Weather Alert in California

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

Winter Storm Warning issued February 17 at 12:03PM PST until February 19 at 10:00AM PST by NWS Medford OR

AREAS AFFECTED: South Central Siskiyou County; North Central and Southeast Siskiyou County

DESCRIPTION: * WHAT...Heavy snow expected. Additional snow accumulations 4 to 14 inches, but up to 20 inches above 5000 feet. * WHERE...Southern and eastern Siskiyou County. This includes Highways 97 and 89, Interstate 5 south of Weed, Black Butte Summit, Snowman Summit, Dead Horse Summit, Grass Lake Summit and Mt Shasta Ski Park Road. This also includes the communities of Mt Shasta City, Dunsmuir, McCloud and Tennant. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the evening and morning commutes. * ADDITIONAL DETAILS...Lighter snow is expected tonight into Wednesday with mostly light accumulations. Cold conditions will cause wet, slushy roads to ice up. Another period of heavier snow is expected Wednesday night into Thursday. Visit weather.gov/mfr/winter for additional snow probabilities.

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.

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 Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Altostratus Clouds Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Cirrostratus Clouds Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

Current conditions powered by WeatherAPI.com