570  
FNUS73 KFSD 101419  
FWSFSD  
 
SPOT FORECAST FOR LUTON WEST RAND...IA DNR  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
919 AM CDT FRI MAY 10 2024  
 
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
WINDS THROUGH MID-MORNING MAY BE LIGHT AND VARIABLE, BUT WILL  
EVENTUALLY FIND A MORE CONSISTENT WEST TO NORTHWESTERLY FETCH. BY  
EARLY AFTERNOON WE SHOULD SEE NORTHWEST WINDS INCREASE UP TO 25  
MPH AT TIMES. WINDS THROUGHOUT THE MIXED LAYER INDICATE A  
NORTHWESTERLY DIRECTION, AND WITH MIXING HEIGHTS APPROACHING 5500  
FT AGL SMOKE DISPERSION SHOULD BE EXCELLENT.  
 
THERE MAY BE A VERY SLIGHT CHANCE FOR A SPRINKLE OR BRIEF SHOWER  
AT MID-AFTERNOON, HOWEVER A WIDESPREAD WETTING RAIN IS NOT  
EXPECTED.  
 
   
REST OF TODAY
 
 
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........33 PERCENT.  
 
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......MC MC MC MC MC MC MC PC  
SKY (%).........58 57 56 56 55 54 68 48  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 10 10 10 0  
TEMP............61 65 68 71 73 74 74 74  
RH..............70 63 57 51 44 38 34 33  
20 FT WIND DIR..WNW WNW NW NW NW NW NW NW  
20 FT WIND SPD..12 13 14 15 17 18 18 18  
20 FT WIND GUST.14 16 20 22 24 25 26 25  
MIX HGT (KFT)...1.4 2.7 4.8 6.3 7.2 8.2 8.6 8.3  
TRANSP WIND DIR.WNW WNW WNW NW NW NW NW NW  
TRANSP WIND SPD.13 15 20 22 25 26 25 25  
HAINES INDEX....5 5 5 5 5 5 5 5  
SMOKE DISPERSAL.FR GD EX EX EX EX EX EX  
   
TONIGHT
 
 
MAX HUMIDITY........76 PERCENT.  
 
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
RH..............33 36 49 59 66 74  
20 FT WIND......NW 17 NNW 13 NNW 9 NW 7 NW 6 NW 6  
20 FT WIND GUST.24 20 14 9 8 9  
   
SATURDAY
 
 
MIN HUMIDITY........26 PERCENT.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
RH..............76 66 48 35 27 26  
20 FT WIND......WNW 6 WNW 6 WNW 7 WNW 9 WNW 12 WNW 10  
20 FT WIND GUST.7 7 9 14 17 16  
 

 
FORECASTER...APT  
REQUESTED BY...DOUG CHAFA  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2413695.0/FSD  
.DELDT 05/10/24  
.FORMATTERVERSION 2.0.0  
 
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