Weather Alert in California

Recent Locations: Vallejo, CA  

Winter Storm Watch issued March 13 at 1:39AM PDT until March 14 at 11:00PM PDT by NWS Sacramento CA

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

DESCRIPTION: * WHAT...For the Winter Storm Warning Above 3000 feet, additional snow accumulations up to 8 inches. For the Winter Storm Watch Above 2000 feet, heavy snow possible. Total snow accumulations of 1 to 2 feet possible. Winds could gust as high as 50 mph. * WHERE...Burney Basin / Eastern Shasta County, Mountains Southwestern Shasta County to Western Colusa County, and Shasta Lake Area / Northern Shasta County. * WHEN...For the Winter Storm Warning, until 11 PM PDT this evening. For the Winter Storm Watch, from 11 PM PDT tonight through Friday evening. * IMPACTS...Difficult travel conditions from chain controls, road closures, and low visibility due to the combination of wind and heavy snow expected. Hazardous conditions will impact the morning and afternoon commutes today and Friday. * ADDITIONAL DETAILS...For the Warning, heaviest snowfall expected through this morning. For the Watch, heaviest snowfall expected late tonight through midday Friday.

INSTRUCTION: Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1. Persons should delay travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Consider taking a winter storm kit along with you and anything else that would help you survive in case you become stranded.

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Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation