Spot Forecast
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
422 FNUS73 KFSD 171302 FWSFSD Spot Forecast for Little Sioux - Calahan SE...DNR National Weather Service Sioux Falls SD 802 AM CDT Thu Apr 17 2025 If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Another warm and breezy day will be on tap with highs topping out in the mid to upper 70s this afternoon. Increasing southerly winds will become more northwesterly by the early evening (6pm-8pm) as a front passes through with wind gusts between 20-30 mph possible throughout the day. Increasing moisture ahead of the front will lead to shower and thunderstorm development from the early evening (6pm- 8pm) onwards which should keep our overall relative humidity values elevated. With this in mind, could some variability in wind direction and speeds as this activity pushes to the southeast. Nonetheless, another mixed day will promote good to very good smoke dispersal rates with high fire danger expected mostly due to the stronger winds speeds. .REST OF TODAY... Max temperature.....Around 75. Min humidity........49 percent. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MC MC MC MC MC MC MC MC MC MC Sky (%).........70 73 74 74 79 85 86 87 85 84 Weather cov..... CHC CHC CHC CHC SCH SCH CHC CHC Weather type.... RW RW RW RW RW RW RW RW Tstm cov........ SCH SCH SCH SCH Chc of pcpn (%).10 10 10 10 10 10 20 20 30 30 Chc of thdr (%).10 10 10 10 10 10 20 20 20 20 Temp............59 61 63 68 70 73 74 75 74 75 Dewpoint........45 48 52 54 55 56 57 57 57 58 RH..............59 63 67 61 59 55 55 54 55 56 20 FT wind dir..S S S S S S S S S S 20 FT wind spd..21 21 20 21 21 21 21 20 18 17 20 FT wind gust.29 29 30 31 31 30 30 29 28 25 Mix hgt (kft)...0.7 1.1 1.7 2.5 2.6 2.9 2.9 3.6 2.9 2.7 Transp wind dir.SSE S S S S S S S S S Transp wind spd.22 24 25 29 28 26 24 24 22 21 Smoke Dispersal.FR FR GD EX EX EX EX EX GD GD .TONIGHT... Min temperature.....Around 43. Max humidity........89 percent. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......MC MC MC MC MC MC MC MC MC MC MC CDY Sky (%).........85 86 85 85 80 74 71 68 74 81 85 88 Weather cov.....CHC LKY LKY LKY LKY CHC CHC SCH SCH CHC CHC CHC Weather type....RW RW RW RW RW RW RW RW RW RW RW RW Tstm cov........SCH CHC CHC CHC CHC CHC CHC SCH SCH SCH Chc of pcpn (%).50 70 70 70 60 40 30 20 20 30 30 30 Chc of thdr (%).20 50 50 50 40 40 30 20 20 20 10 10 Temp............74 71 65 61 58 54 52 50 49 47 47 45 Dewpoint........57 57 57 55 52 49 48 47 45 44 42 41 RH..............55 61 75 81 80 83 86 89 86 89 83 86 20 FT wind dir..S S SW W NW N N N N N N N 20 FT wind spd..16 14 13 12 14 15 16 16 16 17 18 18 20 FT wind gust.23 21 18 17 20 22 24 25 26 26 26 28 Mix hgt (kft)...1.8 1.0 0.6 1.1 0.7 1.3 1.3 1.3 1.3 1.3 1.4 1.3 Transp wind dir.S S SW NW N N N N N N N N Transp wind spd.18 14 13 13 18 22 24 23 24 24 24 23 Smoke Dispersal.FR PR PR PR PR FR FR FR FR FR FR FR .FRIDAY... Max temperature.....Around 52. Min humidity........56 percent. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......CDY CDY CDY CDY CDY CDY CDY MC MC MC MC MC Sky (%).........90 91 92 93 91 90 88 86 85 84 83 81 Weather cov.....CHC CHC CHC CHC CHC CHC CHC Weather type....RW RW RW RW RW RW RW Tstm cov........ SCH SCH SCH Chc of pcpn (%).30 30 30 30 30 30 30 10 10 10 10 10 Chc of thdr (%).10 20 20 20 10 10 10 0 0 0 10 10 Temp............45 44 44 44 45 47 49 50 51 52 52 52 Dewpoint........41 40 39 40 40 40 40 39 39 38 38 37 RH..............86 86 82 86 82 76 71 66 63 59 59 56 20 FT wind dir..N N N N N N N N N N N N 20 FT wind spd..18 18 20 20 20 21 21 21 21 20 20 18 20 FT wind gust.28 28 29 30 30 30 31 31 31 31 30 29 Mix hgt (kft)...1.6 1.6 1.9 1.8 2.1 2.4 2.7 3.0 3.3 3.5 3.7 3.5 Transp wind dir.N N N N N N N N N N N N Transp wind spd.26 24 25 25 25 25 25 24 23 23 22 22 Smoke Dispersal.GD GD GD GD GD GD GD EX EX EX EX EX $$ Forecaster...IG Requested by...Todd Perry Type of request...PRESCRIBED .TAG 2510865.0/FSD .DELDT 04/17/25 .FormatterVersion 2.0.0