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. Coastal Flood Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
7. Coastal Flood Advisory for: Ventura County Beaches
8. Cold Weather Advisory for: North Bay Interior Mountains; North Bay Interior Valleys; Southern Salinas Valley/Arroyo Seco and Lake San Antonio
9. Cold Weather Advisory for: Santa Cruz Mountains; Santa Clara Valley Including San Jose
10. Extreme Cold Warning for: Eastern Santa Clara Hills
11. 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
12. Flood Advisory for: Los Angeles, CA
13. Flood Advisory for: Los Angeles, CA; Ventura, CA
14. Flood Advisory for: San Luis Obispo, CA; Santa Barbara, CA
15. Flood Watch for: Santa Clarita Valley; 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; Southern Ventura County Mountains; Northern Ventura County 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
16. High Surf Advisory for: Malibu Coast; Los Angeles County Beaches
17. High Surf Advisory for: San Diego County Coastal Areas; Orange County Coastal
18. 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
19. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
20. High Surf Advisory for: Ventura County Beaches
21. High Wind Warning for: Antelope Valley
22. Special Weather Statement for: Southwestern Humboldt
23. Wind Advisory for: Apple and Lucerne Valleys
24. Wind Advisory for: Coachella Valley
25. Wind Advisory for: Imperial County Southwest
26. 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
27. Wind Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley
28. 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
29. Wind Advisory for: San Diego County Deserts
30. Wind Advisory for: San Gorgonio Pass Near Banning
31. 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
32. 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
33. Wind Advisory for: Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin
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 Ventura County Mountains; Eastern San Gabriel Mountains
41. Winter Storm Warning for: Piute Walker Basin; Tehachapi; Frazier Mountain Communities
42. Winter Storm Warning for: Riverside County Mountains
43. Winter Storm Warning for: San Bernardino County Mountains
44. Winter Storm Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor
45. 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
46. Winter Storm Warning for: South Central Siskiyou County; North Central and Southeast Siskiyou County
47. Winter Storm Warning for: Western San Gabriel Mountains and Highway 14 Corridor; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills
48. Winter Storm Warning for: Western Siskiyou County
49. Winter Storm Warning for: White Mountains of Inyo County
50. Winter Weather Advisory for: Central Siskiyou County
51. Winter Weather Advisory for: Eastern Mojave Desert, Including the Mojave National Preserve
52. Winter Weather Advisory for: Eastern Santa Clara Hills
53. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
54. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
55. Winter Weather Advisory for: Mono
56. 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
57. Winter Weather Advisory for: San Diego County Mountains
58. 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
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Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
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