Weather Alerts for California
1. Air Quality Alert for: Imperial County Southwest; Chuckwalla Mountains; Imperial County Southeast; Imperial County West; Imperial Valley
2. Avalanche Warning for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
3. Beach Hazards Statement for: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
4. Cold Weather Advisory for: Coastal Del Norte; Southwestern Humboldt
5. Cold Weather Advisory for: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior
6. Cold Weather Advisory for: Marin Coastal Range; Sonoma Coastal Range; Coastal North Bay Including Point Reyes National Seashore; San Francisco Bay Shoreline; Santa Cruz Mountains; Santa Clara Valley Including San Jose; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay
7. Cold Weather Advisory for: Mariposa-Madera Lower Sierra; Fresno-Tulare Lower Sierra; South End of the Lower Sierra; Yosemite NP outside of the 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
8. Cold Weather Advisory for: Northern Humboldt Coast; Mendocino Coast; Southwestern Mendocino Interior; Southeastern Mendocino Interior; Southern Lake County
9. Cold Weather Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley
10. Cold Weather Advisory for: Northern Trinity; Southern Trinity; Northwestern Mendocino Interior; Northeastern Mendocino Interior; Northern Lake County
11. Cold Weather Advisory 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
12. Cold Weather Advisory for: Western Siskiyou County; Central Siskiyou County; South Central Siskiyou County
13. Extreme Cold Warning for: North Bay Interior Mountains; North Bay Interior Valleys; East Bay Interior Valleys; Eastern Santa Clara Hills; East Bay Hills; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park
14. Freeze Warning for: Carquinez Strait and Delta; Northern San Joaquin Valley
15. Freeze Warning for: Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
16. Freeze Warning for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley
17. Frost Advisory for: Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley
18. Frost Advisory for: Santa Clarita Valley; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Calabasas and Agoura Hills; Southeastern Ventura County Valleys
19. High Surf Advisory for: Malibu Coast; Los Angeles County Beaches
20. High Surf Advisory for: San Diego County Coastal Areas; Orange County Coastal
21. 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
22. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
23. High Surf Advisory for: Ventura County Beaches
24. Hydrologic Outlook for: Siskiyou, CA; Coos, OR; Curry, OR; Josephine, OR
25. Wind Advisory for: Apple and Lucerne Valleys
26. Wind Advisory for: Coachella Valley
27. Wind Advisory for: Coastal Del Norte; Southwestern Humboldt
28. Wind Advisory for: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior
29. Wind Advisory for: Imperial County Southwest
30. Wind Advisory for: Indian Wells Valley; Mojave Desert
31. Wind Advisory for: Joshua Tree NP West; Chuckwalla Mountains; Chiriaco Summit
32. Wind Advisory for: Mojave Desert Slopes
33. Wind Advisory for: Morongo Basin
34. 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
35. Wind Advisory for: San Diego County Deserts
36. Wind Advisory for: San Gorgonio Pass Near Banning
37. Wind Advisory for: Western Mojave Desert
38. Winter Storm Warning for: Grapevine
39. Winter Storm Warning for: Northern Ventura County Mountains; Eastern San Gabriel Mountains
40. Winter Storm Warning for: Piute Walker Basin; Tehachapi; Frazier Mountain Communities
41. Winter Storm Warning for: Riverside County Mountains
42. Winter Storm Warning for: San Bernardino County Mountains
43. Winter Storm Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor
44. Winter Storm Warning for: Western San Gabriel Mountains and Highway 14 Corridor; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills
45. Winter Storm Watch for: Northern Trinity
46. Winter Storm Watch for: Western Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County
47. Winter Weather Advisory for: San Diego County Mountains
48. 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 Hole Punch Clouds?
Home - Education - Cloud Types - 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
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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