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: Southern Centre
DESCRIPTION: * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 25 below expected. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Southern Centre County. * WHEN...For the Extreme Cold Warning, from 1 AM Saturday to 10 AM EST Sunday. For the Wind Advisory, from midnight tonight to 10 PM EST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.
INSTRUCTION: Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. 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 Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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