Weather Alert in Utah

Recent Locations: Avoca, MI   Rio Oso, CA   Alton, UT  

Winter Weather Advisory issued April 1 at 12:36PM MDT until April 3 at 9:00AM MDT by NWS Salt Lake City UT

AREAS AFFECTED: Wasatch Mountains I-80 North; Wasatch Mountains South of I-80; Western Uinta Mountains

DESCRIPTION: * WHAT...Snow expected initially above 8000ft, dropping below valley floors following a cold front. Snow accumulations of 6 to 12 inches across northern UT mountains, with amounts in excess of 18 inches in the Upper Cottonwoods. * WHERE...The Wasatch Mountains, and Western Uinta Mountains. * WHEN...From 3 AM Thursday to 9 AM MDT Friday. * IMPACTS...Winter driving conditions are expected. * ADDITIONAL DETAILS...Snow levels will start off around 8000 feet before dropping below valley floors as a cold front progresses across northern UT through the early afternoon Thursday. Snowfall rates are forecast to be heaviest in the early hours just ahead of and along the cold front. Snowfall rates will then gradually taper off Thursday afternoon into Friday morning.

INSTRUCTION: Slow down and use caution while traveling. For winter road conditions from the Utah Department of Transportation, visit http://www.udottraffic.utah.gov. For graphical depictions of the snowfall forecast, including Official NWS Forecast, High End Amount, and Low End Amount, visit weather.gov/slc/winter.

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Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

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

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

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