Last Updated: July 31, 2025 19:12:30
County | Thu. Jul. 31, 2025 | Fri. Aug. 1, 2025 | Sat. Aug. 2, 2025 | Advisory Message |
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Salt Lake | Moderate | Moderate | Moderate | Individuals are asked to voluntarily TravelWise by consolidating trips and choose cleaner transportation options. Limit volatile organic compound (VOC) emissions. Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Voluntary |
![]() Unrestricted |
![]() Unrestricted |
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Davis | Moderate | Moderate | Moderate | Individuals are asked to voluntarily TravelWise by consolidating trips and choose cleaner transportation options. Limit volatile organic compound (VOC) emissions. Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Voluntary |
![]() Unrestricted |
![]() Unrestricted |
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Utah | Moderate | Moderate | Moderate | Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Unrestricted |
![]() Unrestricted |
![]() Unrestricted |
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Weber | Moderate | Moderate | Moderate | Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Unrestricted |
![]() Unrestricted |
![]() Unrestricted |
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Box Elder | Moderate | Moderate | Moderate | Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Unrestricted |
![]() Unrestricted |
![]() Unrestricted |
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Cache | Moderate | Moderate | Moderate | Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Unrestricted |
![]() Unrestricted |
![]() Unrestricted |
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Tooele | Good | Good | Good | |
![]() Unrestricted |
![]() Unrestricted |
![]() Unrestricted |
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Wasatch | Moderate | Moderate | Moderate | Individuals are asked to voluntarily not use solid fuel burning devices, reduce/stop open burning, and reduce vehicle use by consolidating trips. Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Voluntary |
![]() Unrestricted |
![]() Unrestricted |
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Washington | Good | Good | Good | |
![]() Unrestricted |
![]() Unrestricted |
![]() Unrestricted |
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Iron | Good | Good | Good | |
![]() Unrestricted |
![]() Unrestricted |
![]() Unrestricted |
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Carbon | Moderate | Moderate | Moderate | Individuals are asked to voluntarily not use solid fuel burning devices, reduce/stop open burning, and reduce vehicle use by consolidating trips. Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Voluntary |
![]() Voluntary |
![]() Voluntary |
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Grand | Moderate | Moderate | Moderate | Individuals are asked to voluntarily not use solid fuel burning devices, reduce/stop open burning, and reduce vehicle use by consolidating trips. Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Voluntary |
![]() Voluntary |
![]() Voluntary |
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Duchesne | Moderate | Moderate | Moderate | Individuals are asked to voluntarily not use solid fuel burning devices, reduce/stop open burning, and reduce vehicle use by consolidating trips. Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Voluntary |
![]() Voluntary |
![]() Voluntary |
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Uintah | Moderate | Moderate | Moderate | Individuals are asked to voluntarily not use solid fuel burning devices, reduce/stop open burning, and reduce vehicle use by consolidating trips. Smoke from wild fires could cause high concentrations of particulates. If smoke becomes thick, persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity. Wild Fire Outlooks |
![]() Voluntary |
![]() Voluntary |
![]() Voluntary |
Action Forecast |
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Unrestricted Action![]() |
Voluntary Action![]() |
Mandatory Action![]() |
Health Forecast | ||
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Air Quality Index (AQI) | PM 2.5 | Ozone |
Good | 0 - 9.0 µg/m3 | 0 - 0.054 ppm |
Moderate | 9.1 - 35.4 µg/m3 | 0.055 - 0.070 ppm |
Unhealthy for Sensitive Groups | 35.5 - 55.4 µg/m3 | 0.071 - 0.085 ppm |
Unhealthy | 55.5 - 125.4 µg/m3 | 0.086 - 0.105 ppm |
Very Unhealthy | 125.5 - 225.4 µg/m3 | 0.106 - 0.200 ppm |
Hazardous | Above 225.5 µg/m3 | Above 0.201 ppm |
Based on a 24-hour average. | Based on an 8-hour average. |