977
FNUS54 KHUN 201854
FWFHUN
FIRE WEATHER PLANNING FORECAST FOR ALABAMA
NATIONAL WEATHER SERVICE HUNTSVILLE AL
154 PM CDT THU AUG 20 2026
DISCUSSION
CHANCES OF SHOWERS AND STORMS (30-70%) WILL PERSIST THIS EVENING
BEFORE DECREASING THROUGH MIDNIGHT. SOME OF THESE MAY BECOME
STRONG TO SEVERE, WITH DAMAGING WINDS THE MAIN HAZARD ALONG WITH
HEAVY RAINFALL/FLOODING, FREQUENT LIGHTNING, AND HAIL. THE OVERALL
SEVERE WEATHER THREAT IS THEN EXPECTED TO DECREASE THROUGH
9-10PM. SHOWERS MAY LINGER THROUGH FRIDAY AFTERNOON BEFORE
TAPERING OUT. MAINLY DRY CONDITIONS WILL THEN FOLLOW FOR THE
WEEKEND. MINIMUM RELATIVE HUMIDITY VALUES ARE FORECAST TO REMAIN
ABOVE ANY CRITICAL THRESHOLDS THROUGH SATURDAY. MIXING HEIGHTS ARE
EXPECTED TO REACH BETWEEN 4000-6200 FEET FRIDAY AFTERNOON AND
BETWEEN 5000-7200 FEET SATURDAY AFTERNOON. ADDITIONALLY, EXPECT
NORTHWESTERLY TRANSPORT WINDS AROUND 10 MPH EACH AFTERNOON.
LASTLY, DAYTIME DISPERSIONS ARE FORECAST TO BE GENERALLY GOOD ON
FRIDAY AND GOOD ON SATURDAY.
FOG POTENTIAL OVER THE NEXT FEW DAYS: THERE EXISTS A LOW TO
MEDIUM CHANCE OF PATCHY TO AREAS OF FOG LATE TONIGHT THROUGH EARLY
FRIDAY MORNING, ESPECIALLY FOR THE RIVER VALLEYS, NEAR BODIES OF
WATER, AND FOR AREAS THAT RECEIVE RAINFALL TODAY. THERE IS THE
POTENTIAL FOR PATCHY FOG LATE FRIDAY NIGHT INTO SATURDAY AS WELL.
POTENTIAL FOR RED FLAG CONDITIONS: NONE AT THIS TIME.
ALZ001>003-210930-
LAUDERDALE-COLBERT-FRANKLIN AL-
INCLUDING THE CITIES OF FLORENCE, MUSCLE SHOALS, SHEFFIELD,
TUSCUMBIA, RUSSELLVILLE, AND RED BAY
154 PM CDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
MIN/MAX TEMP 70 91 67 92
MAX/MIN RH % 100 54 100 45
WIND 20FT AM (MPH) LGT/VAR NW 5 LGT/VAR N 4
WIND 20FT PM (MPH) LGT/VAR NW 5 LGT/VAR N 4
CHANCE PRECIP (%) 50 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 1
PRECIP AMOUNT 0.18 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 6200 7000
TRANSPORT WND (MPH) NW 8 N 9
STABILITY CLASS D D D D
MAX LVORI 10 9 9 6
DISPERSION 56 GEN GOOD 74 GOOD
REMARKS...NONE.
ALZ004-014-210930-
LAWRENCE-WINSTON-
INCLUDING THE CITIES OF MOULTON, TOWN CREEK, AND HALEYVILLE
154 PM CDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
MIN/MAX TEMP 70 91 67 91
MAX/MIN RH % 100 52 100 42
WIND 20FT AM (MPH) LGT/VAR NW 4 LGT/VAR N 4
WIND 20FT PM (MPH) LGT/VAR NW 4 LGT/VAR N 4
CHANCE PRECIP (%) 60 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 2
PRECIP AMOUNT 0.28 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 6000 7200
TRANSPORT WND (MPH) NW 9 N 9
STABILITY CLASS D D D D
MAX LVORI 10 9 9 6
DISPERSION 57 GEN GOOD 66 GOOD
REMARKS...NONE.
ALZ005>007-016-210930-
LIMESTONE-MADISON-MORGAN-CULLMAN-
INCLUDING THE CITIES OF ATHENS, HUNTSVILLE, DECATUR, AND CULLMAN
154 PM CDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
MIN/MAX TEMP 70 91 67 91
MAX/MIN RH % 100 55 99 44
WIND 20FT AM (MPH) LGT/VAR NW 4 LGT/VAR N 4
WIND 20FT PM (MPH) LGT/VAR NW 4 LGT/VAR N 4
CHANCE PRECIP (%) 50 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 2
PRECIP AMOUNT 0.20 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 5600 6600
TRANSPORT WND (MPH) NW 8 N 10
STABILITY CLASS D D D D
MAX LVORI 10 9 9 6
DISPERSION 57 GEN GOOD 73 GOOD
REMARKS...NONE.
ALZ008>010-210930-
MARSHALL-JACKSON-DEKALB-
INCLUDING THE CITIES OF ALBERTVILLE, BOAZ, GUNTERSVILLE, ARAB,
SCOTTSBORO, FORT PAYNE, AND RAINSVILLE
154 PM CDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
MIN/MAX TEMP 69 90 66 91
MAX/MIN RH % 100 56 99 42
WIND 20FT AM (MPH) LGT/VAR NW 4 LGT/VAR NW 5
WIND 20FT PM (MPH) LGT/VAR NW 4 LGT/VAR NW 5
CHANCE PRECIP (%) 60 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 2
PRECIP AMOUNT 0.19 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 5700 6500
TRANSPORT WND (MPH) NW 9 NW 12
STABILITY CLASS D D D D
MAX LVORI 10 9 9 6
DISPERSION 55 GEN GOOD 77 GOOD
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
SUNDAY
SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH 47 PERCENT.
NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
45 PERCENT. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. MINIMUM RH
49 PERCENT. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. MINIMUM RH
54 PERCENT. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 70. LIGHT WINDS.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 90. MINIMUM RH 58 PERCENT. SOUTH
WINDS AROUND 5 MPH.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page