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 are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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