Weather Alert in Pennsylvania
Winter Storm Watch issued February 4 at 12:32PM EST until February 7 at 7:00AM EST by NWS State College PA
AREAS AFFECTED: Cambria; Somerset
DESCRIPTION: ...HEAVY SNOW AND NEAR BLIZZARD CONDITIONS POSSIBLE FRIDAY INTO SATURDAY MORNING... .A strong Arctic front will deliver moderate to heavy snow, strong winds, and dangerously cold wind chills to the Laurel Highlands Friday into Saturday morning. * WHAT...Heavy snow possible. Total snow accumulations between 2 and 4 inches with locally higher amounts up to 6 inches possible on the summits and ridgetops. Winds could gust as high as 50 mph. * WHERE...Cambria and Somerset Counties. * WHEN...From Friday morning through Saturday morning. The heaviest snow is expected Friday afternoon through Friday night. * IMPACTS...Near-blizzard conditions with very low visibility are possible and may make travel treacherous and potentially life-threatening. Blowing and drifting snow is possible Friday night through Saturday. * ADDITIONAL DETAILS...Wind chills will fall below zero Friday night with values as low as 20 to 30 below zero through Saturday morning. Frostbite and hypothermia can occur in these conditions in less than 30 minutes.
INSTRUCTION: Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Make sure your car is winterized and in good working order.
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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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