Smoke view Sept. 5

 

...AIR QUALITY ALERT IN EFFECT...

(NATIONAL WEATHER SERVICE/GREAT FALLS) - The Montana Department of Environmental Quality has issued an air quality alert for Beaverhead, Deer Lodge, Flathead, Granite, Jefferson, Lake, Lewis and Clark, Lincoln, Madison, Mineral, Missoula, Pondera, Powell, Ravalli, Sanders, Silver Bow, and Teton counties in effect until further notice due to wildfire smoke from fires in Montana and the Pacific Northwest.

Little improvement is expected through Friday with stable air present under a ridge of high pressure.

This alert will be updated again at 900AM 9/7/2017.

An Air Quality Alert means that particulates have been trending upwards and that an exceedence of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future. As of 900AM, Particulate levels in Arlee, Seeley Lake, and Trout Creek are Hazardous.

As of 900AM, Particulate levels in Clearwater, Columbia Falls, Eureka, Florence, Lincoln, Lolo, Rainy Lake, and Thompson Falls are Very Unhealthy \.

As of 900AM, Particulate levels in Condon, Frenchtown, Hamilton, Heart Butte, Libby, Missoula, Potomac, Stevensville, and Superior are Unhealthy.

As of 900AM, Particulate levels in Drummond, and Rock Creek are Unhealthy for Sensitive Groups.

As of 900AM, Particulate levels in Butte, Dillon, and Helena are Moderate.

When air quality is Hazardous...

State and local health officials recommend that everyone should avoid any outdoor exertion; people with respiratory or heart disease, the elderly, and children should remain indoors.

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.

When air quality is Moderate...

State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion.

For more information visit the Montana Department of Environmental Quality at http://todaysair.mt.gov