Spot Forecast
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
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308 FNUS75 KMSO 140045 FWSMSO Spot Forecast for Blue Bay Fire National Weather Service Missoula MT 645 PM MDT Sat Sep 13 2025 Forecast is based on forecast start time of 1900 MDT on September 13. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Diurnal/terrain driven winds likely overnight tonight. West winds, cloud cover and chances for rain and thunderstorms increasing during the late afternoon and evening Sunday. Drier with further cooling by Monday. High chance to receive wetting rain late Sunday into the overnight. 25% chance to receive 0.55" or more in a 24 hour period from 2000 MDT Sunday MDT through Monday evening. .REST OF TONIGHT... * Sky/Weather.........Partly cloudy, very slight chance shower or thunderstorm in the evening. Becoming mostly clear overnight. * CWR (> 0.10 Inch)...Less than 10 percent. * Chance Lightning....Less than 10 percent. * Min Temperature.....48-53. * Max Humidity........76-81 percent. * Wind (20 ft)........West/upslope 2-5 mph becoming downslope/downvalley 1-4 mph with gusts up to 10 mph overnight. * Mixing Height.......Decreasing to less than 500 ft agl overnight. * Mixing Winds........South 5 mph. * Precip Amount.......0.00-0.03 inches. .SUNDAY... * Sky/Weather.........Partly cloudy. Slight chance of rain and thunderstorms in the afternoon. * CWR (> 0.10 Inch)...10 percent. * Chance Lightning....10 percent. * Max Temperature.....63-68. * Min Humidity........42-47 percent. * Wind (20 ft)........Downslope/downvalley 1-4 mph in the morning becoming west 3-8 mph with gusts up to 20 mph in the afternoon. * Mixing Height.......Increasing to 3000 ft agl in the afternoon. * Mixing Winds........Southwest 8 mph. * Precip Amount.......0.00-0.03 inches. .SUNDAY NIGHT... * Sky/Weather.........Cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then rain likely overnight. * CWR (> 0.10 Inch)...85 percent. * Chance Lightning....25 percent. * Min Temperature.....42-47. * Max Humidity........89-94 percent. * Wind (20 ft)........Variable/southwest 2-6 mph with gusts up to 15 mph. * Mixing Height.......Decreasing to less than 500 ft agl overnight. * Mixing Winds........Southwest 10 mph. * Precip Amount.......0.13-0.44 inches. $$ Forecaster...Parker/Leach Requested by...Vanessa Garfield Type of request...WILDFIRE .TAG 2521929.0/MSO .DELDT 09/13/25 .FormatterVersion 2.0.0 .EMAIL vanessa.garfield@cskt.org