Weather Alert in Minnesota
Winter Weather Advisory issued April 1 at 2:20PM CDT until April 2 at 12:00PM CDT by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Sherburne; Isanti; Chisago; Wright; Anoka; Watonwan; Blue Earth; Waseca; Steele
DESCRIPTION: ...MESSY SPRING SYSTEM BRINGS FREEZING RAIN, SLEET, AND SNOWTO PORTIONS OF MINNESOTA AND WISCONSIN TONIGHT THROUGH THURSDAY... .A powerful spring weather system will bring widespread precipitation to the region beginning tonight and lingering through Thursday, with areas of wet snow, freezing rain, sleet, and rain all expected depending on timing and location. Western and central Minnesota will experience mainly slushy wet snow with accumulations of 2 to 4 inches, meanwhile rain is favored in southern and southeastern Minnesota. In between the snow and rain, a messy wintry mix of sleet and freezing rain will result in ice accumulations and slippery travel. There is still a moderate degree of uncertainty regarding ice accumulation amounts, due to temperatures being very close to freezing and a fluctuation of only a degree or two likely having a large impact on final amounts. The greatest impacts from icing and freezing rain will occur over western Wisconsin and portions of east-central to southwestern Minnesota, with accumulations up to a quarter inch in Minnesota and a few tenths of an inch in Wisconsin. Power outages are possible due to icing of power lines in addition to gusty winds, and slippery to impossible travel will occur where ice accumulates. Slow travel from wet slushy snow is expected in western and central Minnesota. * WHAT...Mixed precipitation expected. Total snow accumulations up to two inches, sleet accumulations around one third of an inch, and ice accumulations up to one tenth of an inch. * WHERE...Sherburne, Wright, Anoka, Chisago, Isanti, Blue Earth, Steele, Waseca, and Watonwan Counties. * WHEN...From midnight tonight to noon CDT Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Thursday morning commute.
INSTRUCTION: Slow down and use caution while traveling. Call 5 1 1 or visit 511mn.org for road conditions. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.
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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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