530  
FNUS73 KFSD 241129  
FWSFSD  
 
SPOT FORECAST FOR MOSQUITO CREEK UNIT B...YANKTON AGENCY  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
529 AM CST SAT FEB 24 2024  
 
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
MODERATING TEMPERATURES, CURED FUELS, AND BREEZY CONDITIONS WILL  
RESULT IN AN ENHANCED FIRE DANGER ACROSS THE AREA TODAY. LIGHT  
SOUTHERLY WINDS THIS MORNING WILL SLOWLY INCREASE THROUGH THE MID  
TO LATE MORNING WHILE BECOMING MORE SOUTHWESTERLY. BY EARLY  
AFTERNOON, WINDS WILL BECOME MORE WESTERLY WITH GUSTS OF 20 TO 25  
MPH. WITH DEEP MIXING TODAY, TEMPERATURES WILL CLIMB INTO THE  
LOWER 60S WITH AFTERNOON RH FALLING TO 20 TO 25 PERCENT. THESE  
FACTORS WILL RESULT IN NEAR CRITICAL FIRE CONDITIONS BY AFTERNOON.  
 
WHILE TEMPERATURES WILL BE SIMILAR ON SUNDAY, LIGHTER WINDS AND  
HIGHER RH WILL LESSEN THE FIRE DANGER.  
 
   
TODAY
 
 
MAX TEMPERATURE.....AROUND 63.  
MIN HUMIDITY........22 PERCENT.  
 
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY COVER.......CLR CLR CLR CLR CLR CLR CLR MCR MCR MCR CLR MCR  
SKY (%).........2 2 4 1 4 3 5 16 25 10 3 11  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............24 26 28 33 42 49 56 59 61 63 62 61  
DEWPOINT........22 24 25 26 26 25 24 24 23 23 24 24  
RH..............92 92 88 74 53 38 29 25 23 22 23 24  
20 FT WIND DIR..SSE S SSW SSW SW WSW W W W W W W  
20 FT WIND SPD..6 5 5 6 7 9 10 13 15 16 14 10  
20 FT WIND GUST. 9 10 14 17 18 21 23 24 24 20  
MIX HGT (KFT)...0.4 0.4 0.4 0.5 0.8 1.6 3.0 4.8 5.8 7.0 7.7 1.6  
TRANSP WIND DIR.S SSW SW WSW WSW W WNW WNW WNW W W W  
TRANSP WIND SPD.12 10 10 12 12 16 18 22 24 26 25 16  
HAINES INDEX....6 6 6 6 6 6 6 6 6 6 6 6  
SMOKE DISPERSAL.PR PR PR PR PR FR GD EX EX EX EX FR  
   
TONIGHT
 
 
MIN TEMPERATURE.....AROUND 33.  
MAX HUMIDITY........65 PERCENT.  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY COVER.......CLEAR CLEAR CLEAR MCLEAR MCLEAR MCLEAR  
SKY (%).........3 3 3 13 8 8  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
TEMP............58 49 44 41 38 35  
DEWPOINT........25 24 24 25 23 22  
RH..............28 38 46 52 54 59  
20 FT WIND......WSW 8 W 6 W 6 W 6 W 6 W 5  
20 FT WIND GUST.12 12 10 9 8 8  
MIX HGT (FT)....500 400 400 400 400 400  
TRANSPORT WIND..W 10 W 12 W 13 W 10 W 9 W 9  
HAINES INDEX....6 6 6 6 6 6  
SMOKE DISPERSAL.POOR POOR POOR POOR POOR POOR  
   
SUNDAY
 
 
MAX TEMPERATURE.....AROUND 60.  
MIN HUMIDITY........35 PERCENT.  
 
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......CLEAR CLEAR CLEAR MCLEAR MCLEAR MCLEAR  
SKY (%).........3 4 5 11 9 6  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
TEMP............33 35 46 56 60 60  
DEWPOINT........23 25 28 31 32 32  
RH..............65 65 49 39 35 35  
20 FT WIND......W 6 W 6 W 6 W 7 W 9 W 8  
20 FT WIND GUST.8 8 9 12 15 13  
MIX HGT (FT)....400 300 700 2100 3800 3300  
TRANSPORT WIND..WNW 8 W 7 WNW 7 W 10 W 16 W 14  
HAINES INDEX....5 5 5 5 5 5  
SMOKE DISPERSAL.POOR POOR POOR FAIR GOOD GOOD  
 

 
FORECASTER...JM  
REQUESTED BY...JUSTIN BAUER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2404489.0/FSD  
.DELDT 02/24/24  
.FORMATTERVERSION 2.0.0  
 
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