978  
FNUS73 KFSD 251236  
FWSFSD  
 
SPOT FORECAST FOR HORSESHOE BEND FIRE...DICKINSON COUNTY CONSERVATION  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
736 AM CDT TUE JUL 25 2017  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
 
A MORNING SOUTHEAST WIND WILL SLOWLY TURN MORE TO THE SOUTH BY  
LATE MORNING AND MID-DAY EVENTUALLY ENDING UP TOWARDS THE SOUTH  
SOUTHWEST BY THE MID AFTERNOON HOURS. GUSTS UP TO 30 MPH WILL BE  
POSSIBLE AT PEAK MIXING THIS AFTERNOON. THE AREA SHOULD REMAIN DRY  
DURING THE DAYTIME HOURS, BUT THERE WILL BE AN INCREASING RAIN  
RISK BY WEDNESDAY.  
   
TODAY
 
 
MAX TEMPERATURE.....87-92.  
MIN HUMIDITY........54 PERCENT.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......MC MC PC PC PC PC MCR MCR MCR MCR MCR MCR  
SKY (%).........56 54 49 44 40 30 20 10 12 15 17 23  
WEATHER COV.....  
WEATHER TYPE....  
TEMP............66 67 69 72 76 80 83 85 86 88 90 90  
DEWPOINT........64 64 66 67 68 70 71 71 71 71 71 71  
RH..............93 90 89 84 76 72 68 64 61 57 54 54  
20 FT WIND DIR..SSE SSE SSE S S S S S S S S S  
20 FT WIND SPD..13 14 16 18 20 20 18 18 20 21 21 20  
20 FT WIND GUST.15 20 25 25 30 30 30 30 30 30 30 30  
SMOKE DISPERSAL.FR FR GD GD GD GD EX EX EX EX EX EX  
MIX HGT (KFT)...0.7 1.0 1.3 1.6 2.0 2.3 2.7 3.1 3.3 3.5 3.7 3.7  
TRANSP WIND DIR.SSE SSE S S S S S S S SSW SSW S  
TRANSP WIND SPD.25 32 32 32 32 31 30 29 29 30 29 28  
CHC OF PCPN (%).10 10 10 10 10 0 0 0 0 0 0 0  
HAINES INDEX....4 4 4 5 5 5 4 4 4 5 5 5  
   
TONIGHT
 
 
MIN TEMPERATURE.....68-73.  
MAX HUMIDITY........90 PERCENT.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY COVER.......PCLDY PCLDY MCLDY MCLDY MCLDY CLOUDY  
SKY (%).........29 46 68 78 86 92  
WEATHER COV..... CHANCE LIKELY  
WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR  
TEMP............88 84 80 77 74 73  
DEWPOINT........72 72 73 71 70 69  
RH..............59 67 79 82 87 87  
20 FT WIND......S 18 S 15 S 9 SSE 8 SSE 8 S 6  
20 FT WIND GUST.30 20 10 10 10  
SMOKE DISPERSAL.EXCEL FAIR POOR POOR POOR POOR  
MIX HGT (FT)....3700 2600 400 300 300 300  
TRANSPORT WIND..S 24 S 15 SE 6 SSE 8 SSE 9 S 7  
CHC OF PCPN (%).0 10 10 10 40 70  
HAINES INDEX....5 5 5 5 5 5  
 

 
FORECASTER...DUX  
REQUESTED BY...ARIC PING  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1713347.0/FSD  
 
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