817
FNUS52 KKEY 210841
FWFKEY
FIRE WEATHER PLANNING FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
441 AM EDT TUE JUL 21 2026
DISCUSSION
TEMPERATURES WILL REMAIN SLIGHTLY ABOVE NORMAL WITH HIGHS NEAR
90, OVERNIGHT LOWS IN THE LOWER TO MID 80S. DEW POINTS WILL BE IN
THE MID TO UPPER 70S. MINIMUM RH VALUES WILL BE NEAR 60% DURING
THE DAY, RECOVERING TO 85% TO 90% OVERNIGHT. WAVES OF SAHARA DUST
WILL CONTINUE TO DOMINATE THE REGION FOR THE NEXT FEW DAYS,
CONTINUING TO YIELD TO MAINLY SLIGHT CHANCES.
THE NATIONAL HURRICANE CENTER IS CONTINUING TO ISSUE ADVISORIES
ON TROPICAL STORM BERTHA LOCATED ACROSS THE NORTHEASTERN GULF OF
AMERICA. THIS SYSTEM POSES NO RISK TO THE FLORIDA KEYS.
FLZ076>078-220130-
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-
INCLUDING THE CITIES OF KEY LARGO, MARATHON, AND KEY WEST
441 AM EDT TUE JUL 21 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY MCLEAR MCLEAR
CHANCE PRECIP (%) 0 10 10
CHANCE OF THUNDER (%) 0 10 10
WEATHER TYPE NONE TSTMS TSTMS
MAX/MIN TEMP 93 82 92
MIN/MAX RH % 61 86 60
WIND 20FT AM (MPH) SE 10 SE 9
WIND 20FT PM (MPH) SE 8 SE 7 SE 7
PRECIP DURATION 1 1
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING CONTINUING
PRECIP AMOUNT 0.00 0.00 0.00
MIXING HGT(FT-AGL) 3500 2100 4000
TRANSPORT WND (MPH) SE 13 E 15 SE 13
DISPERSION INDEX 55 16 56
MAX LVORI 3 4 3
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 80S. EAST WINDS AROUND
10 MPH.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 90S. EAST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 80S. EAST WINDS AROUND 10 MPH.
FRIDAY
SUNNY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS
IN THE LOWER 90S. EAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
SATURDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS IN THE
UPPER 80S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 80S. SOUTHEAST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S. LIGHT WINDS.
SUNDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH.
MJV
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