943
FNUS54 KHUN 181721
FWFHUN
FIRE WEATHER PLANNING FORECAST FOR ALABAMA
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1221 PM CDT SAT APR 18 2026
DISCUSSION
A FRONTAL BOUNDARY WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS
TO THE AREA THIS AFTERNOON. EXPECT THIS TO CONGEAL INTO A MORE
SOLID LINE OF SHOWERS AND THUNDERSTORMS LATE THIS AFTERNOON INTO
THE EVENING HOURS THAT PUSHES EAST ACROSS NORTHERN ALABAMA. A FEW
STORMS COULD BE STRONG PRODUCING SMALL HAIL AND GUSTY WINDS.
MUCH DRIER AIR WILL PUSH INTO THE AREA DURING THE DAY ON SUNDAY,
BEHIND THE DEPARTED COLD FRONT. HIGHS IN THE MID TO UPPER 60S SHOULD
DROP RELATIVE HUMIDITY VALUES TO BETWEEN 25 AND 30 PERCENT IN THE
AFTERNOON. NORTHERLY 20 FOOT WINDS BETWEEN 5 AND 10 MPH GUSTING
TO AROUND 20 MPH ARE EXPECTED FUELED BY NORTHERLY TRANSPORT WINDS
BETWEEN 15 AND 20 MPH. MIXING HEIGHTS IN THE AFTERNOON SHOULD
CLIMB TO BETWEEN 5000 AND 6000 FEET, PROVIDING VERY GOOD DISPERSION
CONDITIONS.
WARMER TEMPERATURES ARE EXPECTED ON MONDAY, BUT LOW LEVEL
MOISTURE SHOULD BE INCREASING. THIS SHOULD ALLOW AFTERNOON
RELATIVE HUMIDITY VALUES TO ONLY DROP TO BETWEEN 28 AND 35
PERCENT. 20 FOOT WINDS LESS THAN 4 MPH ARE EXPECTED NEAR THE AL/MS
BORDER. FURTHER EAST, NORTHWEST 20 FOOT WINDS OF 5 TO 10 MPH WITH
SOME GUSTS TO AROUND 15 MPH ARE POSSIBLE. NORTHWEST TRANSPORT
WINDS BETWEEN 12 AND 18 MPH ARE EXPECTED. MIXING HEIGHTS WILL
CLIMB TO OVER 7000 FEET PRODUCING VERY GOOD DISPERSION CONDITIONS.
FOG POTENTIAL OVER THE NEXT FEW DAYS: FOG IS NOT EXPECTED AT THIS
TIME DUE TO THE DRY AIRMASS THAT WILL BE IN PLACE INTO EARLY
NEXT WEEK.
POTENTIAL FOR RED FLAG CONDITIONS: DUE TO EXPECTED RAINFALL, FUEL
MOISTURE SHOULD NOT BE LOW ENOUGH TO WARRANT ANY INTO EARLY NEXT WEEK.
ALZ001>003-190915-
LAUDERDALE-COLBERT-FRANKLIN AL-
INCLUDING THE CITIES OF FLORENCE, MUSCLE SHOALS, SHEFFIELD,
TUSCUMBIA, RUSSELLVILLE, AND RED BAY
1221 PM CDT SAT APR 18 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLDY MCLEAR CLEAR CLEAR
MIN/MAX TEMP 44 68 43 75
MAX/MIN RH % 91 26 80 30
WIND 20FT AM (MPH) N 7 G17 N 7 LGT/VAR NW 4
WIND 20FT PM (MPH) N 7 G17 N 7 LGT/VAR NW 4
CHANCE PRECIP (%) 80 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 8
PRECIP AMOUNT 0.09 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 6000 7700
TRANSPORT WND (MPH) N 16 NW 15
STABILITY CLASS D D D C
MAX LVORI 4 3 4 3
DISPERSION 123 VERY GOOD 145 VERY GOOD
REMARKS...NONE.
ALZ004-014-190915-
LAWRENCE-WINSTON-
INCLUDING THE CITIES OF MOULTON, TOWN CREEK, AND HALEYVILLE
1221 PM CDT SAT APR 18 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLDY PCLDY CLEAR CLEAR
MIN/MAX TEMP 44 67 41 75
MAX/MIN RH % 95 26 84 28
WIND 20FT AM (MPH) N 8 G19 N 7 LGT/VAR NW 4
WIND 20FT PM (MPH) N 8 G19 N 7 LGT/VAR NW 4
CHANCE PRECIP (%) 90 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 10
PRECIP AMOUNT 0.24 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 5800 8100
TRANSPORT WND (MPH) N 17 NW 16
STABILITY CLASS D D D C
MAX LVORI 4 3 4 3
DISPERSION 129 VERY GOOD 158 VERY GOOD
REMARKS...NONE.
ALZ005>007-016-190915-
LIMESTONE-MADISON-MORGAN-CULLMAN-
INCLUDING THE CITIES OF ATHENS, HUNTSVILLE, DECATUR, AND CULLMAN
1221 PM CDT SAT APR 18 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER CLOUDY PCLDY CLEAR CLEAR
MIN/MAX TEMP 45 67 41 75
MAX/MIN RH % 94 27 83 30
WIND 20FT AM (MPH) N 9 G20 N 8 G17 LGT/VAR NW 5
WIND 20FT PM (MPH) N 9 G20 N 8 G17 LGT/VAR NW 5
CHANCE PRECIP (%) 90 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 11
PRECIP AMOUNT 0.31 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 5800 8300
TRANSPORT WND (MPH) N 18 NW 16
STABILITY CLASS D D D D
MAX LVORI 4 3 5 3
DISPERSION 128 VERY GOOD 150 VERY GOOD
REMARKS...NONE.
ALZ008>010-190915-
MARSHALL-JACKSON-DEKALB-
INCLUDING THE CITIES OF ALBERTVILLE, BOAZ, GUNTERSVILLE, ARAB,
SCOTTSBORO, FORT PAYNE, AND RAINSVILLE
1221 PM CDT SAT APR 18 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER CLOUDY PCLDY CLEAR CLEAR
MIN/MAX TEMP 43 65 41 72
MAX/MIN RH % 95 27 81 32
WIND 20FT AM (MPH) N 11 G23 N 9 G19 LGT/VAR NW 5
WIND 20FT PM (MPH) N 11 G23 N 9 G19 LGT/VAR NW 5
CHANCE PRECIP (%) 90 0 0 0
PRECIP TYPE TSTMS NONE NONE NONE
PRECIP DURATION 11
PRECIP AMOUNT 0.33 0.00 0.00 0.00
MIXING HGT(FT-AGL/MSL) 5500 8100
TRANSPORT WND (MPH) N 20 NW 18
STABILITY CLASS D C D D
MAX LVORI 4 3 4 3
DISPERSION 107 VERY GOOD 173 VERY GOOD
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. LIGHT WINDS.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. MINIMUM RH 30 PERCENT.
NORTHEAST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. LIGHT
WINDS.
WEDNESDAY
SUNNY. HIGHS AROUND 80. MINIMUM RH 30 PERCENT. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH 32 PERCENT.
SOUTHEAST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. MINIMUM RH
41 PERCENT. SOUTH WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
UPPER 50S. SOUTH WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
70S. MINIMUM RH 57 PERCENT. SOUTH WINDS AROUND 5 MPH.
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