253
FNUS52 KKEY 180825
FWFKEY
FIRE WEATHER PLANNING FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
425 AM EDT SUN OCT 18 2026
DISCUSSION
A COLD FRONT WILL PASS OVER THE FLORIDA KEYS THIS MORNING.
WINDS FRESHENED RAPIDLY BEFORE SUNRISE, AND WINDY CONDITIONS
ARE ON TRACK TO PERSIST THROUGH TUESDAY. SHOWER CHANCES WILL
REMAIN ELEVATED TODAY AND TONIGHT WHILE THE FRONT LINGERS NEAR
THE ISLAND CHAIN. MIN RH VALUES TODAY WILL REMAIN HIGHER, LOWER
TO MID 70S PERCENT, BUT WILL DECREASE TO THE UPPER 60S ON
MONDAY.
FLZ076>078-182315-
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-
INCLUDING THE CITIES OF KEY LARGO, MARATHON, AND KEY WEST
425 AM EDT SUN OCT 18 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY
CHANCE PRECIP (%) 60 50 40
CHANCE OF THUNDER (%) 20 20 20
WEATHER TYPE TSTMS TSTMS TSTMS
MAX/MIN TEMP 85 76 86
MIN/MAX RH % 74 91 69
WIND 20FT AM (MPH) NE 15 NE 16
WIND 20FT PM (MPH) NE 16 NE 16 G25 NE 16
PRECIP DURATION 10 4 2
PRECIP BEGIN 6 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
PRECIP AMOUNT 0.41 0.61 0.67
MIXING HGT(FT-AGL) 2800 1700 3700
TRANSPORT WND (MPH) E 21 NE 29 NE 24
DISPERSION INDEX 41 40 61
MAX LVORI 4 4 4
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. NORTHEAST WINDS AROUND
15 MPH.
TUESDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS IN THE
MID 80S. NORTHEAST WINDS AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE MID 70S. NORTHEAST WINDS AROUND 15 MPH.
WEDNESDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS IN THE
MID 80S. NORTH WINDS AROUND 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE MID 70S. NORTHEAST WINDS AROUND 15 MPH.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND
15 MPH.
THURSDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE MID 70S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY
SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER 80S.
NORTH WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 70S. NORTHEAST WINDS AROUND 10 MPH.
SATURDAY
SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER
80S. NORTH WINDS AROUND 15 MPH.
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