Weather Alerts for California

Recent Locations: Hague, ND   Eupora, MS   San Marcos, CA  
Current Alerts for San Marcos, CA: High Surf Advisory Wind Advisory

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: Northern Humboldt Coast

7. Coastal Flood Advisory for: Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

8. Coastal Flood Advisory for: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline

9. Cold Weather Advisory for: North Bay Interior Mountains; North Bay Interior Valleys; Southern Salinas Valley/Arroyo Seco and Lake San Antonio

10. 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

11. Flood Advisory for: Marin, CA; Napa, CA; Sonoma, CA

12. Flood Watch 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; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains

13. 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

14. High Surf Advisory for: San Diego County Coastal Areas; Orange County Coastal

15. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Malibu Coast; Los Angeles County Beaches

16. High Surf Advisory for: Ventura County Beaches

17. High Wind Warning for: Antelope Valley

18. Special Weather Statement for: Northern Humboldt Coast; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior

19. Wind Advisory for: Antelope Valley

20. Wind Advisory for: Apple and Lucerne Valleys

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 Diego County Mountains

29. Wind Advisory for: San Gorgonio Pass Near Banning

30. 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

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 Sacramento Valley

41. Winter Storm Warning for: Northern Trinity; Southern Trinity

42. Winter Storm Warning for: Northern Ventura County Mountains; Eastern San Gabriel Mountains

43. Winter Storm Warning for: Northwestern Mendocino Interior; Northeastern Mendocino Interior; Northern Lake County; Southern Lake County

44. Winter Storm Warning for: Piute Walker Basin; Tehachapi; Frazier Mountain Communities

45. Winter Storm Warning for: San Bernardino County Mountains; Riverside County Mountains

46. Winter Storm Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor

47. Winter Storm Warning for: Shasta Lake Area / Northern Shasta County; Burney Basin / Eastern Shasta County; Mountains Southwestern Shasta County to Western Colusa County; Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada

48. Winter Storm Warning for: South Central Siskiyou County; North Central and Southeast Siskiyou County

49. Winter Storm Warning for: Southwestern Humboldt

50. Winter Storm Warning for: Western San Gabriel Mountains and Highway 14 Corridor; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills

51. Winter Storm Warning for: Western Siskiyou County

52. Winter Storm Warning for: White Mountains of Inyo County

53. Winter Weather Advisory for: Central Siskiyou County

54. Winter Weather Advisory for: Coastal Del Norte; Northern Humboldt Coast

55. Winter Weather Advisory for: Eastern Mojave Desert, Including the Mojave National Preserve

56. Winter Weather Advisory for: Eastern Santa Clara Hills

57. 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

58. Winter Weather Advisory for: Owens Valley

59. 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

60. Winter Weather Advisory for: Surprise Valley California

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Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

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