Weather Alerts for California

Recent Locations: Glendale, AZ San Antonio, TX San Diego, CA

1. Frost Advisory for: Santa Ynez Valley; Ojai Valley; Calabasas and Agoura Hills

2. High Wind Warning for: Coastal Del Norte

3. High Wind Warning for: Del Norte Interior; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior

4. Hydrologic Outlook for: Siskiyou, CA; Coos, OR; Curry, OR; Josephine, OR

5. Wind Advisory for: Central Siskiyou County

6. Wind Advisory for: Mendocino Coast; Northwestern Mendocino Interior; Southwestern Mendocino Interior

7. Wind Advisory for: Northern Humboldt Coast

8. Winter Storm Warning for: Northern Trinity

9. Winter Weather Advisory for: Western Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County

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

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).

National Weather Forecast--Current

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

National Weather Forecast for Tomorrow

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

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.

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - 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

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