Weather Alerts for California
1. Air Quality Alert for: Imperial Valley
2. Beach Hazards Statement for: Malibu Coast; Los Angeles County Beaches
3. Beach Hazards Statement for: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
4. High Surf Advisory for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast
5. High Surf Advisory for: San Diego County Coastal Areas
6. 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
7. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
8. High Surf Advisory for: Ventura County Beaches
9. Wind Advisory for: Coastal Del Norte; Del Norte Interior; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior
10. Wind Advisory for: Interstate 5 Corridor
11. Wind Advisory for: Northern Humboldt Coast
12. Wind Advisory for: Santa Barbara County Interior Mountains
13. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range
14. Wind Advisory for: Southern Ventura County Mountains; Northern Ventura County Mountains
15. Wind Advisory for: Surprise Valley California; Greater Reno-Carson City-Minden Area; Northern Washoe County
16. Wind Advisory for: Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
17. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
18. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
19. Winter Weather Advisory for: Mono
20. Winter Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
21. Winter Weather Advisory for: Yosemite NP outside of the valley; Upper San Joaquin River
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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