791  
FNUS74 KSHV 201142  
FWSSHV  
 
SPOT FORECAST FOR CAT C-29...US FOREST SERVICE  
NATIONAL WEATHER SERVICE SHREVEPORT LA  
642 AM CDT FRI APR 20 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 20.  
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.  
   
DISCUSSION
 
 
20-FOOT WINDS SHOULD GENERALLY REMAIN AROUND 10 MPH OR LESS,  
ALTHOUGH WINDS MAY GUST UP TO 15 MPH ON SATURDAY AFTERNOON. DRY  
AIR WILL REMAIN IN PLACE TODAY, AND RELATIVE HUMIDITY VALUES  
SHOULD FALL TO AROUND 30 PERCENT THIS AFTERNOON. LOW LEVEL  
MOISTURE WILL SURGE NORTHWARD OVERNIGHT AND ESPECIALLY DURING THE  
DAY SATURDAY, WHICH SHOULD KEEP MINIMUM HUMIDITY LEVELS AROUND 50  
PERCENT. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE AT THE BURN  
SITE BY LATE SATURDAY AFTERNOON AND ESPECIALLY SATURDAY EVENING  
THROUGH SUNDAY AFTERNOON. A COUPLE OF STORMS COULD BE SEVERE.  
RAINFALL AMOUNTS AT THE BURN SITE THIS WEEKEND SHOULD BE BETWEEN  
ONE AND TWO INCHES.  
   
REST OF TODAY
 
 
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........40 40 40 40 40 40 40 40 40 30 30  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0  
TEMP............44 46 51 55 58 61 64 66 68 70 69  
RH..............76 70 59 51 47 44 41 38 36 33 36  
20 FT WIND DIR..NE NE NE E E E E E NE NE E  
20 FT WIND SPD..6 7 7 7 7 6 6 6 6 6 6  
20 FT WIND GUST.7 8 7 7 7 7  
MIX HGT (KFT)...0.2 0.2 0.2 3.0 3.0 3.0 3.6 3.6 3.6 4.3 4.3  
MIX HGT (M).....100 100 100 900 900 900 1100 1100 1100 1300 1300  
TRANSP WIND DIR.NE NE NE E E E E E E NE NE  
TRANSP WIND SPD.9 9 9 18 18 18 12 12 12 8 8  
TRANS WIND DIR..NE NE NE E E E E E E NE NE  
TRANS SPD (M/S).4 4 4 8 8 8 5 5 5 4 4  
   
TONIGHT
 
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........30 30 30 30 30 30 30 60 60 60 60 60  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............67 66 63 60 57 56 55 54 53 52 51 50  
RH..............40 43 49 55 62 65 68 71 74 77 80 84  
20 FT WIND DIR..E E E E E E E E E E E E  
20 FT WIND SPD..6 6 6 5 5 5 5 5 5 4 4 4  
20 FT WIND GUST. 6 6 6 6 5 5  
MIX HGT (KFT)...4.3 3.3 3.3 3.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2  
MIX HGT (M).....1300 1000 1000 1000 100 100 100 100 100 100 100 100  
TRANSP WIND DIR.NE E E E E E E SE SE SE SE SE  
TRANSP WIND SPD.8 12 12 12 7 7 7 6 6 6 9 9  
TRANS WIND DIR..NE E E E E E E SE SE SE SE SE  
TRANS SPD (M/S).4 5 5 5 3 3 3 3 3 3 4 4  
   
SATURDAY
 
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........60 70 70 70 70 70 70 70 70 70 75 75  
WEATHER COV..... SCH SCH SCH SCH SCH  
WEATHER TYPE.... RW RW RW RW RW  
TSTM COV........ SCH SCH SCH SCH SCH  
CWR.............0 10 10 10 10 10 10 20 20 20 20 20  
TEMP............50 49 54 58 63 66 70 73 74 74 75 74  
RH..............88 93 81 71 62 57 52 48 49 50 52 55  
20 FT WIND DIR..E E E E SE SE SE SE SE SE SE SE  
20 FT WIND SPD..4 4 4 5 6 6 7 8 9 9 9 8  
20 FT WIND GUST. 5 5 6 7 8 10 10 13 13  
MIX HGT (KFT)...0.2 0.2 0.2 0.2 1.0 1.6 3.1 3.1 3.1 3.1 3.3 3.3  
MIX HGT (M).....100 100 100 100 300 480 900 900 900 900 1000 1000  
TRANSP WIND DIR.SE SE SE SE SE SE SE S S S S S  
TRANSP WIND SPD.9 10 10 10 15 15 15 15 15 15 9 9  
TRANS WIND DIR..SE SE SE SE SE SE SE S S S S S  
TRANS SPD (M/S).4 4 4 4 7 7 7 7 7 7 4 4  
 

 
FORECASTER...NUTTALL  
REQUESTED BY...BRIAN GIDCUMB  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1807150.0/SHV  
.DELDT 04/20/18  
.EMAIL BGIDCUMB@FS.FED.US  
 
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