FNUS76 KOTX 050949 FWSOTX Spot Forecast for Joint Chiefs Hand Piles @ Rondo Gulch...USFS National Weather Service Spokane WA 149 AM PST Thu Nov 5 2026 Forecast is based on ignition time of 0600 PST on November 05. .DISCUSSION... A quick moving weather system moves through the project on Thursday, with light rain up to 0.16 inches expected. It will be moist with high minimum afternoon relative humidity. Winds will be out of the south to southwest during the day before shifting to the east-southeast in the evening. Mixing height forecasts have trended down for this afternoon, resulting in a decrease in the expected ventilation compared to previous forecasts. Another weather system Friday into Saturday brings up to an additional 0.08 inches of rain. Yet another weather system Saturday night into Sunday will result in stronger southwest winds and better ventilation in the afternoon, The weather pattern remains active through the middle of next week with periods of increased chances for preciptiation. If conditions become unrepresentative, contact the National Weather Service. *************************************************************** Forecasts for 20 foot wind speeds (valleys and ridge tops) are 10 minute averages reflecting RAWS wind. ***Ventilation Index is derived from transport wind multiplied by the mixing height divided by 100. Categories: low (< 200), moderate (200-500), high (500-800), and very high (> 800). *************************************************************** .TODAY... Sky/weather.........Mostly cloudy. Rain likely in the morning, then 35% chance of rain showers in the afternoon. 24-hour rain totals between 0.04 and 0.16 inches. CWR.................45 percent. Chance of lightning.5 percent. Max temperature.....43. Min humidity........85-90 percent. Wind (20 ft)........South-southwest winds 3 to 7 mph in the morning becoming southwest 4 to 8 mph in the afternoon. Gusts up to 15 mph in the afternoon. Mixing height.......Inversion lifting around 1000 hours with mixing height as high as 1500 ft AGL between 1200-1400 hours. Transport winds.....Southwest 5 to 8 mph mph. Ventilation Index...Low (150). .TONIGHT... Sky/weather.........Partly cloudy. Patchy fog in the evening. CWR.................0 percent. Chance of lightning.0 percent. Min temperature.....35. Max humidity........95-100 percent. Wind (20 ft)........East-southeast 2 to 6 mph. Mixing height.......Falling to near surface around 1600 hours. Transport winds.....Southeast 7 to 9 mph. Ventilation Index...Low (35). .FRIDAY... Sky/weather.........Mostly cloudy. CWR.................0 percent. Chance of lightning.0 percent. Max temperature.....45. Min humidity........55-60 percent. Wind (20 ft)........Southeast winds 2 to 6 mph in the morning becoming south 4 to 9 mph in the afternoon. Gusts up to 15 mph in the afternoon. Mixing height.......Inversion lifting around 1000 hours with mixing height as high as 2000 ft AGL between 1200-1400 hours. Transport winds.....Southeast 5 to 8 mph in the morning becoming south-southwest 6 to 10 mph in the afternoon. Ventilation Index...Low (171). .FORECAST DAYS 3 THROUGH 5... .SATURDAY... Mostly cloudy. 20% chance of rain in the morning. 24-hour rain totals up to 0.08 inches. Lows in the lower 40s. Highs in the mid 50s. East winds 1 to 4 mph. Low ventilation. .SUNDAY... Mostly cloudy. 40% chance of rain in the morning. 24-hour rain totals up to 0.21 inches. Lows in the lower 40s. Highs in the upper 40s. South to southwest winds 6 to 10 mph with gusts up to 21 mph in the afternoon. Moderate ventilation in the afternoon. .MONDAY... Mostly cloudy. Lows in the upper 30s. Highs in the upper 40s. East winds 0 to 2 mph. $$ Forecaster...VT Requested by...Patrick Warker Type of request...PRESCRIBED .TAG 2625022.3/OTX .DELDT 11/05/26 .FormatterVersion 2.0.0 .EMAIL kyle.mann@usda.gov,patrick.warker@usda.gov,evan.a.ratcliffe@usda.gov,carl.coppert@usda.gov