Weather Alert in South Dakota
Winter Weather Advisory issued February 18 at 3:46AM CST until February 18 at 3:00PM CST by NWS Aberdeen SD
AREAS AFFECTED: Spink; Clark
DESCRIPTION: * WHAT...Snow and patchy blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 55 mph. * WHERE...Clark and Spink Counties. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. Mainly drifting snow is expected, but in areas prone to blowing snow, the snow may be lofted and briefly reduce visibility. the combination of warm temperatures and drifting snow can cause snow to adhere to roads, creating icy patches. The hazardous conditions could impact the Wednesday morning commute. Strong winds could cause tree damage.
INSTRUCTION: Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1.
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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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