Weather Alert in California

Recent Locations: Vallejo, CA  

Winter Storm Warning issued March 13 at 12:08PM PDT until March 14 at 5:00PM PDT by NWS Medford OR

AREAS AFFECTED: Western Siskiyou County

DESCRIPTION: * WHAT...Heavy snow of 5 to 10 inches possible above 2000 feet, except up to 20 inches above 4500 feet. Winds could gust as high as 50 mph over higher, exposed mountain locations. 1 to 4 inches of snow is possible down to valley floors below 2000 feet. * WHERE...Areas above 2000 feet elevation in western Siskiyou County, mainly west and south of the Scott Valley. * WHEN...From 2 AM to 5 PM PDT Friday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels could be near valley floors Friday morning, then rise above 3000 feet Friday afternoon.

INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit quickmap.dot.ca.gov for road information.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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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