Weather Alerts for California
1. High Surf Advisory for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast
2. High Surf Advisory for: San Diego County Coastal Areas
3. High Surf Advisory for: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
4. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Ventura County Beaches
5. High Wind Warning for: Central Siskiyou County
6. High Wind Warning for: Coastal Del Norte
7. High Wind Warning for: Modoc County; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
8. Wind Advisory for: Del Norte Interior; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior
9. Wind Advisory for: Interstate 5 Corridor
10. Wind Advisory for: Northern Humboldt Coast
11. Wind Advisory for: Santa Barbara County Interior Mountains
12. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range
13. Wind Advisory for: Southern Ventura County Mountains; Northern Ventura County Mountains
14. Wind Advisory for: Surprise Valley California; Greater Reno-Carson City-Minden Area; Northern Washoe County
15. Wind Advisory for: Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
16. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
17. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
18. Winter Weather Advisory for: Mono
19. Winter Weather Advisory for: Northern Trinity
20. Winter Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
21. Winter Weather Advisory for: Western Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County; South Central Oregon Cascades; Siskiyou Mountains and Southern Oregon Cascades
22. Winter Weather Advisory for: Yosemite NP outside of the valley; Upper San Joaquin River
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Current U.S. National Radar--Current
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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 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
Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - 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
