Weather Alert in California

Winter Storm Warning issued April 1 at 12:03PM PDT until April 1 at 5:00PM PDT by NWS Sacramento CA

AREAS AFFECTED: Shasta Lake Area / Northern Shasta County; Mountains Southwestern Shasta County to Western Colusa County

DESCRIPTION: * WHAT...Moderate snow. Additional snow accumulations of 2 to 6 inches above 3000 feet with up to 8 inches at the highest peaks. Winds gusting as high as 40 mph. * WHERE...Mountains Southwestern Shasta County to Western Colusa County and Shasta Lake Area / Northern Shasta County above 3000 feet. * WHEN...Until 5 PM PDT this afternoon. * IMPACTS...The hazardous conditions could impact the Tuesday evening commute. * ADDITIONAL DETAILS...Snow levels around 3500-4500 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 is Hail?

Home - Education - Precipitation - Hail

Hail Next Topic: Hole Punch Clouds

Hail is a form of precipitation which is recognized by large solid balls or clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind. As the hailstones remain in the updraft, ice is deposited onto them until their weight becomes heavy enough for them to fall to the earth's surface.

Hail storms can cause significant damage to crops, aircrafts, and man-made structures, despite the fact that the duration is usually less than ten minutes.

Next Topic: Hole Punch Clouds

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

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