Weather Alert in California

Winter Weather Advisory issued April 25 at 2:39AM PDT until April 27 at 11:00AM PDT by NWS Sacramento CA

AREAS AFFECTED: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada

DESCRIPTION: * WHAT...Moderate snow expected above 6000 feet. Total snow accumulations of 3 to 8 inches, with up to 12 inches over highest peaks. Winds gusting up to 35 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park. * WHEN...From 5 PM this afternoon to 11 AM PDT Sunday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute and weekend travel. * ADDITIONAL DETAILS...Snow levels around 6000 feet today, falling to 5000-5500 feet Saturday. Light snowfall accumulations possible down to around 5500 feet.

INSTRUCTION: Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.

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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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