574  
FNUS54 KHUN 221938  
FWFHUN  
 
FIRE WEATHER PLANNING FORECAST FOR NORTHERN ALABAMA  
NATIONAL WEATHER SERVICE HUNTSVILLE AL  
238 PM CDT SUN OCT 22 2017  
   
DISCUSSION
 
 
WIDESPREAD SHOWERS, WITH ISOLATED THUNDERSTORMS, ARE EXPECTED TO  
DEVELOP THIS EVENING AS A COLD FRONT MOVES INTO THE AREA. AS THE  
COLD FRONT MOVES THROUGH EARLY ON MONDAY, RAIN WILL BEGIN TO EXIT  
THE AREA, WITH MOST OF THE AREA BECOMING DRY BY THE AFTERNOON  
HOURS. MODERATE TO HEAVY RAINFALL IS POSSIBLE WITH THE ACTIVITY  
TONIGHT THROUGH MONDAY MORNING, WITH RAINFALL TOTALS OF 1 TO 3  
INCHES EXPECTED. WINDS WILL GENERALLY BE FROM THE SOUTH THROUGH  
THE LATE EVENING HOURS AND THEN BEGIN TO SHIFT TO THE WEST BY  
MONDAY MORNING.  
 
MUCH DRIER AIR WILL BEGIN TO FILTER INTO THE REGION MONDAY NIGHT  
AS WINDS BECOME MORE NORTHWESTERLY. DESPITE THE DRIER AIR, MINIMUM  
RH VALUES WILL REMAIN IN THE 35 TO 40 PERCENT RANGE ON TUESDAY  
AND THEN INCREASE SLIGHTLY THROUGH THE WEEK. MIXING HEIGHTS WILL  
RISE WELL ABOVE 2000 FEET BY TUESDAY AFTERNOON AND TRANSPORT WINDS  
WILL BE AROUND 20 MPH. THIS WILL CREATE VERY GOOD DISPERSION  
CONDITIONS. THE DRY AIR CONDITIONS WILL PERSIST THROUGH THE  
REMAINDER OF THE WORKWEEK, UNTIL ANOTHER COLD FRONT APPROACHES  
LATE FRIDAY/EARLY SATURDAY.  
 
FOG POTENTIAL OVER THE NEXT FEW DAYS: NONE AT THIS TIME.  
 
POTENTIAL FOR RED FLAG CONDITIONS: NONE AT THIS TIME.  
 
ALZ001>003-231030-  
LAUDERDALE-COLBERT-FRANKLIN AL-  
INCLUDING THE CITIES OF FLORENCE, MUSCLE SHOALS, SHEFFIELD,  
TUSCUMBIA, RUSSELLVILLE, AND RED BAY  
238 PM CDT SUN OCT 22 2017  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER CLOUDY MCLDY PCLDY MCLEAR  
TEMP 57 66 47 63  
RH % 99 57 85 37  
20FT WND MPH (AM) W 7 NW 8  
20FT WND MPH (PM) S 8 W 7 LGT/VAR NW 9 G18  
CHANCE PRECIP (%) 100 60 10 10  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
PRECIP DURATION 4-8 2-4 0 0  
PRECIP AMOUNT 1.13 0.06 0.00 0.00  
MIXING HGT (FT-AGL) 3900 9100  
TRANSPORT WND (MPH) W 18 NW 22  
LAL 2 1 1 1  
STABILITY CLASS D D E C  
MAX LVORI 8 6  
DISPERSION 65 GOOD 115 VERY GOOD  
 
REMARKS...NONE.  
 

 
 
ALZ004-014-231030-  
LAWRENCE-WINSTON-  
INCLUDING THE CITIES OF MOULTON, TOWN CREEK, AND HALEYVILLE  
238 PM CDT SUN OCT 22 2017  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER CLOUDY MCLDY PCLDY MCLEAR  
TEMP 59 66 46 64  
RH % 99 62 87 35  
20FT WND MPH (AM) W 7 NW 7  
20FT WND MPH (PM) S 8 W 8 LGT/VAR NW 9 G19  
CHANCE PRECIP (%) 100 60 10 10  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
PRECIP DURATION 4-8 2-4 0 0  
PRECIP AMOUNT 1.33 0.12 0.00 0.00  
MIXING HGT (FT-AGL) 3900 8200  
TRANSPORT WND (MPH) W 19 NW 21  
LAL 2 1 1 1  
STABILITY CLASS D D E C  
MAX LVORI 8 8  
DISPERSION 62 GOOD 100 GOOD  
 
REMARKS...NONE.  
 

