Weather Alert in Alaska
Flood Advisory issued September 2 at 9:23PM AKDT until September 3 at 12:00PM AKDT by NWS Fairbanks AK
AREAS AFFECTED: Upper Kobuk Valleys
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Kobuk River at Kobuk. * WHEN...Until noon AKDT Wednesday. * IMPACTS...Minor flooding in low-lying and poorly drained areas. The old road is flooded and water levels are near the new road. * ADDITIONAL DETAILS... - As of Saturday morning, the public has reported minor flooding in Kobuk. Another wave of rain is expected with up to half an inch forecast through Wednesday. This may impede the recession of elevated water levels. - http://www.weather.gov/aprfc
INSTRUCTION: Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.
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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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