175 FNUS73 KBIS 071005 FWSBIS Spot Forecast for hb 29 30 31...fws National Weather Service Bismarck ND 505 AM CDT Wed May 7 2025 Forecast is based on ignition time of 0700 CDT on May 07. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Sunny/clear skies and dry conditions are expected today through Thursday. For today, expect light southeasterly winds at around 10 mph this morning to increase to around 20 mph with gusts up to 30 mph this afternoon. Minimum relative humidity will drop to around 25 percent which may lead to near-critical fire weather conditions. Winds will become southerly and remain breezy through the night with relative humidity recovering to around 61 percent. Windy conditions out of the south at 15 to 25 mph with gusts up to 35 mph are then expected for Thursday. These winds combined with minimum relative humidity values around 20 percent will result in near-critical to critical fire weather conditions Thursday. .REST OF TODAY... Sky/weather.........Sunny. CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 70. Min humidity........25 percent. Wind (20 ft)........Southeast winds 10 mph increasing up to 20 mph with gusts up to 30 mph in the late afternoon. Mixing height.......6300 ft AGL. Transport winds.....Southeast 14 to 20 mph. Smoke dispersal.....Poor (5500 knot-ft) early in the morning increasing to very good (100200 knot-ft) in the afternoon. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........25 20 14 9 12 8 8 6 4 1 3 Weather cov..... Weather type.... Tstm cov........ CWR.............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 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 Temp............37 40 46 50 54 58 62 64 66 68 69 RH..............67 58 47 39 34 30 28 27 26 25 25 20 FT wind dir..SE SE SE SE SE SE SE SE SE SE SE 20 FT wind spd..8 9 10 11 12 12 12 14 15 17 19 20 FT wind gust.14 14 17 18 19 20 20 20 21 24 27 Mix hgt (kft)...0.5 0.9 1.2 1.7 2.1 3.3 4.1 5.1 5.7 6.1 6.3 Transp wind dir.SE SE SE SE SE S S S S S S Transp wind spd.14 15 14 15 14 15 15 16 17 18 20 Dispr kt-ft/1K..6 12 14 23 25 43 53 71 85 92 100 .TONIGHT... Sky/weather.........Mostly clear. CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Min temperature.....Around 50. Max humidity........61 percent. Wind (20 ft)........South winds around 15 mph with gusts to around 25 mph. Mixing height.......500 ft AGL. Transport winds.....South 16 to 21 mph. Smoke dispersal.....Very good (106100 knot-ft) early in the evening decreasing to poor (7800 knot-ft) late in the night. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%).........3 8 8 3 4 4 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 0 0 Chc of pcpn (%).0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 Temp............69 66 57 55 53 52 RH..............25 29 42 45 50 56 20 ft wind......S 16 S 15 SE 14 S 15 S 16 S 16 20 ft wind gust.24 22 21 24 24 25 Mix hgt (ft)....6200 2600 500 600 700 700 Transport wind..S 20 S 20 S 17 S 18 S 20 S 20 Dispr kt-ft/1K..106 44 8 10 11 13 .THURSDAY... Sky/weather.........Sunny. CWR.................0 percent. Chance of pcpn......0 percent. Chance of thunder...0 percent. Max temperature.....Around 85. Min humidity........20 percent. Wind (20 ft)........South winds 15 to 25 mph with gusts to around 35 mph. Mixing height.......10500 ft AGL. Transport winds.....Southwest 20 increasing to 30 mph in the afternoon. Smoke dispersal.....Poor (11500 knot-ft) early in the morning increasing to excellent (214900 knot-ft) in the afternoon. TIME (CDT) 6 AM 10 AM 2 PM Sky (%).........7 2 5 Weather cov..... Weather type....NONE NONE NONE Tstm cov........ CWR.............0 0 0 Chc of pcpn (%).0 0 10 Chc of thdr (%).0 0 0 Temp............51 67 81 RH..............61 43 25 20 FT wind......S 16G26 S 21G31 S 25G35 Mix hgt (ft)....700 1800 7700 Transport wind..S 20 SW 29 SW 30 Dispr kt-ft/1K..12 44 198 $$ Forecaster...TELKEN Requested by...calvin moldenhauer Type of request...PRESCRIBED .TAG 2513295.0/BIS .DELDT 05/07/25 .FormatterVersion 2.0.0 .EMAIL calvin_moldenhauer@fws.gov