Weather Alert in Alaska

Recent Locations: King Salmon, AK  

Flood Advisory issued June 19 at 10:42AM AKDT until June 19 at 10:00PM AKDT by NWS Fairbanks AK

AREAS AFFECTED: Central Beaufort Sea Coast

DESCRIPTION: * WHAT...Flooding caused by snowmelt is occurring. * WHERE...Kuparuk River, Spine Road, Kuparuk River Bridge And All Other Roads Near The River. * WHEN...Until 1000 PM AKDT Thursday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1035 AM AKDT Thursday, high water from rapid snowmelt has crested and a gradual decline is expected through the end of the week. -Continued impacts to infrastructure near the river's mouth are possible as elevated water levels persist. -Personnel in the area are urged to use caution and avoid flooded roadways. - For Kuparuk River nr Deadhorse: At 9:45am the stage was 34.9 feet. Flood Stage is 35.5 feet. Forecast: A crest around 34.1 feet is expected around 4:00pm Thursday. - http://www.weather.gov/aprfc

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

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

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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