Weather Alert in Montana
Flash Flood Watch issued August 27 at 1:59AM MDT until August 28 at 12:00AM MDT by NWS Great Falls MT
AREAS AFFECTED: Northwest Beaverhead County
DESCRIPTION: * WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Big Hollow, Grouse, Sawlog, and South Fork burn scars. Rainfall amounts of 1 to 2 inches are possible in less than one hour from thunderstorms. * WHERE...A portion of southwest Montana, including the following area, Northwest Beaverhead County. * WHEN...From 9 AM MDT this morning through this evening. * IMPACTS...Heavy rainfall over the Big Hollow, Grouse, Sawlog, and South Fork burn scars is expected up to and during the period of the watch. Residents near the Big Hollow, Grouse, Sawlog, and South Fork burn scars should prepare for potential flooding impacts. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, urbanized street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - http://www.weather.gov/safety/flood
INSTRUCTION: PLAN NOW so you will know what to do in an emergency. Keep informed by listening to local radio and television for statements and possible warnings. Follow the advice of public safety officials.
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Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
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