Weather Alert in Illinois
Blizzard Warning issued March 16 at 2:51AM CDT until March 16 at 1:00PM CDT by NWS Lincoln IL
AREAS AFFECTED: Knox; Stark
DESCRIPTION: * WHAT...Blizzard conditions. Additional snow accumulations between 2 and 4 inches. Northwest winds gusting as high as 35 to 45 mph. * WHERE...Stark and Knox Counties. * WHEN...Until 1 PM CDT this afternoon. * IMPACTS...Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Plan on slippery road conditions. Widespread blowing and drifting snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning commute. Gusty winds could bring down tree branches.
INSTRUCTION: Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for Illinois can be obtained on the Internet at www.gettingaroundillinois.com Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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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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