FNUS73 KBIS 151133 FWSBIS Spot Forecast for Auto Tour...USFWS National Weather Service Bismarck ND 633 AM CDT Wed Apr 15 2026 Forecast is based on ignition time of 1000 CDT on April 15. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Weak surface high pressure over the region today, with dry and mild weather through this afternoon. A weather disturbance will drive a cold front through the area on Thursday, resulting in a wind shift from south to northwest, along with temperatures trending cooler and relative humidity higher. .REST OF TODAY... Sky/weather.........Sunny. CWR.................1 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 70. Min humidity........31 percent. Wind (20 ft)........Southwest winds 10 to 14 mph. Mixing height.......9300 ft AGL. Transport winds.....Southwest 14 to 15 mph. Smoke dispersal.....Poor (11400 knot-ft) early in the morning increasing to very good (104400 knot-ft) in the afternoon. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........7 7 8 9 12 15 19 25 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 Chc of pcpn (%).0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 Temp............53 58 62 65 68 69 70 70 RH..............71 62 52 45 39 35 32 32 20 FT wind dir..S SW SW SW SW SW SW SW 20 FT wind spd..11 12 13 14 13 12 12 10 20 FT wind gust.15 17 19 20 20 19 17 15 Mix hgt (kft)...0.9 1.6 3.4 5.5 8.0 8.7 9.3 8.5 Transp wind dir.SW SW SW SW W W W W Transp wind spd.14 14 15 15 15 15 15 14 Dispr kt-ft/1K..11 19 44 71 104 113 121 102 .TONIGHT... Sky/weather.........Partly cloudy. CWR.................1 percent. Chance of pcpn......0 percent. Chance of thunder...1 percent. Min temperature.....Around 44. Max humidity........76 percent. Wind (20 ft)........Southwest winds 7 to 9 mph shifting to the south 6 to 10 mph in the late evening and overnight. Mixing height.......100 ft AGL. Transport winds.....Southwest 9 to 12 mph shifting to the south 9 to 17 mph in the late evening and overnight. Smoke dispersal.....Good (73000 knot-ft) early in the evening decreasing to poor (800 knot-ft) late in the night. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........30 36 37 37 37 36 34 32 34 36 39 40 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 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............70 68 65 60 56 55 53 51 50 49 47 47 RH..............31 35 40 47 53 57 61 63 68 68 74 74 20 FT wind dir..SW SW S S S S S S S S S SE 20 FT wind spd..9 8 7 6 6 6 7 8 8 9 9 10 20 FT wind gust.13 12 10 10 9 10 11 11 12 13 14 14 Mix hgt (kft)...7.3 2.1 0.5 0.1 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 Transp wind dir.SW SW SW S S S S SE S S S S Transp wind spd.12 10 9 9 9 9 10 12 13 14 15 17 Dispr kt-ft/1K..73 19 4 1 3 3 3 3 3 4 5 6 .THURSDAY... Sky/weather.........Mostly sunny. CWR.................2 percent. Chance of pcpn......10 percent. Chance of thunder...2 percent. Max temperature.....Around 65. Min humidity........40 percent. Wind (20 ft)........Southeast winds 11 to 17 mph shifting to the west around 18 mph late in the afternoon. Gusts up to 29 mph. Mixing height.......5300 ft AGL. Transport winds.....Southeast 20 to 21 mph shifting to the west around 21 mph late in the afternoon. Smoke dispersal.....Poor (8900 knot-ft) early in the morning increasing to good (95000 knot-ft) in the afternoon. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........42 40 52 45 37 38 39 40 37 34 31 39 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Chc of pcpn (%).0 0 0 0 0 0 0 10 10 10 10 10 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............46 45 47 49 54 58 61 63 64 65 65 64 RH..............76 76 74 71 59 53 50 46 45 41 40 41 20 FT wind dir..SE SE S SE SE SE SE S S W W NW 20 FT wind spd..11 12 13 14 15 15 16 16 17 18 18 18 20 FT wind gust.17 18 19 20 21 22 22 22 24 25 25 25 Mix hgt (kft)...0.5 0.7 1.0 1.3 1.7 1.9 2.3 2.8 3.8 4.8 5.3 4.8 Transp wind dir.S SE SE SE E SE S S SW W W W Transp wind spd.20 21 21 21 21 21 21 21 21 21 21 21 Dispr kt-ft/1K..9 13 18 24 30 35 41 50 67 85 95 87 $$ Forecaster...HEINERT Requested by...Jeff Dion Type of request...PRESCRIBED .TAG 2610387.0/BIS .DELDT 04/15/26 .FormatterVersion 2.0.0 .EMAIL jeff_dion@fws.gov