Weather Alert in Washington

Recent Locations: Robesonia, PA   Saint Paul, OR   McCleary, WA  

Cold Weather Advisory issued February 17 at 9:28PM PST until February 18 at 10:00AM PST by NWS Seattle WA

AREAS AFFECTED: Lowlands of Western Whatcom County

DESCRIPTION: * WHAT...Very cold wind chills as low as 17 to 20 degrees expected. * WHERE...Lowlands of Western Whatcom County. * WHEN...From 1 AM to 10 AM PST Wednesday. * IMPACTS...Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...While temperatures will warm during the day Wednesday, additional cold temperatures are expected Wednesday night into Thursday.

INSTRUCTION: Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. For sheltering information and other human services in your area, dial 2 1 1 during business hours or visit wa211.org anytime.

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Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Cirrocumulus Clouds Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

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

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