Weather Alert in Washington
Winter Storm Warning issued March 12 at 1:37AM PDT until March 14 at 5:00AM PDT by NWS Spokane WA
AREAS AFFECTED: Western Chelan County
DESCRIPTION: * WHAT...For the Blizzard Warning, blizzard conditions expected. Additional snow accumulations 2 to 4 inches. Wind gusts will peak around 50 mph Thursday morning. For the Winter Storm Warning starting Thursday morning, heavy snow expected. Additional snow accumulations between 1 and 3 feet Thursday morning through Friday night. * WHERE...Holden Village and Stevens Pass. * WHEN...For the Blizzard Warning, until 5 AM PDT early this morning. For the Winter Storm Warning, from 5 AM early this morning to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult. Visibilities may drop below 1/4 mile due to falling and blowing snow during the blizzard warning. Strong winds could cause tree damage Thursday morning. * ADDITIONAL DETAILS...Colder air will arrive early Thursday morning with temperatures dropping back into the 20s. Through Friday night, periods of snow expected at Stehekin. Snow will change to rain each afternoon. Total accumulations around 5 to 8 inches at Stehekin.
INSTRUCTION: If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. For the latest travel information in Washington, go to https://wsdot.wa.gov/travel If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest travel information in Washington, go to https://wsdot.wa.gov/travel
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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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