Near-surface smoke will remain very limited across much of Idaho today as continued unsettled weather, breezy winds, and precipitation provide good dispersion. Areas of light smoke and haze will persist across portions of North and Central Idaho, with moderate concentrations near active wildfires. Across South Idaho, much of the Snake River Plain and East Idaho will remain relatively clear, while a diffuse plume of light smoke lingers across portions of southwest Idaho and the Great Basin.
Overnight into Friday morning, continued westerly to southwesterly flow and periods of precipitation will further reduce widespread near-surface smoke. Most smoke impacts will become confined to active wildfires and immediately downwind areas, with only scattered light smoke across portions of North and Central Idaho. South Idaho should remain largely free of widespread smoke, with any remaining Great Basin plume becoming increasingly diffuse.
Friday, cooler temperatures, scattered showers, and continued mixing will provide very good smoke dispersion across the state. The RRFS shows little organized near-surface smoke over Idaho, with only isolated light smoke near active fires and small pockets of transported smoke passing through portions of Central and East Idaho. Overall air quality should continue to improve, although localized impacts will remain possible near active wildfires. The highest AQI levels are expected near active wildfires, where periods of UNHEALTHY FOR SENSITIVE GROUPS air quality are possible.
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