Weather Alert in Pennsylvania
Wind Advisory issued February 6 at 2:17PM EST until February 8 at 12:00AM EST by NWS Mount Holly NJ
AREAS AFFECTED: Carbon; Monroe
DESCRIPTION: * WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with gusts up to 50 mph expected. For the Extreme Cold Warning, dangerously cold wind chills as low as 30 degrees below zero expected. * WHERE...Carbon and Monroe Counties. * WHEN...For the Wind Advisory, from 4 AM Saturday to midnight EST Saturday Night. For the Extreme Cold Warning, from 4 AM Saturday to noon EST Sunday. * 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 30 degrees below zero could cause frostbite on exposed skin in as little as 30 minutes. * ADDITIONAL DETAILS...High winds potentially leading to power outages combined with extremely cold conditions could be very dangerous!
INSTRUCTION: Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Dress in layers including a hat, face mask, and gloves if you must go outside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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