Weather Alert in Utah
Avalanche Advisory issued February 23 at 5:54AM MST by NWS Salt Lake City UT
AREAS AFFECTED: Western Uinta Mountains
DESCRIPTION: SABSLC * WHAT...The Utah Avalanche Center is warning of continued dangerous avalanche conditions in the Western Uinta Mountains. This week's heavy snowfall and strong winds overloaded preexisting weak layers, creating a HIGH avalanche danger. There have already been two tragic avalanche fatalities this week in northern Utah, as well as several close calls and numerous backcountry avalanches reported. * WHERE...Western Uinta Mountains. * WHEN...In effect from 6am MST this morning to 6am MST Tuesday. * IMPACTS...Dangerous avalanche conditions exist in the backcountry and will persist through at least Monday. Natural avalanches are possible, and people are likely to trigger avalanches on slopes steeper than 30 degrees. Dangerous and deadly avalanches can be triggered remotely (from a distance or from below).
INSTRUCTION: Backcountry travelers should consult www.utahavalanchecenter.org or call 1-888-999-4019 for more detailed information. This Bulletin does not apply to ski areas or highways where avalanche hazard reduction measures are performed.
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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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