Spot Forecast
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
795 FNUS73 KFSD 121125 FWSFSD Spot Forecast for PIPE unit 1 and 3...NPS National Weather Service Sioux Falls SD 625 AM CDT Tue May 12 2026 If conditions become unrepresentative, contact the National Weather Service. ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING... .DISCUSSION... Critical fire weather conditions are expected this afternoon as winds increase with gusts around 40 mph likely. The relative humidity will also drop to less than 25 percent in the afternoon. .REST OF TODAY... Max temperature.....Around 73. Min humidity........23 percent. TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR CLR CLR CLR MCR MCR MCR CLR CLR Sky (%).........9 2 0 3 6 6 6 2 2 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 Temp............63 65 68 70 71 72 72 72 73 Dewpoint........41 40 40 37 37 35 33 33 33 RH..............44 40 36 30 29 26 24 24 23 20 FT wind dir..NW NW NW NW NW NW NW NW NW 20 FT wind spd..20 22 23 24 28 30 31 29 28 20 FT wind gust.31 31 36 38 39 38 39 37 37 Mix hgt (kft)...2.6 3.8 5.1 6.3 7.0 7.9 8.1 8.0 7.9 Transp wind dir.NW NW NW NW NW NW NW NW NW Transp wind spd.29 31 33 35 37 38 37 37 37 Smoke Dispersal.EX EX EX EX EX EX EX EX EX .TONIGHT... Min temperature.....Around 42. Max humidity........76 percent. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......CLR CLR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR Sky (%).........1 5 9 12 14 24 15 8 10 7 6 10 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............71 70 67 60 57 55 53 51 49 46 44 44 Dewpoint........32 32 33 33 34 34 34 34 34 34 34 35 RH..............24 24 28 36 42 45 48 52 56 63 68 70 20 FT wind dir..NNW NNW NNW NNW NNW NNW NNW NNW NNW NW NW NW 20 FT wind spd..26 24 18 14 10 9 7 7 6 5 5 3 20 FT wind gust.36 33 28 23 18 16 13 12 9 8 8 7 Mix hgt (kft)...7.8 7.6 2.1 0.8 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 Transp wind dir.NNW NNW NNW NNW N N N N N N NNW N Transp wind spd.37 36 23 17 14 13 13 12 12 10 9 9 Smoke Dispersal.EX EX GD PR PR PR PR PR PR PR PR PR .WEDNESDAY... Max temperature.....Around 76. Min humidity........21 percent. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR MCR MCR CLR CLR CLR CLR CLR CLR MCR MCR MCR Sky (%).........9 10 7 4 3 1 1 2 5 18 25 23 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............42 44 48 53 62 66 69 72 74 74 75 76 Dewpoint........35 35 36 37 36 36 36 35 34 34 33 33 RH..............76 70 63 54 38 33 30 26 23 23 21 21 20 FT wind dir..NW NNW NW N NNW NNW NNW NNW NNW NNW NNW NNW 20 FT wind spd..3 3 3 3 5 5 6 7 6 6 7 7 20 FT wind gust.6 6 6 6 7 9 12 13 13 12 12 10 Mix hgt (kft)...0.4 0.4 0.9 1.9 3.1 5.5 6.8 7.8 8.1 8.6 8.7 8.6 Transp wind dir.NNW N NNW NNW NNW NNW NNW NNW NNW NNW NNW NW Transp wind spd.8 8 9 12 13 16 16 15 14 14 13 13 Smoke Dispersal.PR PR PR FR GD EX EX EX EX EX EX EX $$ Forecaster...Weisser Requested by...Kenn Perreault Type of request...PRESCRIBED .TAG 2613069.4/FSD .DELDT 05/12/26 .FormatterVersion 2.0.0 .EMAIL kenn_perreault@nps.gov,dan_swanson@nps.gov