FNUS73 KBIS 191850 FWSBIS Spot Forecast for Trap Pasture...TNC National Weather Service Bismarck ND 150 PM CDT Tue May 19 2026 Forecast is based on ignition time of 1400 CDT on May 19. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... This afternoon will reach a high of 56, with a minimum relative humidity of 37 percent by 6pm. Winds will continue to be out of the northwest around 9mph, gusting to 17mph. After 6pm the winds will calm and slowly change to the south overnight. After midnight the south winds will increase 10 to 20 mph by 5am. Overnight humidities will recover to 76 percent. .REST OF TODAY... Sky/weather.........Partly Cloudy. CWR.................3 percent. Chance of pcpn......10 percent. Chance of thunder...0 percent. Max temperature.....Around 56. Min humidity........37 percent. Wind (20 ft)........Northwest winds 9 mph, gust to 17 mph. Mixing height.......6200 ft AGL. Transport winds.....Northwest 14 to 17 mph. Smoke dispersal.....Good (71200 knot-ft). TIME (CDT) 2PM 3PM 4PM 5PM Sky (%).........59 40 26 13 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 Chc of pcpn (%).10 10 0 0 Chc of thdr (%).0 0 0 0 Temp............48 50 52 54 RH..............54 48 44 41 20 FT wind dir..NW NW NW NW 20 FT wind spd..9 8 8 8 20 FT wind gust.14 15 15 14 Mix hgt (kft)...5.9 6.1 6.2 6.2 Transp wind dir.NW NW NW NW Transp wind spd.14 16 17 16 Dispr kt-ft/1K..71 86 93 87 .TONIGHT... Sky/weather.........Mostly clear. CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Min temperature.....Around 35. Max humidity........79 percent. Wind (20 ft)........Northwest winds 8 to 13 mph early in the evening becoming light, then becoming south 10 to 20 mph after midnight. Mixing height.......400 ft AGL. Transport winds.....Northwest 8 to 14 mph shifting to the south 6 to 15 mph in the late evening increasing to around 16 mph early in the morning. Smoke dispersal.....Good (69700 knot-ft) early in the evening decreasing to poor (1800 knot-ft) late in the night. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........10 6 9 12 12 16 8 8 15 30 38 34 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............56 56 54 48 45 42 41 39 38 37 37 37 RH..............37 37 41 54 60 67 70 73 76 75 75 75 20 FT wind dir..NW NW NW SE SE SE S S S S S S 20 FT wind spd..8 6 4 3 3 4 5 6 7 9 10 11 20 FT wind gust.13 11 7 5 5 6 8 10 12 14 15 18 Mix hgt (kft)...5.8 5.4 2.7 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 Transp wind dir.NW NW NW SW SE S S S S S S S Transp wind spd.14 12 8 5 6 8 9 12 14 15 15 16 Dispr kt-ft/1K..70 54 19 2 2 3 3 4 5 6 6 7 $$ Forecaster...SMITH Requested by...Chris Gordon Type of request...PRESCRIBED .TAG 2614042.0/BIS .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL chris_gordon@tnc.org