Weather Alert in Alaska
Flood Advisory issued August 28 at 10:07PM AKDT until August 29 at 4:00AM AKDT by NWS Anchorage AK
AREAS AFFECTED: Anchorage
DESCRIPTION: * WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Anchorage bowl. * WHEN...Until 400 AM AKDT. * IMPACTS...Ponding of water over roadways is leading to minor flooding in low-lying and poor drainage areas. Chester Creek is approaching bankfull and water levels along other small streams in the area are also rising. * ADDITIONAL DETAILS... - At 1002 PM AKDT, reports of heavy rain is occurring the advisory area. This is causing urban and small stream flooding in addition to overflowing of poor drainage areas. - http://www.weather.gov/safety/flood
INSTRUCTION: Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.
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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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