Weather Alerts for California
1. Avalanche Warning for: Eastern Sierra Slopes of Inyo County
2. Avalanche Warning for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
3. Avalanche Warning for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
4. Avalanche Warning for: Mono
5. Beach Hazards Statement for: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
6. Cold Weather Advisory for: North Bay Interior Mountains; North Bay Interior Valleys; Southern Salinas Valley/Arroyo Seco and Lake San Antonio
7. Cold Weather Advisory for: Santa Cruz Mountains; Santa Clara Valley Including San Jose
8. Extreme Cold Warning for: Eastern Santa Clara Hills
9. Extreme Cold Warning for: Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park
10. Flood Advisory for: Alameda, CA; Contra Costa, CA; San Francisco, CA; San Mateo, CA; Santa Clara, CA; Santa Cruz, CA
11. Flood Advisory for: Monterey, CA
12. High Surf Advisory for: San Diego County Coastal Areas; Orange County Coastal
13. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Malibu Coast; Los Angeles County Beaches
14. High Surf Advisory for: Ventura County Beaches
15. High Wind Warning for: Antelope Valley
16. Special Weather Statement for: Santa Lucia Mountains; Southern Salinas Valley
17. Special Weather Statement for: 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
18. Wind Advisory for: Antelope Valley
19. Wind Advisory for: Apple and Lucerne Valleys
20. Wind Advisory for: Coachella Valley
21. Wind Advisory for: Cuyama Valley; San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Barbara County Southwestern Coast
22. Wind Advisory for: Death Valley National Park
23. Wind Advisory for: Imperial County Southwest
24. Wind Advisory for: Joshua Tree NP West; Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Imperial County West; Chiriaco Summit; Palo Verde Valley; Chuckwalla Valley
25. Wind Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley
26. Wind Advisory for: San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
27. Wind Advisory for: San Diego County Deserts
28. Wind Advisory for: San Gorgonio Pass Near Banning
29. Wind Advisory for: Santa Clarita Valley; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Eastern Range; 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; Los Angeles County San Gabriel Valley
30. Wind Advisory for: Santa Ynez Mountains Western Range
31. Wind Advisory for: West Side Mountains north of 198; West Side Mountains South of 198; Buena Vista; Indian Wells Valley; Mojave Desert Slopes; Mojave Desert
32. Wind Advisory for: Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin
33. Winter Storm Warning for: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior
34. Winter Storm Warning for: Eastern Sierra Slopes of Inyo County
35. Winter Storm Warning for: Grapevine
36. Winter Storm Warning for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
37. Winter Storm Warning for: Lassen-Eastern Plumas-Eastern Sierra Counties
38. Winter Storm Warning for: Mariposa-Madera Lower Sierra; Fresno-Tulare Lower Sierra; South End of the Lower Sierra; Yosemite NP outside of the valley; Yosemite Valley; San Joaquin River Canyon; 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 Warning for: Mono
40. Winter Storm Warning for: Northern Trinity; Southern Trinity
41. Winter Storm Warning for: Northern Ventura County Mountains; Eastern San Gabriel Mountains
42. Winter Storm Warning for: Northwestern Mendocino Interior; Northeastern Mendocino Interior; Northern Lake County; Southern Lake County
43. Winter Storm Warning for: Piute Walker Basin; Tehachapi; Frazier Mountain Communities
44. Winter Storm Warning for: San Bernardino County Mountains; Riverside County Mountains
45. Winter Storm Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor
46. Winter Storm Warning for: Shasta Lake Area / Northern Shasta County; Burney Basin / Eastern Shasta County; Northern Sacramento Valley; Mountains Southwestern Shasta County to Western Colusa County; Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
47. Winter Storm Warning for: South Central Siskiyou County; North Central and Southeast Siskiyou County
48. Winter Storm Warning for: Southwestern Humboldt
49. Winter Storm Warning for: Western San Gabriel Mountains and Highway 14 Corridor; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills
50. Winter Storm Warning for: Western Siskiyou County
51. Winter Storm Warning for: White Mountains of Inyo County
52. Winter Weather Advisory for: Central Siskiyou County
53. Winter Weather Advisory for: Coastal Del Norte; Northern Humboldt Coast
54. Winter Weather Advisory for: Eastern Mojave Desert, Including the Mojave National Preserve
55. Winter Weather Advisory for: Eastern Santa Clara Hills
56. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
57. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
58. Winter Weather Advisory for: Mono
59. Winter Weather Advisory for: Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
60. Winter Weather Advisory for: Owens Valley
61. Winter Weather Advisory for: San Diego County Mountains
62. Winter Weather Advisory for: Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park
63. Winter Weather Advisory for: Surprise Valley California
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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
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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