FNUS75 KBOI 161201 FWSBOI Spot Forecast for Mores South Burn Block 2...USFS National Weather Service Boise ID 601 AM MDT Fri Oct 16 2026 Forecast is based on ignition time of 0630 MDT on October 16. If conditions become unrepresentative...contact the National Weather Service. Please contact our office at (208)334-9060, if you have questions or concerns with this forecast. ...WARM AND DRY CONDITIONS... ...BETTER MIXING SATURDAY AND SUNDAY... .DISCUSSION... The upper-level ridge over the region will begin to breakdown Saturday/Sunday with passage of a weak trough to the north. Light diurnal valley winds, south-southeast in the afternoon, easterly in the morning. With the ridge significantly weakened by Sunday, mixing (as well as ventilation) improves to near 5000 AGL by Saturday and Sunday afternoons. Precipitation could occur as early as Tuesday afternoon, however, Wednesday/Thursday have the best chance with CWR peaking at 30%. Our current forecast has around 0.10" of rainfall total Tuesday through Thursday, though only about a 20% confidence in the timing and precip amount at this time. .REST OF TODAY... Sky/weather.........Sunny. Max temperature.....66 to 71. Min humidity........14 to 19 percent. CWR.................0 percent. Wind - 20 foot......Southeast 3 to 6 mph in the morning, becoming south 7 to 12 mph with gusts near 15 mph in the afternoon. Mixing height.......3000 ft AGL. Transport winds.....South around 15 mph. Ventilation Index...450 fair. .TONIGHT... Sky/weather.........Partly cloudy. Min temperature.....39 to 44. Max humidity........37 to 42 percent. CWR.................0 percent. Wind - 20 foot......Southeast around 7 mph. Mixing height.......200 ft AGL. Transport winds.....East around 10 mph. Ventilation Index...10 poor. .SATURDAY... Sky/weather.........Mostly sunny. Max temperature.....65 to 70. Min humidity........19 to 24 percent. CWR.................0 percent. Wind - 20 foot......South 3 to 7 mph. Mixing height.......4500 ft AGL. Transport winds.....Southwest around 15 mph. Ventilation Index...675 good. $$ Forecaster...Hood Requested by...Idaho City Ranger District Type of request...PRESCRIBED .TAG 2623662.3/BOI .DELDT 10/16/26 .FormatterVersion 2.0.0 .EMAIL nicolas.adamson@usda.gov