Weather Alert in Wisconsin
Winter Storm Warning issued March 13 at 9:26PM CDT until March 16 at 4:00PM CDT by NWS Green Bay WI
AREAS AFFECTED: Wood; Portage; Waupaca; Outagamie; Brown; Kewaunee; Waushara; Winnebago; Calumet; Manitowoc
DESCRIPTION: * WHAT...Heavy snow expected. The snow will mix with or change over to sleet, freezing rain and rain at times late Saturday night into Sunday evening. Total snow and sleet accumulations between 12 and 18 inches and ice accumulations around one tenth of an inch. Winds gusting as high as 45 mph may result in considerable blowing and drifting snow and possible blizzard conditions Sunday night into Monday. * WHERE...Portage, Waushara, Wood, Calumet, Manitowoc, Winnebago, Brown, Kewaunee, Outagamie, and Waupaca Counties. * WHEN...From 7 PM Saturday to 4 PM CDT Monday. * IMPACTS...Travel could be very difficult to impossible with potential for whiteout conditions. Gusty winds could bring down tree branches and cause power outages. The Monday morning commute will be impacted.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. People should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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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
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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