Smoke is affecting the entire state today, prompting Air Quality Alerts in every county. Large amounts of smoke has pushed in, following the cold front from the north, coupled with the wildfire smoke from western Montana and northwestern US.

This has caused very widespread UNHEALTHY conditions. Isolated storms and shifting winds later today and into tomorrow may offer relief to some areas.

Particulate levels are ranging between Unhealthy for Sensitive Groups and Very Unhealthy across Montana.

When air quality is Very Unhealthy... State and local health officials recommend that people with respiratory or heart disease, the elderly, and children should avoid any outdoor activity; everyone else should avoid prolonged exertion.

When air quality is Unhealthy... State and local health officials recommend that people with respiratory or heart disease, the elderly, and children should avoid prolonged exertion; everyone else should limit prolonged exertion.

When air quality is Unhealthy for Sensitive Groups... State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion.