660  
FNUS73 KLBF 091638  
FWSLBF  
 
SPOT FORECAST FOR SORENSON...USFWS  
NATIONAL WEATHER SERVICE NORTH PLATTE NE  
1138 AM CDT TUE MAY 9 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON MAY 09.  
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
 
 
   
TODAY
 
 
SKY/WEATHER.........CLOUDY THEN BECOMING PARTLY SUNNY.  
LAL.................NO TSTMS.  
TEMPERATURE.........67 AT IGNITION...MAX 69.  
RH..................41 PERCENT AT IGNITION...MIN 40 PERCENT.  
EYE LEVEL WINDS.....NORTHEAST WINDS 6 TO 13 MPH.  
WIND (20 FT)........  
SLOPE/VALLEY.......WINDS NORTHEAST AT 6 MPH AT  
IGNITION...OTHERWISE NORTHEAST WINDS 6 TO 13  
MPH WITH GUSTS TO AROUND 25 MPH.  
MIXING HEIGHT.......400-1900 FT AGL UNTIL 1000. 4300-5000 FT AGL  
AFTER 1500.  
TRANSPORT WINDS.....NORTH 7 TO 15 MPH SHIFTING TO THE NORTHEAST 8  
TO 17 MPH IN THE LATE MORNING AND EARLY  
AFTERNOON, THEN DECREASING TO 7 TO 10 MPH EARLY  
IN THE AFTERNOON.  
HAINES INDEX........2 VERY LOW AT IGNITION...MAX 3.  
 
TIME (CDT) 1PM 2PM 3PM 4PM 5PM 6PM  
SKY (%).........67 71 75 76 77 78  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
LAL.............1 1 2 2 2 2  
TEMP............67 69 69 69 69 68  
RH..............41 40 40 42 42 43  
20 FT WIND DIR..NE NE NE NE NE NE  
20 FT WIND SPD..5 5 5 5 5 5  
20 FT WIND GUST.10 10 10  
EYE LVL WND DIR.NE NE NE NE NE NE  
EYE LVL WND SPD.4 4 4 4 4 4  
EYE LVL WND GST.10 10 10  
MIX HGT (KFT)...4.3 4.5 4.7 5.0 4.7 4.3  
TRANSP WIND DIR.NE NE NE NE NE NE  
TRANSP WIND SPD.9 8 7 7 9 10  
HAINES INDEX....2 2 2 2 2 2  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SHOWERS IN THE EVENING.  
ISOLATED THUNDERSTORMS THROUGH THE NIGHT.  
SHOWERS AFTER MIDNIGHT.  
LAL.................NO TSTMS INCREASING TO 9-15 STRIKES IN THE LATE  
EVENING AND OVERNIGHT.  
TEMPERATURE.........MIN 50.  
RH..................MAX 93 PERCENT.  
EYE LEVEL WINDS.....NORTHEAST WINDS 5 TO 6 MPH.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTHEAST WINDS 5 TO 6 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS IN THE LATE  
EVENING AND OVERNIGHT.  
MIXING HEIGHT.......2900-4000 FT AGL UNTIL 2100, THEN 400-1800 FT  
AGL.  
TRANSPORT WINDS.....NORTHEAST 7 TO 13 MPH.  
HAINES INDEX........2 VERY LOW.  
 
TIME (CDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM  
SKY (%).........79 80 81 81 80 82 82 85 88 91 93 96  
WEATHER COV..... SCH SCH SCH CHC CHC CHC LKY LKY DEF DEF DEF  
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........ ISO ISO ISO ISO ISO ISO ISO ISO ISO  
LAL.............2 2 2 4 4 4 5 5 5 5 5 5  
TEMP............67 64 62 60 58 56 55 54 52 51 50 50  
RH..............45 50 56 60 64 69 72 74 83 86 89 93  
20 FT WIND DIR..NE NE NE NE NE NE NE NE NE NE NE NE  
20 FT WIND SPD..5 5 5 4 4 4 4 5 5 5 5 5  
20 FT WIND GUST. 5 5 5 5  
EYE LVL WND DIR.NE NE NE NE NE NE NE NE NE NE NE NE  
EYE LVL WND SPD.4 4 4 3 3 3 3 4 4 4 4 4  
EYE LVL WND GST. 5 5 5 5  
MIX HGT (KFT)...4.0 2.9 1.8 0.6 0.6 0.5 0.4 0.5 0.6 0.7 0.7 0.8  
TRANSP WIND DIR.NE NE NE N NE NE NE NE NE NE NE NE  
TRANSP WIND SPD.13 13 12 12 10 10 9 9 8 7 7 8  
HAINES INDEX....2 2 2 2 2 2 2 2 2 2 2 2  
 

 
FORECASTER...ROBERG  
REQUESTED BY...BEN PATTEN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1708344.1/LBF  
.EMAIL 1979MTNMAN@BLM.GOV  
 
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