2            2            2
Precip Begin          6 AM         Continuing   Continuing
Precip End            Continuing   Continuing   Continuing
Precip Amount         0.37         0.34         0.31
Mixing Hgt(ft-agl)    3500         1600         3400
Transport Wnd (mph)   W 12         W  7         W 10
Dispersion Index      33           11           32
Max LVORI             4            5            4

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 80s. Southwest winds around
5 mph.
.TUESDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 90. Northwest winds around 5 mph.
.TUESDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 80s. West winds around 10 mph.
.WEDNESDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 90. Southwest winds around 10 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 80s. Southwest winds around
10 mph.
.THURSDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 90. Southwest winds around 15 mph.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the lower 80s. West winds around 10 mph.
.FRIDAY...Partly sunny with a chance of showers and
thunderstorms. Highs around 90. West winds around 5 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the lower 80s. South winds around 5 mph.
.SATURDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs around 90. East winds around 5 mph.

$$

JAM