Weather Alert in Minnesota
Winter Storm Warning issued April 3 at 2:23AM CDT until April 4 at 10:00PM CDT by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Todd; Morrison
DESCRIPTION: ...MIXED WINTER EVENT WITH SNOW, SLEET, AND ICE ACCUMULATION FRIDAY INTO SATURDAY... .A mixed precipitation event will unfold across Minnesota into Wisconsin today into tomorrow. Across parts of central Minnesota this will mainly fall as snow with up to 7 inches possible. Farther south a band of freezing rain and sleet from southwest Minnesota to northwest Wisconsin will see ice accumulations up to two tenths of an inch. There will be a sharp cutoff in these ice accumulations, as this will be very sensitive to where the freezing line sets up. So additional shifts in the southward extent maybe needed later in the day. * WHAT...Heavy mixed precipitation expected. Total snow accumulations between 4 and 7 inches, sleet accumulations up to one tenth of an inch, and ice accumulations up to one tenth of an inch. * WHERE...Morrison and Todd Counties. * WHEN...From 4 PM this afternoon to 10 PM CDT Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Friday evening commute.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 5 1 1 or visit 511mn.org 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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