Weather Alert in Montana
Flash Flood Watch issued August 26 at 2:53AM MDT until August 28 at 12:00AM MDT by NWS Great Falls MT
AREAS AFFECTED: Missouri Headwaters; Madison River Valley; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
DESCRIPTION: * WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the recent burn scars across Madison County. Rainfall amounts of 1 to 2 inches are possible in less than one hour from thunderstorms. * WHERE...The recent burn scars across Madison County, with the greatest impacts from debris flow possible on the Cloudrest, Bivens Creek, and McAllister burn scars. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...Heavy rainfall over the recent burn scars across Madison County is expected up to and during the period of the watch. Residents near the recent burn scars across Madison County 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 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 is Snow?
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Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
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Weather Topic: What are Stratus Clouds?
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Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
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