Weather Alert in Montana
High Wind Warning issued February 24 at 11:39PM MST until February 25 at 11:00PM MST by NWS Great Falls MT
AREAS AFFECTED: East Glacier Park Region; Northern High Plains; Southern Rocky Mountain Front; Southern High Plains
DESCRIPTION: * WHAT...For the first High Wind Warning, west winds 40 to 50 mph with gusts up to 85 mph expected. For the second High Wind Warning, west winds 45 to 55 mph with gusts up to 90 mph expected. Winds may gust over 100 mph at times along the immediate eastern slopes of the Rocky Mountain Front. * WHERE...The Rocky Mountain Front and adjacent foothills and plains. * WHEN...For the first High Wind Warning, until 11 PM MST Wednesday. For the second High Wind Warning, from midnight Wednesday Night to 11 AM MST Friday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be dangerous, especially for high profile or light weight vehicles. * ADDITIONAL DETAILS...Those operating high profile or light weight vehicles should consider delaying travel.
INSTRUCTION: People are urged to secure loose objects that could be blown around or damaged by the wind. Monitor the latest forecasts and warnings for updates.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
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.
Next Topic: Stratocumulus Clouds
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