Weather Alert in Alaska
Flood Watch issued August 27 at 2:07PM AKDT until August 29 at 10:00AM AKDT by NWS Anchorage AK
AREAS AFFECTED: Southern Kenai Mtns
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is possible. 3 to 5 inches of rainfall. * WHERE...The following area, Southern Kenai Mtns. This includes the city of Seward. * WHEN...From 10 PM AKDT this evening through Friday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Landslides may possible in areas of steep terrain. Ponding on roadways may result in hydroplaning. * ADDITIONAL DETAILS... - A multi-day rainfall event is underway across Southcentral Alaska. Rainfall totals are generally expected to range between 3 and 5 inches for Seward, Bear Creek, and nearby areas. Locally higher amounts possible in higher terrain. Rain is expected to taper off during the day on Friday, though high water is likely to persist into the weekend. - Http://www.weather.gov/safety/flood
INSTRUCTION: Persons living along streams should stay alert and be prepared to take action if a warning or advisory is issued, or flooding is observed. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. 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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