840  
FNUS74 KSHV 112121  
FWSSHV  
 
SPOT FORECAST FOR HOLLY...USFS  
NATIONAL WEATHER SERVICE SHREVEPORT LA  
ISSUED BY NATIONAL WEATHER SERVICE FORT WORTH TX  
421 PM CDT TUE AUG 11 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1800 CDT ON AUGUST 11.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (318) 631-3669 EXT. 241, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
..HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT FRIDAY  
 
   
DISCUSSION  
 
TYPICAL LATE SUMMER PATTERN OF S WINDS, SCATTERED CU AND LITTLE IF  
ANY CHANCE FOR RAINFALL. WINDS WILL KEEP SPEED OVERNIGHT AND 40%  
RH WILL ELEVATE TO 90% BY DAYBREAK AND SHOULD HELP SLOW THE FIRE.  
LITTLE CHANGE WITH A REPEAT ON SKY AND TEMPS FOR WEDNESDAY.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).  
TEMPERATURE.........95 AT FORECAST START...MIN 74.  
RH..................45 PERCENT AT FORECAST START...MAX 93 PERCENT.  
WIND (20 FT)........WINDS SOUTH AT 5 MPH AT FORECAST  
START...OTHERWISE SOUTH WINDS AROUND 5 MPH  
EARLY IN THE EVENING BECOMING LIGHT.  
TRANSPORT WINDS.....SOUTH 9 TO 12 MPH.  
TRANSPORT WINDS M/S.SOUTH 4 TO 5 METERS/SECOND.  
LVORI...............4.  
DISPERSION INDEX....30 DECREASING TO 3.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........5 7 7 11 15 14 8 10 11 10 10 11  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............95 93 90 84 81 80 78 77 77 76 76 75  
RH..............45 47 54 67 74 77 79 82 82 85 85 90  
20 FT WIND DIR..S S S S S S S S S S S S  
20 FT WIND MPH..5 2 2 2 1 1 1 2 2 2 2 2  
20 FT WIND GUST.13 12 10 9 8 8 8 9 9 10 10 10  
TRANSP WIND DIR.S S S S S S S S S S S S  
TRANSP WIND SPD.10 9 9 9 10 10 10 9 12 12 12 10  
TRANS WIND DIR..S S S S S S S S S S S S  
TRANS SPD (M/S).4 4 4 4 4 4 4 4 5 5 5 4  
DISPERSION IDX..30 4 0 0 5 4 4 4 4 4 5 5  
LVORI...........2 2 2 3 3 3 4 4 4 5 5 5  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
CWR.................0 PERCENT.  
TEMPERATURE.........MAX 95.  
RH..................MIN 42 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH IN THE  
LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......7300 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 9 TO 15 MPH.  
TRANSPORT WINDS M/S.SOUTHWEST 4 TO 7 METERS/SECOND.  
LVORI...............3.  
DISPERSION INDEX....8 INCREASING TO 18 EARLY IN THE MORNING, THEN  
INCREASING TO 29 LATE IN THE MORNING INCREASING  
TO 42 LATE IN THE MORNING INCREASING TO 54  
INCREASING TO 68 EARLY IN THE AFTERNOON  
INCREASING TO 82 INCREASING TO 103 EARLY IN THE  
AFTERNOON INCREASING TO 120 DECREASING TO 87  
LATE IN THE AFTERNOON.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........16 16 16 20 20 12 11 10 14 15 12 7  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............75 74 76 79 82 85 88 90 93 94 95 95  
RH..............90 93 90 85 77 70 61 56 49 46 43 43  
20 FT WIND DIR..S S S S SW SW SW S S S S S  
20 FT WIND MPH..2 3 3 3 5 5 5 5 5 5 5 5  
20 FT WIND GUST.12 12 14 15 14 15 14 14 15 15 14 14  
MIX HGT (KFT)...0.7 0.7 1.2 2.0 2.3 3.0 3.9 5.2 6.3 6.9 7.3 6.9  
TRANSP WIND DIR.S S SW SW SW SW SW S S S S S  
TRANSP WIND SPD.9 10 13 15 14 14 14 13 14 14 14 13  
TRANS WIND DIR..S S SW SW SW SW SW S S S S S  
TRANS SPD (M/S).4 4 6 7 6 6 6 6 6 6 6 6  
DISPERSION IDX..6 10 18 29 42 54 68 82 103 119 120 87  
LVORI...........5 5 5 4 3 2 2 1 1 1 1 1  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).  
TEMPERATURE.........MIN 74.  
RH..................MAX 93 PERCENT.  
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
TRANSPORT WINDS.....SOUTH 9 TO 12 MPH.  
TRANSPORT WINDS M/S.SOUTH 4 TO 5 METERS/SECOND.  
LVORI...............4.  
DISPERSION INDEX....42 DECREASING TO 3.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........6 8 4 4 5 4 6 10 7 8 7 12  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............95 93 91 85 82 80 79 78 77 77 76 76  
RH..............42 44 47 59 67 69 72 76 79 79 85 85  
20 FT WIND DIR..S S S S S S S S S S S S  
20 FT WIND MPH..5 2 2 2 1 1 1 2 2 2 3 3  
20 FT WIND GUST.14 12 9 9 8 8 8 9 10 12 13 13  
TRANSP WIND DIR.S S S S S S S S S S S S  
TRANSP WIND SPD.12 10 9 10 12 12 12 12 12 12 10 10  
TRANS WIND DIR..S S S S S S S S S S S S  
TRANS SPD (M/S).5 4 4 4 5 5 5 5 5 5 4 4  
DISPERSION IDX..42 5 0 0 5 5 5 5 5 4 5 4  
LVORI...........2 2 2 3 3 3 3 3 4 4 4 5  
 
 
FORECASTER...CHATELAIN  
REQUESTED BY...GLEN FORTENBERRY  
TYPE OF REQUEST...WILDFIRE  
.TAG 2619456.0/SHV  
.DELDT 08/11/26  
.FORMATTERVERSION 2.0.0  
.EMAIL ARAOC@FIRENET.GOV,JESSE.A.NICHOLS@USDA.GOV  
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