Weather Alert in South Dakota
Winter Storm Watch issued April 1 at 2:10PM CDT until April 4 at 7:00PM CDT by NWS Aberdeen SD
AREAS AFFECTED: Spink
DESCRIPTION: * WHAT...For the Winter Weather Advisory, mixed precipitation. Additional snow accumulations between 1 and 3 inches and ice accumulations around a light glaze. For the Winter Storm Watch, heavy mixed precipitation and areas of blowing snow possible. Total snow accumulations between 4 and 7 inches and ice accumulations around a light glaze possible. Winds could gust as high as 35 mph. * WHERE...Spink County. * WHEN...For the Winter Weather Advisory, until 7 PM CDT Thursday. For the Winter Storm Watch, from Friday morning through Saturday evening. * IMPACTS...Travel could be very difficult. Falling and blowing snow may lead to areas of quick and sudden reductions to visibility, making travel difficult, especially in rural areas that are prone to blowing snow. The hazardous conditions could impact the Wednesday evening and Thursday morning commutes.
INSTRUCTION: Monitor the latest forecasts for updates on this situation. 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 Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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
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