Weather Alert in Alaska
High Wind Watch issued February 18 at 10:57AM AKST until February 20 at 6:00AM AKST by NWS Anchorage AK
AREAS AFFECTED: Kodiak Island Northeast
DESCRIPTION: * WHAT...Northwest winds 30 to 50 mph with gusts up to 75 mph possible. Wind chill readings dropping as low as zero to 5 degrees above zero late Thursday night. * WHERE...Northeast end of Kodiak Island. * WHEN...From Thursday evening through late Thursday night. * IMPACTS...High winds could move loose debris, damage property, and cause power outages. Travel could be difficult. * ADDITIONAL DETAILS...Northwesterly winds will strengthen through the day Thursday, then peak Thursday night through early Friday morning.
INSTRUCTION: A high wind watch means there is potential for a hazardous high wind event. Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds.
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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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