FNUS52 KKEY 070801

FWFKEY



Fire Weather Planning Forecast for the Florida Keys

National Weather Service Key West FL

401 AM EDT Thu May 7 2026



...DISPERSION INDICES NEAR 20 EXPECTED ACROSS MUCH OF THE

FLORIDA KEYS TODAY, NEAR 10 ON FRIDAY...



.Discussion...

Light to gentle east to southeast breezes will become variable at

times today and Friday. The lack of flow and associated 

transport winds will support low dispersion indices, with 

indices near 10 during the afternoon hours on Friday. Despite the

poor dispersion, minimum relative humidity values will remain 

above 60% for each forecast period. Similar conditions will 

continue for the next several days, including near-nil rain and 

thunder chances. Temperatures will steadily warm Friday through 

the weekend, with highs approaching the upper 80s, and lows 

struggling to fall below 80 in the overnight periods.



FLZ076>078-080230-

Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-

Including the cities of Key Largo, Marathon, and Key West

401 AM EDT Thu May 7 2026



                      Today        Tonight      Fri          



Cloud Cover           Mclear       Mclear       Mclear       

Chance Precip (%)     0            0            0            

Chance of Thunder (%) 0            0            0            

Weather Type          None         None         None         

Max/Min Temp          88           78           89           

Min/Max RH %          61           87           61           

Wind 20ft AM (mph)    Lgt/Var                   Lgt/Var      

Wind 20ft PM (mph)    Lgt/Var      Lgt/Var      Lgt/Var      

Precip Duration                                              

Precip Begin                                                 

Precip End                                                   

Precip Amount         0.00         0.00         0.00         

Mixing Hgt(ft-agl)    3000         1100         2600         

Transport Wnd (mph)   S  7         S  5         E  5         

Dispersion Index      23           3            11           

Max LVORI             4            5            5            



Remarks...None.



$$



.FORECAST FOR DAYS 3 THROUGH 7...

.FRIDAY NIGHT...Partly cloudy. Lows in the lower 80s. East winds

around 5 mph. 

.SATURDAY...Mostly sunny. Highs in the upper 80s. Southeast winds

around 5 mph. 

.SATURDAY NIGHT...Partly cloudy. Lows in the lower 80s. Southeast

winds around 5 mph. 

.SUNDAY...Mostly sunny. Highs in the upper 80s. Southeast winds

around 10 mph. 

.SUNDAY NIGHT...Partly cloudy. Lows in the lower 80s. Southeast

winds around 5 mph. 

.MONDAY...Mostly sunny with a slight chance of showers. Highs in

the upper 80s. Southeast winds around 5 mph. 

.MONDAY NIGHT...Mostly cloudy with a slight chance of showers and

thunderstorms. Lows around 80. South winds around 5 mph. 

.TUESDAY...Mostly sunny with a slight chance of showers and

thunderstorms. Highs in the upper 80s. Northwest winds around

5 mph. 

.TUESDAY NIGHT...Partly cloudy with a slight chance of showers

and thunderstorms. Lows around 80. East winds around 5 mph. 

.WEDNESDAY...Mostly sunny with a slight chance of showers and

thunderstorms. Highs in the upper 80s. Northeast winds around

5 mph. 



$$



BT