Weather Alert in Minnesota
Winter Storm Warning issued February 16 at 1:23PM CST until February 19 at 12:00PM CST by NWS Duluth MN
AREAS AFFECTED: Central St. Louis; Carlton/South St. Louis
DESCRIPTION: * WHAT...Heavy snow with light ice accumulations expected. Total snow accumulations between 5 and 8 inches except between 8 and 11 inches for the higher terrain northeast of Duluth. Ice accumulations around one tenth of an inch. East winds gusting as high as 55 mph. * WHERE...Carlton and South and Central St. Louis Counties. This includes the Tribal Lands of the Fond du Lac Band and the Bois Forte Band, Lake Vermilion area. * WHEN...From 6 PM Tuesday to noon CST Thursday. * IMPACTS...The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. The hazardous conditions could impact the Wednesday morning and evening commutes. * ADDITIONAL DETAILS...The strongest winds are expected Tuesday evening through Wednesday morning from the east off Lake Superior. Near whiteout conditions are possible for a few hour period late Tuesday night as high snowfall rates could combine with those peak winds gusting to 55 mph.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit www.511mn.org for Minnesota road information. Do not touch downed lines and report any power outages to your electric company. Slick roadways and the possibility of downed trees and power lines may create hazardous travel conditions.
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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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