007  
FNUS73 KFSD 201409  
FWSFSD  
 
SPOT FORECAST FOR USD EXPERIMENTAL 2017...VERMILLION FIRE / CLAY COUNTY EM  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
909 AM CDT FRI OCT 20 2017  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
TODAY WILL BE A WARM AND WINDY DAY. SOUTH WINDS WILL GUST TO  
35 TO 40 MPH FROM LATE MORNING INTO THE AFTERNOON.  
   
REST OF TODAY
 
 
MAX TEMPERATURE.....76-81.  
MIN HUMIDITY........46 PERCENT.  
 
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......PC PC PC MCR PC PC MC MC  
SKY (%).........33 30 27 23 27 40 53 60  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0  
TEMP............63 66 70 74 77 79 79 77  
DEWPOINT........52 53 55 55 56 56 57 57  
RH..............67 63 58 51 48 46 47 51  
20 FT WIND DIR..S S S S S S S S  
20 FT WIND SPD..17 18 21 22 23 24 24 23  
20 FT WIND GUST.26 29 31 35 36 36 36 36  
MIX HGT (KFT)...0.5 1.4 2.3 3.2 3.6 4.0 4.3 3.0  
TRANSP WIND DIR.S S S S S S S S  
TRANSP WIND SPD.31 35 38 40 43 44 43 38  
HAINES INDEX....5 5 4 4 4 3 3 3  
SMOKE DISPERSAL.PR GD EX EX EX EX EX EX  
   
TONIGHT
 
 
MIN TEMPERATURE.....57-62.  
MAX HUMIDITY........93 PERCENT.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY COVER.......MCLDY MCLDY MCLDY MCLDY MCLDY CLOUDY  
SKY (%).........66 75 79 80 87 98  
WEATHER COV..... S CHC CHANCE  
WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR  
TSTM COV........ S CHC CHANCE  
CHC OF PCPN (%).0 0 10 10 20 30  
TEMP............72 66 64 63 62 62  
DEWPOINT........57 58 59 58 59 60  
RH..............58 75 83 85 89 93  
20 FT WIND......S 22 S 18 S 20 S 18 S 18 S 18  
20 FT WIND GUST.31 28 28 28 28 28  
MIX HGT (FT)....1600 300 300 300 300 300  
TRANSPORT WIND..S 31 S 23 S 23 S 22 S 22 S 21  
HAINES INDEX....3 3 3 3 3 3  
SMOKE DISPERSAL.GOOD POOR POOR POOR POOR POOR  
   
SATURDAY
 
 
MAX TEMPERATURE.....64-69.  
MIN HUMIDITY........49 PERCENT.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......CLOUDY CLOUDY MCLDY MCLDY MCLDY MCLDY  
SKY (%).........92 88 86 83 80 76  
WEATHER COV.....CHANCE LIKELY LIKELY LIKELY CHANCE S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TSTM COV........CHANCE S CHC  
CHC OF PCPN (%).50 60 60 60 40 20  
TEMP............60 66 65 64 63 62  
DEWPOINT........59 59 58 51 46 44  
RH..............96 78 78 63 54 52  
20 FT WIND......S 14 S 13 SW 15 W 16 WNW 16 NW 16  
20 FT WIND GUST.20 17 21 24 25 24  
MIX HGT (FT)....300 300 300 1900 3200 4000  
TRANSPORT WIND..S 16 S 15 SW 17 WNW 25 NW 31 NW 31  
HAINES INDEX....3 3 3 2 2 3  
SMOKE DISPERSAL.POOR POOR POOR GOOD EXCEL EXCEL  
 

 
FORECASTER...WEISSER  
REQUESTED BY...KLUNDER / STEWART  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1717610.0/FSD  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab SD Page
The Nexlab IA Page
The Nexlab MN Page
The Nexlab NE Page Main Text Page