Weather Alerts for California
1. Flood Watch for: Cuyama Valley; Santa Clarita Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; 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; Southeastern Ventura County Valleys; Santa Susana Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley; Los Angeles County San Gabriel Valley
2. Flood Watch for: Northern Ventura County Mountains
3. Flood Watch for: San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; San Bernardino County Mountains; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Coastal; Orange County Inland
4. Flood Watch for: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Southern Salinas Valley; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Southern Ventura County Mountains
5. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
6. High Wind Warning for: Santa Lucia Mountains and Los Padres National Forest
7. High Wind Warning for: Santa Lucia Mountains; San Luis Obispo County Mountains
8. Wind Advisory for: Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
9. Wind Advisory for: Cuyama Valley
10. Wind Advisory for: Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Western Clark and Southern Nye County; Spring Mountains-Red Rock Canyon; Las Vegas Valley; Southern Clark County
11. Wind Advisory for: Imperial County Southwest
12. Wind Advisory for: Indian Wells Valley; Mojave Desert Slopes; Mojave Desert
13. Wind Advisory for: Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; Mariposa Madera Foothills
14. Wind Advisory for: Marin Coastal Range; Sonoma Coastal Range; Coastal North Bay Including Point Reyes National Seashore
15. Wind Advisory for: Mendocino Coast; Northwestern Mendocino Interior; Northeastern Mendocino Interior; Southwestern Mendocino Interior; Southeastern Mendocino Interior; Northern Lake County; Southern Lake County
16. Wind Advisory for: Morongo Basin; Cadiz Basin
17. Wind Advisory for: North Bay Interior Mountains; East Bay Interior Valleys
18. Wind Advisory for: Orange County Coastal; Orange County Inland
19. Wind Advisory for: Salton Sea; Imperial County West; Imperial Valley
20. Wind Advisory for: San Diego County Coastal Areas; San Diego County Inland Valleys
21. Wind Advisory for: San Francisco; San Francisco Peninsula Coast; Santa Cruz Mountains; Eastern Santa Clara Hills; East Bay Hills; Northern Monterey Bay
22. Wind Advisory for: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast
23. Wind Advisory for: Santa Barbara County Southeastern Coast; Santa Ynez Mountains Eastern Range
24. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range
25. Wind Advisory for: Santa Lucia Mountains and Los Padres National Forest
26. Wind Advisory for: Southern Sacramento Valley; Carquinez Strait and Delta; Northern San Joaquin Valley
27. Wind Advisory for: Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park; Northern Salinas Valley/Hollister Valley and Carmel Valley; Southern Monterey Bay and Big Sur Coast
28. Wind Advisory for: Southern Salinas Valley; San Luis Obispo County Interior Valleys
29. Wind Advisory for: West Side Mountains north of 198; West Side Mountains South of 198; Buena Vista
30. Winter Storm Warning for: Frazier Mountain Communities
31. Winter Storm Warning for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
32. Winter Storm Warning for: Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains
33. Winter Storm Warning for: Mono
34. Winter Storm Warning for: Piute Walker Basin; Tehachapi
35. Winter Storm Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains
36. Winter Storm Warning for: Shasta Lake Area / Northern Shasta County; Mountains Southwestern Shasta County to Western Colusa County
37. Winter Storm Warning for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
38. 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; South End of the Upper Sierra
39. Winter Storm Watch for: Riverside County Mountains
40. Winter Storm Watch for: San Bernardino County Mountains
41. Winter Storm Watch for: San Diego County Mountains
42. Winter Weather Advisory for: Eastern Sierra Slopes of Inyo County; White Mountains of Inyo County
43. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
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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
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