Weather Alert in Alaska
Cold Weather Advisory issued February 12 at 1:38PM AKST until February 14 at 6:00AM AKST by NWS Fairbanks AK
AREAS AFFECTED: Western Arctic Coast; Northwest Arctic Coast; Northern Arctic Coast; Central Beaufort Sea Coast; Eastern Beaufort Sea Coast; Western Arctic Plains; Howard Pass and the Delong Mountains; Central Arctic Plains; Central Brooks Range; Romanzof Mountains
DESCRIPTION: * WHAT...Very cold wind chills as low as 65 below. * WHERE...Arctic Coast, Arctic Plains, and Brooks Range Passes. * WHEN...Until 6 AM AKST Saturday. * IMPACTS...The dangerously cold wind chills as low as 65 below zero could cause frostbite on exposed skin in as little as 5 minutes. * ADDITIONAL DETAILS...Gusty winds Wednesday afternoon slowly weaken. Temperatures have risen slightly allowing conditions to improve slightly. Breezy easterly winds continue through Friday allowing dangerously cold wind chills to continue.
INSTRUCTION: Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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
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