Weather Alert in South Dakota
Winter Storm Watch issued March 13 at 2:54AM CDT until March 15 at 7:00PM CDT by NWS Aberdeen SD
AREAS AFFECTED: Stanley; Sully; Hughes; Jones; Lyman; Buffalo
DESCRIPTION: * WHAT...Blizzard conditions possible. Total snow accumulations between 4 and 7 inches possible. Winds could gust as high as 45 mph. * WHERE...A portion of central South Dakota. * WHEN...From Saturday afternoon through Sunday evening. * IMPACTS...Travel could be very difficult. Whiteout conditions may make travel extremely dangerous or impossible. Gusty winds could bring down tree branches.
INSTRUCTION: Prepare for possible blizzard conditions. Continue to monitor the latest forecasts for updates on this situation.
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Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - 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
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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