173  
FNUS73 KABR 110858  
FWSABR  
 
SPOT FORECAST FOR DEWALD WPA...USFWS  
NATIONAL WEATHER SERVICE ABERDEEN SD  
358 AM CDT TUE MAY 11 2021  
 
FORECAST IS BASED ON A STARTING TIME OF 0900 CDT ON MAY 11.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE IN ABERDEEN SD.  
   
DISCUSSION
 
 
HIGH PRESSURE OVER THE REGION WILL MAKE FOR CLEAR SKIES AND LIGHT  
WINDS OUT OF THE SOUTH SOUTHEAST TUESDAY MORNING, BECOMING PARTLY  
CLOUDY IN THE AFTERNOON. RELATIVE HUMIDITY IN THE REGION WILL  
DROP BELOW 30 BY TUESDAY AFTERNOON, HOWEVER WINDS ARE EXPECTED TO  
REMAIN RELATIVELY LIGHT WITH GUSTS 10-15 MPH.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT CLOUD).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....60-65.  
MIN HUMIDITY........25-30 PERCENT.  
WIND (20 FT)........SOUTH WINDS 9 TO 10 MPH.  
MIXING HEIGHT.......7100-8100 FT AGL.  
TRANSPORT WINDS.....SOUTH 2 TO 7 MPH.  
SMOKE DISPERSAL.....POOR (9000-24500).  
HAINES INDEX........5 OR (MODERATE).  
 
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........4 3 1 3 8 16 23 29 26  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............48 51 53 55 57 58 59 60 60  
RH..............46 42 38 35 33 30 28 27 27  
20 FT WIND DIR..S S S S S S S S S  
20 FT WIND SPD..9 10 10 10 9 9 10 10 10  
20 FT WIND GUST.14 14 13 12 13 14 15 15 15  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT CLOUD).  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....34-39.  
MAX HUMIDITY........54-59 PERCENT.  
WIND (20 FT)........SOUTH WINDS 8 TO 10 MPH.  
MIXING HEIGHT.......500-1500 FT AGL.  
TRANSPORT WINDS.....SOUTH 5 TO 14 MPH INCREASING TO 12 TO 17 MPH  
OVERNIGHT.  
SMOKE DISPERSAL.....POOR (3700-53200).  
HAINES INDEX........5 OR (MODERATE).  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........33 30 29 17 15 7 8 7 17 16 17 18  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............59 59 56 52 49 46 45 43 42 41 40 40  
RH..............28 29 35 41 48 53 55 57 55 57 57 57  
20 FT WIND DIR..SE SE SE SE SE SE S S S S S S  
20 FT WIND SPD..10 10 10 8 8 8 8 8 9 10 10 9  
20 FT WIND GUST.15 15 15 12 12 12 12 12 14 15 15 14  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT CLOUD).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....62-67.  
MIN HUMIDITY........34-39 PERCENT.  
WIND (20 FT)........SOUTH WINDS 9 TO 17 MPH. GUSTS UP TO 25 MPH IN  
THE LATE MORNING.  
MIXING HEIGHT.......5800-6800 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 17 MPH.  
SMOKE DISPERSAL.....POOR (5200-104900).  
HAINES INDEX........5 OR (MODERATE).  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........16 20 14 22 28 22 37 52 54 55 57 54  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............39 40 45 50 54 57 59 61 61 62 62 61  
RH..............59 59 55 50 48 45 44 41 39 36 38 42  
20 FT WIND DIR..S S S S S S S S S S S S  
20 FT WIND SPD..9 10 10 14 14 15 16 16 17 17 17 17  
20 FT WIND GUST.14 15 15 20 20 22 23 23 24 25 25 24  
 

 
FORECASTER...DYE  
REQUESTED BY...SONYA FEASTER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2112154.0/ABR  
.DELDT 05/11/21  
.FORMATTERVERSION 1.0.26  
.EMAIL SONYA_FEASTER@FWS.GOV  
 
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