504
FNUS54 KHUN 181621
FWFHUN
FIRE WEATHER PLANNING FORECAST FOR ALABAMA
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1121 AM CDT WED MAR 18 2026
DISCUSSION
LITTLE TO NO RAIN CHANCES ARE FORECAST THROUGH FRIDAY. AFTER LOW
MINIMUM RH VALUES IN THE LOW TO MID 30 PERCENT RANGE TODAY, RH
VALUES INCREASE TO BE IN THE 40-50% RANGE DURING THE DAY ON
THURSDAY AND FRIDAY. SOUTHWEST TRANSPORT WINDS BOTH THURSDAY AND
FRIDAY ARE EXPECTED TO REACH BETWEEN 15-20 MPH. MIXING HEIGHTS ARE
FORECAST TO GENERALLY REACH BETWEEN 3000-6000 FEET EACH AFTERNOON
AS WELL. LASTLY, DAYTIME DISPERSIONS ARE EXPECTED TO BE GOOD TO
VERY GOOD BOTH DAYS.
FOG POTENTIAL OVER THE NEXT FEW DAYS: THERE IS A LOW CHANCE OF
PATCHY FOG THURSDAY NIGHT INTO EARLY FRIDAY MORNING.
POTENTIAL FOR RED FLAG CONDITIONS: NONE AT THIS TIME DUE TO
INCREASING MOISTURE THROUGH FRIDAY.
ALZ001>003-190915-
LAUDERDALE-COLBERT-FRANKLIN AL-
INCLUDING THE CITIES OF FLORENCE, MUSCLE SHOALS, SHEFFIELD,
TUSCUMBIA, RUSSELLVILLE, AND RED BAY
1121 AM CDT WED MAR 18 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
MIN/MAX TEMP 40 71 47 78
MAX/MIN RH % 83 46 98 45
WIND 20FT AM (MPH) S 4 SW 5 LGT/VAR SW 5
WIND 20FT PM (MPH) S 4 SW 5 LGT/VAR SW 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) 4700 5700
TRANSPORT WND (MPH) SW 17 SW 16
STABILITY CLASS D D D D
MAX LVORI 3 4 7 6
DISPERSION 95 GOOD 101 VERY GOOD
REMARKS...NONE.
ALZ004-014-190915-
LAWRENCE-WINSTON-
INCLUDING THE CITIES OF MOULTON, TOWN CREEK, AND HALEYVILLE
1121 AM CDT WED MAR 18 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
MIN/MAX TEMP 38 71 46 77
MAX/MIN RH % 83 43 100 43
WIND 20FT AM (MPH) LGT/VAR SW 5 LGT/VAR SW 5
WIND 20FT PM (MPH) LGT/VAR SW 5 LGT/VAR SW 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) 5300 5800
TRANSPORT WND (MPH) SW 17 SW 16
STABILITY CLASS D D D D
MAX LVORI 4 4 9 6
DISPERSION 104 VERY GOOD 110 VERY GOOD
REMARKS...NONE.
ALZ005>007-016-190915-
LIMESTONE-MADISON-MORGAN-CULLMAN-
INCLUDING THE CITIES OF ATHENS, HUNTSVILLE, DECATUR, AND CULLMAN
1121 AM CDT WED MAR 18 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
MIN/MAX TEMP 38 71 46 77
MAX/MIN RH % 82 45 98 46
WIND 20FT AM (MPH) LGT/VAR SW 5 LGT/VAR SW 5
WIND 20FT PM (MPH) LGT/VAR SW 5 LGT/VAR SW 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) 5900 5900
TRANSPORT WND (MPH) SW 17 SW 15
STABILITY CLASS D D D D
MAX LVORI 3 4 7 6
DISPERSION 94 GOOD 91 GOOD
REMARKS...NONE.
ALZ008>010-190915-
MARSHALL-JACKSON-DEKALB-
INCLUDING THE CITIES OF ALBERTVILLE, BOAZ, GUNTERSVILLE, ARAB,
SCOTTSBORO, FORT PAYNE, AND RAINSVILLE
1121 AM CDT WED MAR 18 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLDY MCLEAR MCLEAR
MIN/MAX TEMP 35 68 44 75
MAX/MIN RH % 81 47 98 49
WIND 20FT AM (MPH) LGT/VAR SW 5 LGT/VAR SW 5
WIND 20FT PM (MPH) LGT/VAR SW 5 LGT/VAR SW 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) 4900 5300
TRANSPORT WND (MPH) SW 17 SW 14
STABILITY CLASS D D D D
MAX LVORI 3 3 7 6
DISPERSION 90 GOOD 78 GOOD
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
SATURDAY
SUNNY. HIGHS AROUND 80. MINIMUM RH 48 PERCENT. SOUTH
WINDS AROUND 5 MPH.
SATURDAY NIGHT
CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH 50 PERCENT.
SOUTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. COOLER. HIGHS IN THE LOWER 70S. MINIMUM
RH 54 PERCENT. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S. MINIMUM RH
53 PERCENT. NORTHEAST WINDS AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS
AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. MINIMUM RH
51 PERCENT. SOUTHEAST WINDS AROUND 5 MPH.
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