Weather Alerts for California
1. Winter Weather Advisory for: West Slope Northern Sierra Nevada; Western Plumas County, Lassen Park
2. Wind Advisory for: Imperial County Southwest
3. High Wind Warning for: Imperial County Southwest
4. Wind Advisory for: Chuckwalla Mountains; Imperial County Southeast; Imperial County West; Imperial Valley; Joshua Tree NP West
5. Wind Advisory for: Chiriaco Summit; Palo Verde Valley; Salton Sea
6. Wind Advisory for: Chuckwalla Valley; Joshua Tree NP East
7. Wind Advisory for: Imperial County Southwest
8. Wind Advisory for: San Luis Obispo County Central Coast; Santa Barbara County Central Coast
9. Wind Advisory for: Los Angeles County Coast including Downtown Los Angeles; Ventura County Coast
10. Wind Advisory for: Antelope Valley
11. Wind Advisory for: Santa Barbara County South Coast
12. Wind Advisory for: Los Angeles County Mountains excluding the Santa Monica Range; Santa Barbara County Mountains; Ventura County Mountains
13. Wind Advisory for: Western Mojave Desert
14. High Wind Warning for: Eastern Sierra Slopes of Inyo County; Owens Valley
15. High Wind Warning for: Western Mojave Desert
16. High Wind Warning for: Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin
17. Wind Advisory for: Apple and Lucerne Valleys; Coachella Valley; Riverside County Mountains; San Bernardino County Mountains; San Diego County Deserts; San Diego County Mountains; San Gorgonio Pass Near Banning
18. Winter Weather Advisory for: Greater Lake Tahoe Area
19. Beach Hazards Statement for: Los Angeles County Coast including Downtown Los Angeles
20. High Surf Advisory for: Ventura County Coast
21. Beach Hazards Statement for: Orange County Coastal; San Diego County Coastal Areas
22. Wind Advisory for: Fort Tejon; Indian Wells Valley; Kern County Desert; Lake Isabella; Tehachapi Area
23. Winter Weather Advisory for: Central Sierra
24. Winter Weather Advisory for: Modoc County; North Central and Southeast Siskiyou County; South Central Siskiyou County; Western Siskiyou County
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Hole Punch Clouds
A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud.
They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated
from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud,
or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Shelf Clouds
A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus,
and cirrus clouds. Mammatus clouds warn that severe weather is close.
Next Topic: Shelf Clouds
