Weather Alert in Alaska
Winter Weather Advisory issued February 24 at 5:31AM AKST until February 24 at 4:00PM AKST by NWS Anchorage AK
AREAS AFFECTED: Central Copper Valley; Tok Cutoff
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 2 and 6 inches from Glennallen to Gakona and 6 to 12 inches along the Tok Cutoff. * WHERE...Central Copper Valley and Tok Cutoff, including Glennallen, Gakona, Chistochina, and Slana. * WHEN...Until 4 PM AKST this afternoon. * IMPACTS...Travel could be very difficult. Visibility reduced to one half mile or less at times. * ADDITIONAL DETAILS...The area of highest accumulation is expected along the Tok Cutoff from around Chistochina to Slana. Much less snow is expected as you head south from Glennallen down to Chitina. Snow will gradually taper off during the day Tuesday. However, gusty northwest to northeast winds will develop and lead to reduced visibilities as the freshly fallen snow is lofted and blown around. The gusty winds and blowing snow will likely continue through Tuesday night and perhaps beyond.
INSTRUCTION: Slow down and use caution while traveling. For the latest road conditions call 5 1 1 or visit 511.alaska.gov.
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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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