Weather Alert in Alaska
Wind Advisory issued March 14 at 2:03PM AKDT until March 16 at 1:00AM AKDT by NWS Juneau AK
AREAS AFFECTED: Western Kupreanof and Kuiu Island; Ketchikan Gateway Borough
DESCRIPTION: ...STRONG LOW PRESSURE SYSTEM QUICKLY INCREASES WINDS SUNDAY... A storm force low pressure system pushes north into the gulf Sunday bringing strong winds toward the gulf coast and southern panhandle. There is high confidence that this low will slightly intensify as it moves just west of Baranof Island. The low pressure system will then move northwest settling in the northern gulf by Monday. * WHAT...East winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Western Kupreanof Island and Kuiu Island and Ketchikan Gateway Borough. * WHEN...From 1 PM Sunday to 1 AM AKDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Use extra caution if traveling by land, sea, or air.
INSTRUCTION: Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects.
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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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