Weather Alerts for California
1. Air Quality Alert for: Coachella Valley
2. Wind Advisory for: Apple and Lucerne Valleys; San Diego County Deserts; San Gorgonio Pass Near Banning
3. Wind Advisory for: Death Valley National Park; Western Mojave Desert
4. Wind Advisory for: Imperial County Southwest
5. Wind Advisory for: Imperial County West
6. Wind Advisory for: Indian Wells Valley; Mojave Desert Slopes; Mojave Desert
7. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
8. Winter Weather Advisory for: Mono
9. Winter Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
10. Winter Weather Advisory for: Yosemite NP outside of the valley; San Joaquin River Canyon; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP
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Current U.S. National Radar--Current
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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
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