Weather Alert in California

Recent Locations: Castaic, CA   Mojave, CA   Newhall, CA  
Current Alerts for Castaic, CA: High Surf Advisory Wind Advisory

Winter Storm Warning issued February 17 at 11:57AM PST until February 20 at 7:00AM PST by NWS Los Angeles/Oxnard CA

AREAS AFFECTED: Northern Ventura County Mountains; Eastern San Gabriel Mountains

DESCRIPTION: * WHAT...Heavy snow possible. Total snow accumulations of up to 4 inches between 3500 and 4500 feet, 6 to 12 inches for 4500 to 6000 feet, and 1 to 2 feet above 6000 feet. Wind gusts of up to 60 to 70 mph possible this afternoon through late tonight, and again late Wednesday night into Thursday morning. * WHERE...Eastern San Gabriel Mountains and Northern Ventura County Mountains. * WHEN...Until 7 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could become treacherous. Visibilities may drop below one-quarter mile due to falling and blowing snow. Damaging winds could blow down trees and power lines. * ADDITIONAL DETAILS...There will be a break in the snowfall for Tuesday into Tuesday night, before heavy snow returns by Wednesday. However, blowing and drifting snow producing significant visibility restrictions will continue above 6000 feet elevation, even during the break in snowfall.

INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

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Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Altocumulus Clouds Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds

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

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