 
 
ALZ005>007-016-231030-  
LIMESTONE-MADISON-MORGAN-CULLMAN-  
INCLUDING THE CITIES OF ATHENS, HUNTSVILLE, DECATUR, AND CULLMAN  
238 PM CDT SUN OCT 22 2017  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER CLOUDY MCLDY PCLDY MCLEAR  
TEMP 61 66 46 63  
RH % 100 65 90 38  
20FT WND MPH (AM) W 7 NW 7 G17  
20FT WND MPH (PM) SE 10 W 8 G17 LGT/VAR NW 9 G18  
CHANCE PRECIP (%) 100 80 10 10  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
PRECIP DURATION 3-5 4-6 0 0  
PRECIP AMOUNT 1.44 0.43 0.00 0.00  
MIXING HGT (FT-AGL) 4100 8000  
TRANSPORT WND (MPH) W 20 NW 21  
LAL 2 1 1 1  
STABILITY CLASS D C E C  
MAX LVORI 8 8  
DISPERSION 51 GEN GOOD 97 GOOD  
 
REMARKS...NONE.  
 

 
 
ALZ008>010-231030-  
MARSHALL-JACKSON-DE KALB-  
INCLUDING THE CITIES OF ALBERTVILLE, BOAZ, GUNTERSVILLE, ARAB,  
SCOTTSBORO, FORT PAYNE, AND RAINSVILLE  
238 PM CDT SUN OCT 22 2017  
 
TONIGHT MON MON NIGHT TUE  
 
CLOUD COVER CLOUDY MCLDY PCLDY PCLDY  
TEMP 61 67 46 63  
RH % 100 69 95 40  
20FT WND MPH (AM) W 6 NW 7  
20FT WND MPH (PM) SE 10 W 8 LGT/VAR NW 9 G17  
CHANCE PRECIP (%) 90 90 10 10  
PRECIP TYPE TSTMS SHOWERS NONE NONE  
PRECIP DURATION 3-5 4-6 0 0  
PRECIP AMOUNT 1.51 1.19 0.00 0.00  
MIXING HGT (FT-AGL) 4300 7800  
TRANSPORT WND (MPH) W 21 W 19  
LAL 2 1 1 1  
STABILITY CLASS D D E C  
MAX LVORI 9 10  
DISPERSION 56 GEN GOOD 92 GOOD  
 
REMARKS...NONE.  
 

 
 
   
FORECAST FOR DAYS 3 THROUGH 7
 
 
   
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. MAXIMUM RH  
86 PERCENT. NORTHWEST WINDS AROUND 5 MPH.    
WEDNESDAY
 
SUNNY. HIGHS IN THE UPPER 50S. MINIMUM RH  
41 PERCENT. NORTHWEST WINDS AROUND 5 MPH.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. MAXIMUM  
RH 81 PERCENT. WEST WINDS AROUND 5 MPH.    
THURSDAY
 
SUNNY. HIGHS IN THE MID 60S. MINIMUM RH 46 PERCENT.  
SOUTHWEST WINDS AROUND 5 MPH.    
THURSDAY NIGHT
 
CLEAR. LOWS IN THE UPPER 40S. MAXIMUM RH  
85 PERCENT. SOUTH WINDS AROUND 5 MPH.    
FRIDAY
 
MOSTLY SUNNY WITH A 40 PERCENT CHANCE OF SHOWERS. HIGHS  
IN THE UPPER 60S. MINIMUM RH 55 PERCENT. SOUTH WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF  
SHOWERS. LOWS IN THE MID 40S. MAXIMUM RH 87 PERCENT. SOUTH WINDS  
AROUND 5 MPH.    
SATURDAY
 
PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SHOWERS.  
COOLER. HIGHS IN THE UPPER 50S. MINIMUM RH 61 PERCENT. WEST WINDS  
AROUND 10 MPH.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN  
SHOWERS. LOWS IN THE UPPER 30S. MAXIMUM RH 87 PERCENT. NORTH  
WINDS AROUND 5 MPH.    
SUNDAY
 
MOSTLY SUNNY WITH A 30 PERCENT CHANCE OF RAIN SHOWERS.  
HIGHS IN THE MID 50S. MINIMUM RH 52 PERCENT. NORTH WINDS AROUND  
5 MPH.  
 

 
 
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