Weather Alert in Wisconsin
Winter Storm Watch issued April 2 at 2:21AM CDT until April 4 at 10:00AM CDT by NWS Green Bay WI
AREAS AFFECTED: Vilas; Florence; Northern Marinette County
DESCRIPTION: * WHAT...For the Winter Storm Warning, heavy mixed precipitation expected. Total snow and sleet accumulations up to one inch and ice accumulations up to one quarter of an inch. For the Winter Storm Watch, significant icing possible. Total ice accumulations between one tenth and three tenths of an inch possible. * WHERE...Vilas, Florence, and Northern Marinette counties. * WHEN...For the Winter Storm Warning, from 5 AM early this morning to 1 AM CDT Friday. For the Winter Storm Watch, from Friday evening through Saturday morning. * IMPACTS...Power outages and tree damage are possible due to the ice. Travel could be hazardous due to icy roads. The hazardous conditions will impact the Thursday morning and evening commutes.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. For the Winter Storm Watch, monitor the latest forecasts for updates on this situation.
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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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