Weather Alert in California

Recent Locations: Wilmington, CA  

Winter Storm Warning issued March 13 at 2:13PM PDT until March 14 at 11:00PM PDT by NWS Sacramento CA

AREAS AFFECTED: West Slope Northern Sierra Nevada

DESCRIPTION: * WHAT...Periods of moderate to heavy snow expected through this evening with additional accumulations of 5 to 10 inches. The next system will bring heavy snow above 2000 feet on Friday. Total snow accumulations of 6 to 15 inches, with up to 2 feet over the peaks. Wind gusts as high as 65 mph. * WHERE...West Slope Northern Sierra Nevada. * WHEN...Until 11 PM PDT Friday. * IMPACTS...Travel could be very difficult to impossible at times. The hazardous conditions could impact the Thursday evening and Friday morning commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Heaviest snowfall expected Friday morning.

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

View All Alerts for California

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Want to Receive our Free Daily Forecast Emails in your inbox by 5 a.m.?
There are no ads! Learn More
We respect your privacy and will not share or sell your email with anyone.

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

North American Water Vapor Map

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