Weather Alerts for California
1. Air Quality Alert for: Catalina and Santa Barbara Islands; Santa Clarita Valley; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Los Angeles County San Gabriel Valley
2. Air Quality Alert for: Imperial Valley
3. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; Santa Ana Mountains and Foothills; San Gorgonio Pass Near Banning; Orange County Coastal; Orange County Inland
4. Beach Hazards Statement for: San Diego County Coastal Areas
5. Beach Hazards Statement for: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
6. Flood Warning for: Mendocino, CA
7. High Surf Advisory for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast
8. High Surf Advisory for: Malibu Coast; Los Angeles County Beaches
9. High Surf Advisory for: San Diego County Coastal Areas
10. 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
11. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
12. High Surf Advisory for: Ventura County Beaches
13. High Wind Warning for: Mono; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area
14. Wind Advisory for: Apple and Lucerne Valleys
15. Wind Advisory for: Central Siskiyou County; Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Curry County Coast; Central Douglas County; Eastern Curry County and Josephine County; Jackson County; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
16. Wind Advisory for: Coastal Del Norte; Del Norte Interior; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior
17. Wind Advisory for: Interstate 5 Corridor
18. Wind Advisory for: Northern Humboldt Coast
19. Wind Advisory for: Northern Sacramento Valley; Central Sacramento Valley
20. Wind Advisory for: Santa Barbara County Interior Mountains
21. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range
22. Wind Advisory for: Southern Ventura County Mountains; Northern Ventura County Mountains
23. Wind Advisory for: Surprise Valley California; Northern Washoe County
24. Wind Advisory for: Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
25. Wind Advisory for: Western Mojave Desert
26. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
27. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
28. Winter Weather Advisory for: Mono
29. Winter Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
30. 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
31. 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
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National Weather Forecast for Tomorrow
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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 Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
