FNUS75 KMSO 161940 FWSMSO Spot Forecast for Alder Ditch National Weather Service Missoula MT 140 PM MDT Fri Oct 16 2026 Forecast is based on ignition time of 1300 MDT on October 17. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...The current valley inversions break between 11am and noon on Saturday. This will increase ventilation and mixing heights, along with transport winds. Additionally, winds will increase during the afternoon southwesterly 15-25 mph with gusts up to 30 mph. High pressure quickly rebuilds Sunday with stable conditions. Ventilation and mixing heights are squashed, while transport weaken. .SATURDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....64-69. * Min Humidity........22-27 percent. * Wind (20 ft)........Southwest 17-25 mph with gusts to around 30 mph. * Mixing Height.......5500 ft agl. * Mixing Winds........West 30 mph. * Precip Amount.......0.00 inches. .SATURDAY NIGHT... * Sky/Weather.........Partly cloudy. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Min Temperature.....35-40. * Max Humidity........74-79 percent. * Wind (20 ft)........Southwest 5-15 mph with gusts to around 30 mph in the evening becoming variable 3-6 mph. * Mixing Height.......1000 ft agl decreasing to 500 ft agl in the late evening and overnight. * Mixing Winds........West 10 mph. * Precip Amount.......0.00 inches. .SUNDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....56-61. * Min Humidity........36-41 percent. * Wind (20 ft)........Variable 3-6 mph. * Mixing Height.......3000 ft agl. * Mixing Winds........Southwest 5 mph. * Precip Amount.......0.00 inches. $$ Forecaster...BEC Requested by...Art Trahan Type of request...PRESCRIBED .TAG 2623892.0/MSO .DELDT 10/16/26 .FormatterVersion 2.0.0 .EMAIL nick.mays@cskt.org,jack.currie@cskt.org,Darrell.Clairmont@cskt.org,art.trahan@cskt.org