Weather Alert in Alaska
Winter Weather Advisory issued February 23 at 9:19PM AKST until February 25 at 3:00AM AKST by NWS Fairbanks AK
AREAS AFFECTED: Yukon Flats; Fortymile Country
DESCRIPTION: * WHAT...Snow. Additional snow accumulations between 2 and 4 inches. * WHERE...Fortymile Country and Yukon Flats. * WHEN...Until 3 AM AKST Wednesday. * IMPACTS...Travel could be difficult. * ADDITIONAL DETAILS...The heaviest snow is expected on the south side of the Yukon Flats and the north and west ends of the Fortymile Country with lighter accumulations elsewhere.
INSTRUCTION: Slow down and use caution while traveling. Visit 511.alaska.gov or call 5 1 1 for the latest road conditions.
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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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