Air Quality Alert
Issued by NWS

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935
AEUS75 KTFX 061439
AQAMT
MTC001-023-039-053-061-081-089-071445-

URGENT - IMMEDIATE BROADCAST REQUESTED
AIR QUALITY ALERT
MONTANA DEPARTMENT OF ENVIRONMENTAL QUALITY HELENA MT
Relayed by National Weather Service Great Falls MT
Issued by National Weather Service Missoula MT
839 AM MDT Sat Sep 6 2025

...Air Quality Alert from the Montana Department of Environmental
Quality is in Effect...

The Montana Department of Environmental Quality has issued an air
quality alert for Beaverhead, Deer Lodge, Granite, Lincoln,
Mineral, Ravalli, Sanders counties in effect until 9AM on
09/07/2025 An Air Quality Alert means that particulates have been
trending upwards and that an exceedance of the 24 hour National
Ambient Air Quality Standard (NAAQS) has occurred or may occur in
the near future.

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 7AM on 09/06/2025, particulate levels in Hamilton and Libby
are Unhealthy for Sensitive Groups.

As of 7AM on 09/06/2025, particulate levels in Billings, Butte,
Columbia Falls, Dillon, Frenchtown, Helena, Lewistown, Missoula,
Seeley Lake, Thompson Falls and West Yellowstone are Moderate.

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.

For more information visit the Montana Department of Environmental
Quality at www.todaysair.mt.gov

$$