Weather Alert in Pennsylvania
Extreme Cold Warning issued February 6 at 2:03AM EST until February 8 at 10:00AM EST by NWS State College PA
AREAS AFFECTED: Warren; McKean; Potter; Elk; Cameron; Tioga
DESCRIPTION: * WHAT...Dangerously cold wind chills as low as 30 below expected. * WHERE...Cameron, Elk, McKean, Potter, Tioga, and Warren Counties. * WHEN...From 1 AM Saturday to 10 AM EST Sunday. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes.
INSTRUCTION: Persons are urged to stay indoors until conditions improve. If you must go outside, dress in layers. Cover exposed skin to reduce your risk of frostbite or hypothermia. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly.
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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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