766 FNUS75 KBYZ 252020 FWSBYZ Spot Forecast for Across Corrals RX...BLM National Weather Service Billings MT 220 PM MDT Thu Sep 25 2025 Forecast is based on ignition time of 1500 MDT on September 25. If conditions become unrepresentative...contact the National Weather Service. Please contact our office if you have questions or concerns with this forecast. .DISCUSSION... Dry and clear skies will prevail through the forecast period for the burn site. Look for an increase in southerly winds overnight ahead of a dry frontal passage toward sunrise (7 am ish) turning winds to the northwest. Wind may remain somewhat elevated Friday morning, but strongest winds at the burn site are most likely in the early afternoon with peak gusts 28-35 mph. RH readings will drop to the lower to mid 20s range during this time. Expect a slow recovery of RH late Friday into the evening. BT .REST OF TODAY... Sky/weather.........Sunny. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....79-83. Min humidity........23-27 percent. Wind (20 ft)........ Slope/valley.......Light winds southeast 5-7 mph gust to 10 mph late in the afternoon. Ridgetop...........Southwest around 12 mph. Mixing height.......3500 ft AGL. Transport winds.....Southeast around 8 mph. TIME (MDT) 3PM 4PM 5PM Sky (%).........2 1 0 Weather cov..... Weather type.... Tstm cov........ Chc of ltng (%).0 0 0 Temp............80 81 80 RH..............25 26 27 20 FT wind dir..SE SE SE 20 FT wind spd..4 5 5 20 FT wind gust.7 7 8 .TONIGHT... Sky/weather.........Mostly clear. CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....54-57. Max humidity........53-59 percent. Wind (20 ft)........ Slope/valley.......Southeast winds 7-11 mph. Gusts up to 25 mph overnight. Ridgetop...........Southwest around 15 mph. Mixing height.......3500 ft AGL early in the evening decreasing to 300 ft AGL overnight. Transport winds.....Southeast around 10 mph shifting to the southwest around 16 mph overnight. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........3 5 9 9 10 10 9 9 5 6 2 3 Weather cov..... Weather type.... Tstm cov........ Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............78 72 68 65 64 61 61 59 58 57 57 57 RH..............29 34 38 42 44 47 50 52 54 53 50 49 20 FT wind dir..SE SE SE SE SE SE SE SE S S S S 20 FT wind spd..5 5 6 7 8 9 9 10 10 11 11 10 20 FT wind gust.10 10 12 14 17 18 21 20 20 19 19 21 .FRIDAY... Sky/weather.........Sunny. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....73-77. Min humidity........23-27 percent. Wind (20 ft)........ Slope/valley.......Southwest winds 5 to 11 mph shifting to the northwest 6 to 18 mph in the late morning and afternoon. Gusts up to 32 mph. Ridgetop...........West around 15 mph. Mixing height.......300 ft AGL early in the morning increasing to 4900 ft AGL in the afternoon. Transport winds.....Southwest around 16 mph shifting to the northwest around 24 mph in the afternoon. TIME (MDT) 6 AM 9 AM NOON 3 PM Sky (%).........5 0 9 4 Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ Chc of ltng (%).0 0 0 0 Temp............56 64 75 73 RH..............47 39 24 26 20 FT wind......S 10G19 W 11G23 NW 18G30 NW 16G28 $$ Forecaster...Tesar Requested by...Matt Harding Type of request...PRESCRIBED .TAG 2522422.3/BYZ .DELDT 09/25/25 .FormatterVersion 2.0.0 .EMAIL mharding@blm.gov