Weather Alert in Pennsylvania
Wind Advisory issued February 6 at 2:03AM EST until February 7 at 10:00PM EST by NWS State College PA
AREAS AFFECTED: Huntingdon; Fulton
DESCRIPTION: * WHAT...For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 55 mph expected. For the Cold Weather Advisory, very cold wind chills as low as 25 below expected. * WHERE...Fulton and Huntingdon Counties. * WHEN...For the Wind Advisory, from midnight tonight to 10 PM EST Saturday. For the Cold Weather Advisory, from 4 AM Saturday to 10 AM 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 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. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
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Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
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