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 Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds