Weather Alert in Michigan
Winter Storm Warning issued April 3 at 2:50AM EDT until April 3 at 8:00AM EDT by NWS Marquette MI
AREAS AFFECTED: Keweenaw; Houghton
DESCRIPTION: * WHAT...For the first Winter Storm Warning, heavy mixed precipitation. Additional snow accumulations up to one inch and ice accumulations around a light glaze. For the second Winter Storm Warning, heavy mixed precipitation expected. Total sleet accumulations of one to two inches and ice accumulations around two tenths of an inch. Winds gusting as high as 40 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...For the first Winter Storm Warning, until 8 AM EDT this morning. For the second Winter Storm Warning, from 2 AM to 2 PM EDT Saturday. * IMPACTS...Travel will be difficult. The hazardous conditions will impact the Friday morning and evening commutes.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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