Weather Alert in Utah
Winter Weather Advisory issued February 17 at 2:29PM MST until February 18 at 5:00PM MST by NWS Salt Lake City UT
AREAS AFFECTED: Zion National Park; Upper Sevier River Valleys; South Central Utah
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 1 to 4 inches with higher totals up to 10 inches above 7000 feet. * WHERE...South Central Utah, Upper Sevier River Valleys, and Zion National Park. * WHEN...From 8 PM this evening to 5 PM MST Wednesday. * IMPACTS...Winter driving conditions are likely. * ADDITIONAL DETAILS...Heaviest snowfall is expected between 6 AM to 11 AM, with more showery conditions continuing through the remainder of the afternoon.
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 is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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