FNUS52 KKEY 110811
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
411 AM EDT Mon May 11 2026

.Discussion...
Light to gentle southeasterly breezes are primed to slacken today
while a weak frontal boundary moves towards the Keys. Heat will
continue to be a problem this afternoon with dew points in the
mid 70s. Shower coverage will begin to increase tonight and
Tuesday as the frontal boundary nears the Keys. Slackening winds
does mean that dispersion indices will become very low, even during
daytime hours.

FLZ076>078-112315-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
411 AM EDT Mon May 11 2026

                      Today        Tonight      Tue

Cloud Cover           Pcldy        Pcldy        Pcldy
Chance Precip (%)     10           10           20
Chance of Thunder (%) 10           10           20
Weather Type          Tstms        Tstms        Tstms
Max/Min Temp          90           80           90
Min/Max RH %          62           84           62
Wind 20ft AM (mph)    SE  6                     Lgt/Var
Wind 20ft PM (mph)    Lgt/Var      Lgt/Var      Lgt/Var
Precip Duration       1            1            1
Precip Begin          8 AM         Continuing   Continuing
Precip End            Continuing   Continuing   Continuing
Precip Amount         0.00         0.02         0.03
Mixing Hgt(ft-agl)    3400         1800         3300
Transport Wnd (mph)   SE  8        E  9         SE  6
Dispersion Index      42           5            20
Max LVORI             3            4            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 around 80. North winds
around 5 mph.
.WEDNESDAY...Partly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. Northeast winds around
5 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 70s. Northeast
winds around 5 mph.
.THURSDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. Northeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Northeast
winds around 5 mph.
.FRIDAY...Sunny. Highs in the upper 80s. North winds around
5 mph.
.FRIDAY NIGHT...Mostly clear with a slight chance of showers.
Lows around 80. East winds around 5 mph.
.SATURDAY...Mostly sunny with a slight chance of showers. Highs
in the upper 80s. East winds around 5 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms. Lows in the lower 80s. East winds around
10 mph.
.SUNDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 80s. East winds around 5 mph.

$$