FNUS75 KBYZ 201232 FWSBYZ Spot Forecast for Dry Head 2...BIA National Weather Service Billings MT 632 AM MDT Wed Aug 20 2025 Forecast is based on forecast start time of 0800 MDT on August 20. If conditions become unrepresentative...contact the National Weather Service. Please contact our office if you have questions or concerns with this forecast. ...HEAT ADVISORY IN EFFECT UNTIL 9 PM MDT THIS EVENING... .DISCUSSION... A cold front moving through late this afternoon will shift winds to the north and bring gusts around 20-30 mph through the evening, although there is a 15% chance of gusts exceeding 40 mph. The most likely timeframe for stronger winds is from 1700 to 2200 MDT. There is also a small chance (less than 10%) of thunderstorms associated with the front during the same timeframe, which would cause erratic winds gusts around 30-40 mph. .REST OF TODAY... Sky/weather.........Mostly sunny. Haze and areas of smoke early in the morning. CWR.................0 percent. Chance of lightning.4 percent. Max temperature.....96-100. Min humidity........9-13 percent. Wind (20 ft)........ Slope/valley.......South winds 6 to 12 mph shifting to the north 5 to 10 mph in the afternoon, with gusts around 30 mph. Ridgetop...........Southwest around 15 mph shifting to the north in the afternoon. Mixing height.......900 ft AGL early in the morning increasing to 8400 ft AGL in the afternoon increasing to 7700 ft AGL early in the morning increasing to 12200 ft AGL in the afternoon late in the afternoon. Transport winds.....Southwest around 15 mph shifting to the north in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. CWR.................Less than 5 percent. Chance of lightning.8 percent. Min temperature.....59-63. Max humidity........62-66 percent. Wind (20 ft)........ Slope/valley.......Northwest winds 5 to 10 mph, with gusts around 30 mph in the evening. Ridgetop...........Northwest around 15 mph. Mixing height.......5200 ft AGL early in the evening decreasing to 800 ft AGL overnight. Transport winds.....Northwest around 11 mph. $$ Forecaster...Archer Requested by...ECK Type of request...WILDFIRE .TAG 2520289.0/BYZ .DELDT 08/20/25 .FormatterVersion 2.0.0 .EMAIL mtbdc@firenet.gov