733
FNUS54 KHUN 211908
FWFHUN
FIRE WEATHER PLANNING FORECAST FOR ALABAMA
NATIONAL WEATHER SERVICE HUNTSVILLE AL
208 PM CDT TUE APR 21 2026
DISCUSSION
A WEAKENING RIDGE OF HIGH PRESSURE CENTERED OFF THE SOUTHEASTERN
ATLANTIC COAST WILL REMAIN THE DOMINANT WEATHER FEATURE ACROSS THE
TN VALLEY THROUGH THURSDAY, PROVIDING A DRY AIRMASS AND LIGHT
SOUTHWESTERLY WINDS DURING THE DAYLIGHT HOURS (FOLLOWED BY
LIGHT/VARIABLE-CALM WINDS AT NIGHT). IN THIS REGIME, MINRH VALUES
WILL GRADUALLY INCREASE FROM THE 25-30% RANGE TODAY TO 35-40% BY
THURSDAY. SMOKE DISPERSION INDICES WILL BE VERY GOOD BOTH
WEDNESDAY AND THURSDAY, WITH MIXING HEIGHTS OF 9-10 KFT AND
TRANSPORT WINDS OF 10-15 MPH. IN THE EXTENDED FORECAST PERIOD, WE
STILL ANTICIPATE CHANCES FOR SHOWERS AND THUNDERSTORMS TO SLOWLY
INCREASE LATE THIS WEEK, BEFORE BECOMING FAIRLY HIGH ON FRIDAY
NIGHT/SATURDAY AND AGAIN ON MONDAY AFTERNOON/NIGHT.
FOG POTENTIAL OVER THE NEXT FEW DAYS: PATCHY FOG MAY DEVELOP IN
VALLEYS AND NEAR LARGE BODIES OF WATER ON WEDNESDAY, THURSDAY AND
FRIDAY MORNINGS.
POTENTIAL FOR RED FLAG CONDITIONS: A GRADUAL INCREASE IN RH
VALUES OVER THE NEXT SEVERAL DAYS (COUPLED WITH LIGHT WINDS) WILL
PREVENT RED FLAG CRITERIA FROM BEING ACHIEVED. HOWEVER, FUELS WILL
REMAIN DRY THROUGH THE END OF THE WEEK, RESULTING IN AN ELEVATED
FIRE RISK.
ALZ001>003-220930-
LAUDERDALE-COLBERT-FRANKLIN AL-
INCLUDING THE CITIES OF FLORENCE, MUSCLE SHOALS, SHEFFIELD,
TUSCUMBIA, RUSSELLVILLE, AND RED BAY
208 PM CDT TUE APR 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
MIN/MAX TEMP 51 81 54 82
MAX/MIN RH % 81 30 88 38
WIND 20FT AM (MPH) LGT/VAR SW 5 LGT/VAR S 7
WIND 20FT PM (MPH) LGT/VAR SW 5 LGT/VAR S 7
CHANCE PRECIP (%) 0 0 0 0
PRECIP TYPE NONE NONE NONE NONE
PRECIP DURATION
PRECIP AMOUNT 0.00 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 9800 9000
TRANSPORT WND (MPH) SW 13 S 17
STABILITY CLASS D D D D
MAX LVORI 4 3 5 4
DISPERSION 144 VERY GOOD 141 VERY GOOD
REMARKS...NONE.
ALZ004-014-220930-
LAWRENCE-WINSTON-
INCLUDING THE CITIES OF MOULTON, TOWN CREEK, AND HALEYVILLE
208 PM CDT TUE APR 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLEAR MCLEAR MCLEAR
MIN/MAX TEMP 52 82 53 82
MAX/MIN RH % 80 28 94 34
WIND 20FT AM (MPH) LGT/VAR SW 4 LGT/VAR S 6
WIND 20FT PM (MPH) LGT/VAR SW 4 LGT/VAR S 6
CHANCE PRECIP (%) 0 0 0 0
PRECIP TYPE NONE NONE NONE NONE
PRECIP DURATION
PRECIP AMOUNT 0.00 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 10100 8700
TRANSPORT WND (MPH) SW 12 S 14
STABILITY CLASS D D D D
MAX LVORI 4 3 5 4
DISPERSION 129 VERY GOOD 115 VERY GOOD
REMARKS...NONE.
ALZ005>007-016-220930-
LIMESTONE-MADISON-MORGAN-CULLMAN-
INCLUDING THE CITIES OF ATHENS, HUNTSVILLE, DECATUR, AND CULLMAN
208 PM CDT TUE APR 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLEAR MCLEAR MCLEAR
MIN/MAX TEMP 51 82 53 83
MAX/MIN RH % 79 29 89 35
WIND 20FT AM (MPH) LGT/VAR W 4 LGT/VAR S 6
WIND 20FT PM (MPH) LGT/VAR W 4 LGT/VAR S 6
CHANCE PRECIP (%) 0 0 0 0
PRECIP TYPE NONE NONE NONE NONE
PRECIP DURATION
PRECIP AMOUNT 0.00 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 9800 9400
TRANSPORT WND (MPH) SW 12 S 14
STABILITY CLASS D D D D
MAX LVORI 4 3 5 4
DISPERSION 113 VERY GOOD 115 VERY GOOD
REMARKS...NONE.
ALZ008>010-220930-
MARSHALL-JACKSON-DEKALB-
INCLUDING THE CITIES OF ALBERTVILLE, BOAZ, GUNTERSVILLE, ARAB,
SCOTTSBORO, FORT PAYNE, AND RAINSVILLE
208 PM CDT TUE APR 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLEAR MCLEAR MCLEAR
MIN/MAX TEMP 51 81 52 81
MAX/MIN RH % 76 30 83 34
WIND 20FT AM (MPH) LGT/VAR W 4 LGT/VAR S 5
WIND 20FT PM (MPH) LGT/VAR W 4 LGT/VAR S 5
CHANCE PRECIP (%) 0 0 0 0
PRECIP TYPE NONE NONE NONE NONE
PRECIP DURATION
PRECIP AMOUNT 0.00 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 9700 10600
TRANSPORT WND (MPH) W 10 SW 10
STABILITY CLASS D D D D
MAX LVORI 3 3 4 3
DISPERSION 104 VERY GOOD 103 VERY GOOD
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
45 PERCENT. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
SHOWERS AND A CHANCE OF THUNDERSTORMS. HIGHS IN THE
UPPER 70S. MINIMUM RH 65 PERCENT. SOUTH WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. LIGHT WINDS.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. MINIMUM RH 49 PERCENT. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 60. LIGHT WINDS.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80. MINIMUM RH 57 PERCENT. SOUTHEAST
WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS AROUND 80. MINIMUM RH 50 PERCENT.
SOUTH WINDS AROUND 5 MPH.
70/DD
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