Weather Alert in Alaska
Winter Weather Advisory issued February 22 at 9:59AM AKST until February 25 at 3:00AM AKST by NWS Fairbanks AK
AREAS AFFECTED: Yukon Flats; Fortymile Country
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 4 and 9 inches. * WHERE...Fortymile Country and Yukon Flats. * WHEN...Until 3 AM AKST Wednesday. * IMPACTS...Travel could be difficult. * ADDITIONAL DETAILS...Multiple days of light snow expected. 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 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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