Weather Alert in Wisconsin
Ice Storm Warning issued April 1 at 9:02PM CDT until April 2 at 10:00AM CDT by NWS La Crosse WI
AREAS AFFECTED: Jackson
DESCRIPTION: ...FREEZING RAIN IMPACTS THE AREA FROM TONIGHT INTO THURSDAY MORNING... .Freezing rain will develop overnight and persists into Thursday morning. it will end from south to north through the morning hours. Greatest ice accumulations are forecast along and north of Interstate 94 with icing amounts of a quarter to nearly half an inch possible in a few locations. Closer to Interstate 90, impacts vary more in space and time with ridge tops and bridges possibly seeing more impacts versus the valleys and ground. * WHAT...Significant icing expected. Total snow and sleet accumulations up to one inch and ice accumulations between two tenths and four tenths of an inch. * WHERE...Jackson County. * WHEN...From midnight tonight to 10 AM CDT Thursday. * IMPACTS...Power outages and tree damage are possible due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the Thursday morning commute.
INSTRUCTION: Travel is strongly discouraged. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. Prepare for possible power outages. Visit 511wi.gov for road conditions.
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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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