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; Los Angeles County San Gabriel Valley
2. 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
3. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; San Gorgonio Pass Near Banning; Orange County Coastal; Orange County Inland
4. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; San Gorgonio Pass Near Banning; Orange County Coastal; Orange County Inland
5. Coastal Flood Advisory for: Los Angeles County Beaches
6. Coastal Flood Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
7. Coastal Flood Advisory for: Ventura County Beaches
8. Coastal Flood Warning 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
9. Flood Watch for: Coastal Del Norte; Del Norte Interior; Northern Humboldt Coast; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior
10. Flood Watch for: Mariposa Madera Foothills; Mariposa-Madera Lower Sierra; Fresno-Tulare Foothills; Fresno-Tulare Lower Sierra; South End Sierra Foothills; South End of the Lower Sierra; Yosemite Valley; San Joaquin River Canyon; Kern River Valley; Piute Walker Basin
11. Flood Watch for: Mendocino Coast; Northwestern Mendocino Interior
12. High Surf Advisory for: Catalina and Santa Barbara Islands; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Malibu Coast
13. High Surf Advisory for: Los Angeles County Beaches
14. High Surf Advisory for: San Diego County Coastal Areas; Orange County Coastal
15. High Surf Warning for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast
16. High Surf Warning 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
17. High Surf Warning for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
18. High Surf Warning for: Ventura County Beaches
19. High Wind Warning for: Central Siskiyou County
20. High Wind Warning for: Mojave Desert Slopes
21. Wind Advisory for: Coastal Del Norte; Del Norte Interior; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior
22. Wind Advisory for: Indian Wells Valley; Mojave Desert
23. Wind Advisory for: Modoc County; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
24. Wind Advisory for: Owens Valley; Death Valley National Park; Esmeralda and Central Nye County; Western Clark and Southern Nye County
25. Wind Advisory for: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
26. Wind Advisory for: Western Mojave Desert; Morongo Basin
27. Winter Storm Warning for: Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP
28. Winter Storm Watch for: Western Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County; South Central Oregon Cascades; Siskiyou Mountains and Southern Oregon Cascades
29. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
30. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
31. Winter Weather Advisory for: Mono
32. Winter Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
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National Weather Forecast--Current
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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 is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
