427
FNUS54 KHUN 211803
FWFHUN
FIRE WEATHER PLANNING FORECAST FOR ALABAMA
NATIONAL WEATHER SERVICE HUNTSVILLE AL
103 PM CDT TUE JUL 21 2026
DISCUSSION
LOW TO MEDIUM CHANCES FOR SHOWERS/STORMS WILL RETURN TO THE
FORECAST TONIGHT INTO WEDNESDAY AS A WEAK COLD FRONT MOVES
THROUGH THE TN VALLEY. LOCATIONS THAT DO SEE A STORM WILL
RECEIVE WETTING RAINS, BUT SOME AREAS WILL REMAIN DRY.
MIXING HEIGHTS WILL CLIMB TO 4.5 KFT ON WEDNESDAY AND 5.5 KFT
ON THURSDAY, BUT LIGHT WINDS MAY LIMIT DISPERSION VALUES
SOMEWHAT, ESPECIALLY WEDNESDAY.
FOG POTENTIAL OVER THE NEXT FEW DAYS: PATCHY FOG MAY DEVELOP IN
SHELTERED VALLEYS AND LOCATIONS THAT RECEIVE RAINFALL EARLIER TODAY.
POTENTIAL FOR RED FLAG CONDITIONS: NONE AT THIS TIME.
ALZ001>003-220930-
LAUDERDALE-COLBERT-FRANKLIN AL-
INCLUDING THE CITIES OF FLORENCE, MUSCLE SHOALS, SHEFFIELD,
TUSCUMBIA, RUSSELLVILLE, AND RED BAY
103 PM CDT TUE JUL 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
MIN/MAX TEMP 74 89 68 86
MAX/MIN RH % 97 60 91 56
WIND 20FT AM (MPH) LGT/VAR N 4 NE 5 NE 5
WIND 20FT PM (MPH) LGT/VAR N 4 NE 5 NE 5
CHANCE PRECIP (%) 30 20 20 20
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
PRECIP DURATION 2 1 1 2
PRECIP AMOUNT 0.04 0.03 0.02 0.01
MIXING HGT(FT-AGL/MSL) 4700 5400
TRANSPORT WND (MPH) N 7 N 8
STABILITY CLASS D D D D
MAX LVORI 7 7 5 4
DISPERSION 35 FAIR 49 GEN GOOD
REMARKS...NONE.
ALZ004-014-220930-
LAWRENCE-WINSTON-
INCLUDING THE CITIES OF MOULTON, TOWN CREEK, AND HALEYVILLE
103 PM CDT TUE JUL 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY MCLDY MCLDY
MIN/MAX TEMP 73 90 69 86
MAX/MIN RH % 96 59 95 57
WIND 20FT AM (MPH) LGT/VAR LGT/VAR NE 4 N 4
WIND 20FT PM (MPH) LGT/VAR LGT/VAR NE 4 N 4
CHANCE PRECIP (%) 0 20 30 30
PRECIP TYPE NONE TSTMS TSTMS TSTMS
PRECIP DURATION 1 2 2
PRECIP AMOUNT 0.00 0.03 0.15 0.06
MIXING HGT(FT-AGL/MSL) 4800 5100
TRANSPORT WND (MPH) E 5 NE 7
STABILITY CLASS D D D D
MAX LVORI 6 6 6 5
DISPERSION 20 GEN POOR 32 FAIR
REMARKS...NONE.
ALZ005>007-016-220930-
LIMESTONE-MADISON-MORGAN-CULLMAN-
INCLUDING THE CITIES OF ATHENS, HUNTSVILLE, DECATUR, AND CULLMAN
103 PM CDT TUE JUL 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
MIN/MAX TEMP 73 91 68 87
MAX/MIN RH % 96 61 95 58
WIND 20FT AM (MPH) LGT/VAR LGT/VAR NE 4 N 4
WIND 20FT PM (MPH) LGT/VAR LGT/VAR NE 4 N 4
CHANCE PRECIP (%) 10 30 40 40
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
PRECIP DURATION 1 2 2 2
PRECIP AMOUNT 0.01 0.03 0.14 0.08
MIXING HGT(FT-AGL/MSL) 4800 5000
TRANSPORT WND (MPH) SW 5 N 7
STABILITY CLASS D D D D
MAX LVORI 6 6 6 5
DISPERSION 24 FAIR 33 FAIR
REMARKS...NONE.
ALZ008>010-220930-
MARSHALL-JACKSON-DEKALB-
INCLUDING THE CITIES OF ALBERTVILLE, BOAZ, GUNTERSVILLE, ARAB,
SCOTTSBORO, FORT PAYNE, AND RAINSVILLE
103 PM CDT TUE JUL 21 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLDY MCLDY MCLDY
MIN/MAX TEMP 72 90 68 85
MAX/MIN RH % 97 64 98 67
WIND 20FT AM (MPH) S 4 LGT/VAR LGT/VAR LGT/VAR
WIND 20FT PM (MPH) S 4 LGT/VAR LGT/VAR LGT/VAR
CHANCE PRECIP (%) 0 40 60 50
PRECIP TYPE NONE TSTMS TSTMS TSTMS
PRECIP DURATION 2 4 2
PRECIP AMOUNT 0.00 0.03 0.22 0.19
MIXING HGT(FT-AGL/MSL) 4700 4300
TRANSPORT WND (MPH) SW 7 N 6
STABILITY CLASS D D D D
MAX LVORI 6 6 7 6
DISPERSION 31 FAIR 25 FAIR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. LIGHT WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S. MINIMUM RH 65 PERCENT.
LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 70S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH THUNDERSTORMS LIKELY AND A CHANCE
OF SHOWERS. HIGHS IN THE UPPER 80S. MINIMUM RH 68 PERCENT. SOUTH
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 70S. LIGHT WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 90. MINIMUM RH 62 PERCENT.
SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. MINIMUM RH
55 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. MINIMUM RH
55 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
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