564  
FNUS73 KABR 011343  
FWSABR  
 
SPOT FORECAST FOR LASSLE-BIFFERT WPA...US FISH AND WILDLIFE SERVICE  
NATIONAL WEATHER SERVICE ABERDEEN SD  
743 AM CST FRI DEC 1 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 1100 MST ON DECEMBER 01.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE IN ABERDEEN SD.  
   
DISCUSSION
 
 
A WEAK SYSTEM TRAVELS OVERHEAD TODAY WITH LITTLE MORE THAN A MIX OF  
HIGH AND MID CLOUDS. SKIES SHOULD CLEAR FOR MOST OF THE AREA BY  
EVENING AS WELL. DRY AND MILD CONDITIONS REMAIN THE RULE THROUGH  
THE WEEKEND BEFORE TEMPERATURES RETURN TO A MORE WINTERLIKE RANGE.  
   
TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT CLOUD), THEN  
BECOMING SUNNY (5-15 PERCENT CLOUD).  
MAX TEMPERATURE.....48-53.  
MIN HUMIDITY........27-32 PERCENT.  
WIND (20 FT)........WEST WINDS 7 TO 10 MPH.  
CWR.................0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......700-1700 FT AGL.  
TRANSPORT WINDS.....WEST 5 TO 10 MPH, INCREASING TO 14 TO 19 MPH  
LATE IN THE MORNING.  
SMOKE DISPERSAL.....POOR (1500-26300).  
HAINES INDEX........4 TO 5 (LOW) TO (MODERATE).  
 
TIME (MST) 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........79 65 51 36 27 17 7  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............43 48 50 50 46 40 36  
RH..............40 34 31 31 35 46 56  
20 FT WIND DIR..W W W W W W W  
20 FT WIND SPD..9 10 10 9 8 7 7  
20 FT WIND GUST.15 15 15 15 10 10 10  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT CLOUD).  
MIN TEMPERATURE.....21-26.  
MAX HUMIDITY........87-92 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 5 TO 7 MPH.  
CWR.................0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......100-600 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 9 TO 17 MPH, DECREASING TO AROUND 7  
MPH LATE.  
SMOKE DISPERSAL.....POOR (1600-2900).  
HAINES INDEX........4 TO 5 (LOW) TO (MODERATE).  
 
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........8 3 2 2 3 4 5 5 6 15 24 33  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............33 32 31 30 29 28 27 26 25 25 24 24  
RH..............63 69 72 78 78 85 85 88 92 92 92 84  
20 FT WIND DIR..W W W W SW SW W W SW SW W SW  
20 FT WIND SPD..7 7 7 7 7 7 7 6 6 6 6 5  
20 FT WIND GUST.10 10 10 10 10 10 10 10 10 10 10  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT CLOUD).  
MAX TEMPERATURE.....48-53.  
MIN HUMIDITY........32-37 PERCENT.  
WIND (20 FT)........LIGHT AND VARIABLE WINDS, BECOMING SOUTH 5 TO 7  
MPH IN THE LATE MORNING.  
CWR.................0 PERCENT.  
LAL.................1.  
MIXING HEIGHT.......100-600 FT AGL, INCREASING TO 1700-2500 FT AGL  
LATE IN THE MORNING, THEN, DECREASING TO 300 FT  
AGL LATE.  
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH, INCREASING TO 15 TO 20 MPH  
LATE IN THE MORNING, THEN, DECREASING TO 6 TO  
11 MPH EARLY IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (1600-33700).  
HAINES INDEX........5 (MODERATE).  
 
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........36 42 45 43 40 38 32 19 13 16 21 24  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............24 25 29 34 40 46 49 50 49 46 41 37  
RH..............88 84 75 64 52 42 37 34 36 40 48 56  
20 FT WIND DIR..SW SW S S S S S S S S S S  
20 FT WIND SPD..3 3 3 5 6 7 7 7 6 6 5 5  
20 FT WIND GUST.5 5 5 10  
 

 
FORECASTER...MOHR  
REQUESTED BY...ERIC HOGGARTH  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1719516.0/ABR  
.EMAIL ERIC_HOGGARTH@FWS.GOV  
 
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