Weather Alert in Montana
Air Quality Alert issued September 3 at 8:55AM MDT by NWS Great Falls MT
AREAS AFFECTED: Flathead, MT; Glacier, MT; Lake, MT; Lincoln, MT; Mineral, MT; Missoula, MT; Powell, MT; Sanders, MT
DESCRIPTION: AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Flathead, Lake, Lincoln, Mineral, Missoula, Powell, Sanders, Glacier counties in effect until 9AM on 09/04/2025 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. Elevated particulate levels from wildfire smoke As of 8AM on 09/03/2025, particulate levels in Great Falls are Unhealthy for Sensitive Groups. As of 8AM on 09/03/2025, particulate levels in Billings, Butte, Columbia Falls, Cut Bank, Glendive, Hamilton, Havre, Lewistown, Seeley Lake, Sidney and Thompson Falls are Moderate. 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.mtdeq.us
INSTRUCTION: N/A
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Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
Weather Topic: What is Drizzle?
Home - Education - Precipitation - Drizzle
Next Topic: Evaporation
Drizzle is precipitation in the form of water droplets which are
smaller than raindrops.
Drizzle is characterized by fine, gently falling droplets and typically does not
impact human habitation in a negative way. The exception to this is freezing drizzle,
a condition where drizzle freezes immediately upon reaching earth's surface.
Freezing drizzle is still less dangerous than freezing rain, but can
potentially result in hazardous road conditions.
Next Topic: Evaporation
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