698  
FNUS73 KFSD 221212  
FWSFSD  
 
SPOT FORECAST FOR BAUER WPA RX...U.S. FISH & WILDLIFE  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
712 AM CDT TUE MAY 22 2018  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
EXPECT A DAMP EARLY DAY WITH SOME PATCHY LIGHT FOG. WINDS AND MIXING  
HEIGHTS WILL BE SLOW TO INCREASE THIS MORNING, BUT BY THE NOON HOUR  
YOU SHOULD FIND SMOKE DISPERSION TRANSITIONING THROUGH FAIR AND GOOD.  
INCREASING NEAR SURFACE MOISTURE WILL LEAVE MINIMUM HUMIDITY FAIRLY  
HIGH TODAY, LIKELY NO LESS THAN 45 PERCENT. A CHANCE FOR SCATTERED  
THUNDERSTORMS WILL BEGIN LATER THIS EVENING AND CONTINUE OVERNIGHT,  
POTENTIALLY PRODUCING LOCALLY HEAVY RAINFALL.  
 
   
REST OF TODAY
 
 
MAX TEMPERATURE.....80-85.  
MIN HUMIDITY........45 PERCENT.  
 
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......PC MCR MCR MCR PC MCR MCR PC  
SKY (%).........41 22 24 23 26 25 25 31  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 10 10 10 10 10  
TEMP............70 74 77 79 80 82 82 83  
DEWPOINT........57 58 59 60 60 59 59 60  
RH..............63 57 54 52 51 47 46 46  
20 FT WIND DIR..SSE SSE SE SE SE SE SE SE  
20 FT WIND SPD..8 8 9 9 10 10 10 10  
20 FT WIND GUST. 13 14 16 15  
MIX HGT (KFT)...0.8 1.9 3.0 4.1 4.5 4.8 5.2 5.4  
TRANSP WIND DIR.SSE SSE SSE SSE SSE SSE SSE SE  
TRANSP WIND SPD.10 12 12 12 13 14 15 15  
HAINES INDEX....3 3 3 3 3 3 3 3  
SMOKE DISPERSAL.PR FR FR GD GD GD EX EX  
   
TONIGHT
 
 
MIN TEMPERATURE.....60-65.  
MAX HUMIDITY........93 PERCENT.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY COVER.......PCLDY PCLDY MCLDY MCLDY MCLDY CLOUDY  
SKY (%).........36 46 55 72 83 89  
WEATHER COV..... S CHC CHANCE CHANCE CHANCE CHANCE  
WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........ S CHC CHANCE CHANCE CHANCE CHANCE  
CHC OF PCPN (%).10 20 30 40 50 50  
TEMP............82 78 71 67 66 65  
DEWPOINT........60 61 61 61 62 62  
RH..............47 56 71 81 87 90  
20 FT WIND......SE 10 SE 9 ESE 8 ESE 8 ESE 9 SE 9  
20 FT WIND GUST.13 10 10 10  
MIX HGT (FT)....5400 3500 300 300 300 300  
TRANSPORT WIND..SE 15 SE 13 ESE 9 ESE 10 ESE 10 SE 10  
HAINES INDEX....3 3 3 4 4 5  
SMOKE DISPERSAL.EXCEL GOOD POOR POOR POOR POOR  
   
WEDNESDAY
 
 
MAX TEMPERATURE.....84-89.  
MIN HUMIDITY........47 PERCENT.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......MCLDY MCLDY MCLDY MCLDY PCLDY PCLDY  
SKY (%).........83 72 57 52 46 34  
WEATHER COV.....CHANCE S CHC S CHC S CHC S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........CHANCE S CHC S CHC S CHC S CHC S CHC  
CHC OF PCPN (%).30 20 20 20 20 20  
TEMP............63 66 72 80 85 87  
DEWPOINT........62 63 64 65 65 64  
RH..............97 92 76 61 52 47  
20 FT WIND......SE 12 SE 13 SE 13 SSE 15 SSE 16 SSE 17  
20 FT WIND GUST.15 17 17 22 25 26  
MIX HGT (FT)....300 500 900 2300 3400 4400  
TRANSPORT WIND..SE 13 SE 15 SSE 16 SSE 17 SSE 20 SSE 21  
HAINES INDEX....5 5 5 5 5 5  
SMOKE DISPERSAL.POOR POOR POOR GOOD GOOD EXCEL  
 

 
FORECASTER...CHAPMAN  
REQUESTED BY...CODY ST CLAIR  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1810463.0/FSD  
.DELDT 05/22/18  
 
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