FNUS52 KKEY 270834
FWFKEY

Fire Weather Planning Forecast for the Florida Keys
National Weather Service Key West FL
434 AM EDT Mon Apr 27 2026

...DISPERSION INDICES LESS THAN 20 ARE EXPECTED ACROSS MUCH OF THE
REGION THIS AFTERNOON...

.Discussion...
Light to gentle breezes will continue today as weak high pressure
remains in control. Another high drifts southeastward along the
Eastern Seaboard tonight and Tuesday leading to freshening breezes
out of the northeast to east. Some shallow moisture remains
across the Keys keeping slight chances in the forecast through
Tuesday. Min RH values today will be in the upper 50s percent
today and Tuesday with max RH recovering to the upper 80s percent
overnight. Dispersion indices will also be quite low today in the
upper teens.

FLZ076>078-280115-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Including the cities of Key Largo, Marathon, and Key West
434 AM EDT Mon Apr 27 2026

                      Today        Tonight      Tue

Cloud Cover           Mclear       Mclear       Mclear
Chance Precip (%)     10           10           10
Chance of Thunder (%) 0            0            0
Weather Type          Showers      Showers      Showers
Max/Min Temp          86           74           87
Min/Max RH %          58           89           59
Wind 20ft AM (mph)    Lgt/Var                   NE  7
Wind 20ft PM (mph)    Lgt/Var      N  5         E  7
Precip Duration       1            1            1
Precip Begin          8 AM         Continuing   Continuing
Precip End            Continuing   Continuing   Continuing
Precip Amount         0.00         0.00         0.00
Mixing Hgt(ft-agl)    3800         700          4200
Transport Wnd (mph)   NW  5        N  8         E 10
Dispersion Index      18           7            45
Max LVORI             5            4            4

Remarks...None.

$$

.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT...Mostly clear with a slight chance of showers.
Lows in the mid 70s. East winds around 10 mph.
.WEDNESDAY...Sunny with a slight chance of showers. Highs in the
upper 80s. East winds around 5 mph.
.WEDNESDAY NIGHT...Mostly clear with a slight chance of showers.
Lows in the upper 70s. East winds around 5 mph.
.THURSDAY...Sunny with a slight chance of showers. Highs in the
upper 80s. Southeast winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. West winds
around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Light winds.
.FRIDAY NIGHT...Mostly clear. Lows in the upper 70s. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the mid 80s. Southeast winds around
10 mph.
.SATURDAY NIGHT...Mostly clear with a slight chance of showers.
Lows in the mid 70s. Southeast winds around 5 mph.
.SUNDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the mid 80s. South winds around 5 mph.

$$

MJV