Weather Alert in Minnesota
Winter Storm Watch issued March 31 at 2:24PM CDT until April 3 at 1:00AM CDT by NWS Duluth MN
AREAS AFFECTED: Northern Cook/Northern Lake; Central St. Louis; Southern Lake/North Shore; Southern Cook/North Shore; Carlton/South St. Louis; Pine; Douglas; Bayfield; Ashland; Iron
DESCRIPTION: * WHAT...Heavy mixed precipitation possible. Total snow and sleet accumulations between 4 and 9 inches except between 7 and 10 inches for the higher terrain of the North Shore and ice accumulations around one tenth of an inch possible. Winds could gust as high as 35 mph. * WHERE...In Minnesota, Pine, Carlton, South and Central St. Louis, Cook and Lake Counties. In Wisconsin, Ashland, Bayfield, Douglas, and Iron Counties. This includes the Tribal Lands of the Red Cliff Band, the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band, the Grand Portage Reservation, the Bad River Reservation, the northwestern area of the Lac du Flambeau Band and the Mille Lacs Band, Hinckley and, Lena Lake areas. Other locations including the Apostle Islands National Lakeshore and Madeline Island. This also includes the Boundary Waters eastern and central area. * WHEN...From Wednesday evening through late Thursday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes.
INSTRUCTION: Monitor the latest forecasts for updates on this situation.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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
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