Weather Alert in Montana
Air Quality Alert issued September 5 at 8:48AM MDT by NWS Great Falls MT
AREAS AFFECTED: Beaverhead, MT; Deer Lodge, MT; Granite, MT; Mineral, MT; Missoula, MT; Powell, MT; Ravalli, MT; Sanders, MT
DESCRIPTION: AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Beaverhead, Deer Lodge, Granite, Mineral, Missoula, Powell, Ravalli, Sanders counties in effect until 9AM on 09/06/2025 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 6AM on 09/05/2025, particulate levels in Butte, Choteau, Cut Bank, Dillon, Frenchtown, Great Falls, Hamilton, Helena, Lewistown, Missoula, Seeley Lake, Sleeping Giant, Thompson Falls and West Yellowstone are Moderate. 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 is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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