166 FNUS73 KFSD 111331 FWSFSD Spot Forecast for Little Sioux Savanna...IOWA DNR National Weather Service Sioux Falls SD 831 AM CDT Mon Apr 11 2022 If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... Winds through 9 am will be a bit terrain dependent as overnight inversion begins to mix out. The early day lighter winds will be on the increase as mixing depth rapidly increases late morning into the midday hours. However, sustained winds should stay around 15 mph, with occasional gusts to 20 to 25 mph through peak heating today. Humidity levels will also decrease fairly rapidly at time of wind increase. It should be noted that each of the wind and humidity parameters are likely to be near critical this afternoon for a few hours. Winds should decouple rapidly this evening with a direction change to southeast, with an increase through the remainder of the night. .REST OF TODAY... Max temperature.....58-63. Min humidity........26 percent. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR Sky (%).........9 10 11 12 12 11 11 13 10 11 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 Temp............34 40 45 49 52 57 58 59 60 60 Dewpoint........30 33 35 34 32 30 28 27 25 25 RH..............84 77 68 57 46 35 32 29 26 26 20 FT wind dir..W W W W W WSW WSW WSW WSW WSW 20 FT wind spd..8 9 10 12 12 13 13 14 14 14 20 FT wind gust.14 14 14 17 20 21 23 23 23 20 Mix hgt (kft)...0.5 1.0 1.6 2.8 4.4 5.6 6.8 7.3 7.8 7.9 Transp wind dir.W W W W W W W WSW WSW SW Transp wind spd.10 9 10 12 16 18 20 18 18 16 Haines index....5 5 5 5 5 6 6 6 6 6 Smoke dispersal.PR PR FR FR GD EX EX EX EX EX .TONIGHT... Min temperature.....39-44. Max humidity........70 percent. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky cover.......MCLEAR MCLEAR MCLEAR PCLDY PCLDY MCLDY Sky (%).........12 8 18 29 36 74 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 0 10 Temp............59 53 47 44 43 43 Dewpoint........26 28 28 28 30 32 RH..............28 38 47 53 60 65 20 ft wind......SW 13 S 8 SSE 8 SSE 10 SSE 13 SE 14 20 ft wind gust.17 12 12 17 20 21 Mix hgt (ft)....7600 1300 300 400 500 700 Transport wind..SW 14 S 12 S 12 S 16 S 18 S 21 Haines index....6 6 6 6 5 5 Smoke dispersal.EXCEL POOR POOR POOR POOR POOR .TUESDAY... Max temperature.....60-65. Min humidity........66 percent. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky cover.......MCLDY MCLDY MCLDY MCLDY MCLDY MCLDY Sky (%).........80 85 80 79 78 77 Weather cov..... CHANCE CHANCE CHANCE CHANCE CHANCE Weather type....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........ CHANCE Chc of pcpn (%).10 30 30 30 30 30 Temp............43 44 50 52 56 59 Dewpoint........34 36 39 45 50 54 RH..............70 73 66 77 80 83 20 ft wind......SSE 17 SE 18 SE 25 SE 29 SE 28 SSE 24 20 ft wind gust.25 29 39 43 40 36 Mix hgt (ft)....900 1300 2100 2100 1900 1800 Transport wind..SE 26 SE 31 SSE 39 SSE 37 SSE 31 S 24 Haines index....5 5 5 5 4 4 Smoke dispersal.FAIR GOOD EXCEL EXCEL GOOD GOOD $$ Forecaster...Chapman Requested by...Lucas Straw Type of request...PRESCRIBED .TAG 2208804.0/FSD .DELDT 04/11/22 .FormatterVersion 1.0.25