865  
FNUS73 KFSD 201056  
FWSFSD  
 
SPOT FORECAST FOR HOLE IN THE MOUNTAIN...TNC  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
556 AM CDT WED MAY 20 2020  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
LOW CLOUDS, PERIODS OF DRIZZLE AND PERHAPS PATCHY FOG THIS  
MORNING WILL KEEP MIXING HEIGHTS VERY LOW THIS MORNING. THE  
DRIZZLE IS EXPECTED TO DECREASE THROUGHOUT THE MORNING, BUT THE  
CLOUDS WILL STICK THROUGH THE DAY. SOUTHEAST WINDS WILL BECOME  
GUSTY THROUGH THE AFTERNOON HOURS.  
   
TODAY
 
 
MAX TEMPERATURE.....61-66.  
MIN HUMIDITY........70 PERCENT.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......CDY CDY CDY CDY CDY CDY CDY CDY CDY CDY CDY CDY  
SKY (%).........100 100 100 100 100 100 100 100 100 100 100 100  
WEATHER COV.....PTY PTY PTY PTY PTY PTY PTY  
WEATHER TYPE....DZF DZF DZL DZL DZL DZL DZL  
TSTM COV........  
CHC OF PCPN (%).20 20 20 20 20 20 20 10 10 10 10 0  
TEMP............55 54 54 57 58 59 60 62 63 63 64 64  
DEWPOINT........52 52 52 53 53 54 55 55 55 54 54 54  
RH..............90 93 93 86 83 83 84 78 75 72 70 70  
20 FT WIND DIR..SSE SE SE SE SE SE SE SSE SSE SSE SSE SSE  
20 FT WIND SPD..8 9 10 12 13 13 13 13 14 14 14 14  
20 FT WIND GUST. 12 15 17 17 17 17 20 20 20 20  
MIX HGT (KFT)...0.3 0.3 0.3 0.4 0.5 0.8 1.1 1.3 1.6 1.9 2.2 2.3  
TRANSP WIND DIR.SSE SE SE SE SE SE SE SSE SSE SSE SSE SSE  
TRANSP WIND SPD.8 10 15 18 21 22 23 23 23 24 24 25  
HAINES INDEX....2 2 2 2 2 2 2 2 2 2 2 2  
SMOKE DISPERSAL.PR PR PR PR PR FR FR FR FR GD GD GD  
   
TONIGHT
 
 
MIN TEMPERATURE.....52-57.  
MAX HUMIDITY........93 PERCENT.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY COVER.......CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY  
SKY (%).........100 100 100 100 100 100  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 10 10 10  
TEMP............64 62 58 57 56 56  
DEWPOINT........53 53 53 53 53 53  
RH..............67 72 83 86 90 90  
20 FT WIND......SSE 14 SSE 13 SE 13 SSE 14 SSE 13 S 12  
20 FT WIND GUST.20 17 17 18 17 14  
MIX HGT (FT)....2400 1400 300 300 300 300  
TRANSPORT WIND..SSE 25 SSE 21 SE 15 SSE 15 SSE 15 S 13  
HAINES INDEX....2 2 2 2 2 2  
SMOKE DISPERSAL.GOOD FAIR POOR POOR POOR POOR  
   
THURSDAY
 
 
MAX TEMPERATURE.....64-69.  
MIN HUMIDITY........63 PERCENT.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY  
SKY (%).........100 100 100 100 100 100  
WEATHER COV..... S CHC S CHC  
WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 20 20  
TEMP............55 57 60 64 66 67  
DEWPOINT........52 53 54 54 54 54  
RH..............90 86 81 70 65 63  
20 FT WIND......SSE 10 SSE 13 SSE 15 SSE 15 SSE 14 SSE 14  
20 FT WIND GUST.13 16 22 21 20 20  
MIX HGT (FT)....300 400 800 1300 1900 2400  
TRANSPORT WIND..SSE 12 SSE 16 SSE 25 SSE 24 SSE 22 SSE 21  
HAINES INDEX....2 2 2 2 2 2  
SMOKE DISPERSAL.POOR POOR FAIR FAIR GOOD GOOD  
 

 
FORECASTER...BT  
REQUESTED BY...JOE BLASTICK  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2006977.0/FSD  
.DELDT 05/20/20  
.FORMATTERVERSION 1.0.25  
 
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