060  
FNUS73 KLBF 201259  
FWSLBF  
 
SPOT FORECAST FOR SOUTH SHOP...USFWS  
NATIONAL WEATHER SERVICE NORTH PLATTE NE  
759 AM CDT THU APR 20 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON APRIL 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL  
WEATHER SERVICE.  
 
PLEASE CONTACT THE NWS NORTH PLATTE OFFICE AT (308) 532-0921  
(OR 1-800-603-3562), IF YOU HAVE QUESTIONS OR CONCERNS WITH  
THIS FORECAST.  
   
DISCUSSION
 
 
THE MAIN FIRE WEATHER CONCERN TODAY WILL BE SHIFTING WIND DIRECTION.  
WINDS ARE EXPECTED TO BE FAIRLY LIGHT AT 5 TO 15 MPH, HOWEVER  
THE WIND DIRECTION WILL SHIFT FROM NORTHWEST THIS MORNING, TO NORTH  
THIS AFTERNOON, TO EAST BY EARLY EVENING. MINIMUM RELATIVE HUMIDITY  
WILL RANGE FROM 25 TO 35 PERCENT IN THE BURN AREA.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
LAL.................NO TSTMS.  
TEMPERATURE.........42 AT IGNITION...MAX 64.  
RH..................79 PERCENT AT IGNITION...MIN 31 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTH 6 TO 11 MPH EARLY IN  
THE MORNING.  
WIND (20 FT)........  
SLOPE/VALLEY.......WINDS NORTHWEST AT 4 MPH AT  
IGNITION...OTHERWISE LIGHT WINDS BECOMING NORTH  
6 TO 11 MPH EARLY IN THE MORNING.  
MIXING HEIGHT.......2300 FT AGL AT IGNITION...OTHERWISE 2000-3500  
FT AGL UNTIL 1200. 7000-8100 FT AGL AFTER 1400.  
TRANSPORT WINDS.....NORTHWEST 13 TO 21 MPH.  
HAINES INDEX........3 VERY LOW AT IGNITION...MAX 4.  
 
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM  
SKY (%).........44 32 20 16 11 6 6 7 7 8 9  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
LAL.............1 1 1 1 1 1 1 1 1 1 1  
TEMP............42 46 49 54 58 61 62 63 64 64 64  
RH..............79 68 58 48 40 36 35 32 31 31 31  
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW N N  
20 FT WIND SPD..3 5 7 8 9 9 9 8 7 7 7  
20 FT WIND GUST.5 15 15 20 20 20 20 20 15 15 15  
EYE LVL WND DIR.NW NW NW NW NW NW NW NW NW N N  
EYE LVL WND SPD.2 4 5 6 7 7 7 6 5 5 5  
EYE LVL WND GST.5 12 14 18 18 18 18 18 15 15 14  
MIX HGT (KFT)...2.3 2.1 2.0 3.5 5.0 6.5 7.0 7.6 8.1 7.5 7.0  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW N  
TRANSP WIND SPD.17 14 13 15 18 21 21 20 18 16 14  
HAINES INDEX....3 3 3 3 3 4 4 4 4 4 4  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
LAL.................NO TSTMS.  
TEMPERATURE.........MIN 39.  
RH..................MAX 89 PERCENT.  
EYE LEVEL WINDS.....EAST WINDS 6 TO 9 MPH.  
WIND (20 FT)........  
SLOPE/VALLEY.......EAST WINDS 6 TO 9 MPH.  
MIXING HEIGHT.......4600-6400 FT AGL UNTIL 2100. 700-1200 FT AGL  
AFTER 2400.  
TRANSPORT WINDS.....EAST 13 TO 17 MPH.  
HAINES INDEX........3 TO 4 VERY LOW TO LOW.  
 
TIME (CDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM  
SKY (%).........10 12 15 17 27 38 48 55 62 69 72 76  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............62 58 53 49 46 45 44 43 42 41 40 39  
RH..............33 39 48 58 65 70 73 76 79 82 85 85  
20 FT WIND DIR..N N NE NE NE E E E E E E E  
20 FT WIND SPD..6 7 6 5 5 5 5 5 6 6 6 6  
20 FT WIND GUST.15 15 10 10 10 10 10 10 10 10 10 10  
EYE LVL WND DIR.N N NE NE NE E E E E E E E  
EYE LVL WND SPD.5 5 4 4 4 4 4 4 4 4 4 4  
EYE LVL WND GST.15 15 10 10 10 10 10 10 10 10 10 10  
MIX HGT (KFT)...6.4 4.6 2.8 1.0 0.9 0.8 0.7 0.7 0.8 0.9 1.0 1.2  
TRANSP WIND DIR.N N NE NE NE E E E E E E E  
TRANSP WIND SPD.13 14 14 15 15 14 14 14 14 15 16 17  
HAINES INDEX....4 4 4 4 4 4 3 3 3 3 3 3  
   
FRIDAY
 
 
SKY/WEATHER.........PARTLY SUNNY.  
LAL.................NO TSTMS.  
TEMPERATURE.........MAX 57.  
RH..................MIN 40 PERCENT.  
EYE LEVEL WINDS.....EAST WINDS 7 TO 10 MPH.  
WIND (20 FT)........  
SLOPE/VALLEY.......EAST WINDS 7 TO 10 MPH.  
MIXING HEIGHT.......1300-3100 FT AGL UNTIL 1200. 5900-6300 FT AGL  
AFTER 1600.  
TRANSPORT WINDS.....EAST 16 TO 18 MPH.  
HAINES INDEX........3 VERY LOW.  
 
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM  
SKY (%).........79 76 76 76 76 77 77 76 72 70 67 59  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............39 41 43 46 49 52 54 55 56 57 57 56  
RH..............85 89 82 73 66 56 50 47 45 42 40 42  
20 FT WIND DIR..E E E E E E E E E E E E  
20 FT WIND SPD..6 6 7 8 8 8 8 8 8 7 7 7  
20 FT WIND GUST.10 10 15 15 15 15 15 15 15 15 15 15  
EYE LVL WND DIR.E E E E E E E E E E E E  
EYE LVL WND SPD.4 4 5 6 6 6 6 6 6 5 5 5  
EYE LVL WND GST.10 10 15 15 15 15 15 15 15 15 15 15  
MIX HGT (KFT)...1.3 1.6 1.8 2.1 3.1 4.0 5.0 5.4 5.8 6.3 6.1 5.9  
TRANSP WIND DIR.E SE SE SE SE SE SE E E E E E  
TRANSP WIND SPD.18 18 17 17 17 18 18 18 17 17 17 16  
HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3  
 

 
FORECASTER...BUTTLER  
REQUESTED BY...BILLY CUMBOW  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1707263.0/LBF  
.EMAIL BILLY_CUMBOW@FWS.GOV  
 
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