Weather Alert in Minnesota
Winter Weather Advisory issued February 18 at 12:19PM CST until February 18 at 9:00PM CST by NWS Twin Cities/Chanhassen MN
AREAS AFFECTED: Wright; Hennepin; Ramsey; Washington; McLeod; Sibley; Carver; Scott; Dakota; Le Sueur; Rice; Goodhue; Watonwan; Waseca; Steele
DESCRIPTION: ...BLIZZARD CONDITIONS OCCURRING ALONG THE MINNESOTA RIVER IN SOUTHWEST MINNESOTA... .Snow continues across southern and western Minnesota. Visibilities remain less than 1/4 mile in areas along the Minnesota River where gusts of 45 to 55 mph are occurring. This is leading to blizzard conditions from Granite Falls and Olivia to Redwood Falls, New Ulm, and Mankato. A Blizzard Warning is in effect for these areas. Farther north, light to moderate snow continues which will result in travel impacts into this evening. A Winter Weather Advisory remains in effect south of I-94 in Minnesota, except along I-90 where much drier air should prevent much snow from reaching the ground. * WHAT...Snow. Additional snow accumulations up to 3 inches. Winds gusting as high as 45 mph. * WHERE...McLeod, Sibley, Wright, Carver, Dakota, Hennepin, Ramsey, Scott, Washington, Le Sueur, Rice, Steele, Waseca, Watonwan, and Goodhue Counties. * WHEN...Until 9 PM CST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Wednesday evening commute. Gusty winds could bring down tree branches.
INSTRUCTION: Slow down and use caution while traveling. 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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