Weather Alerts for California
1. Avalanche Warning for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
2. Coastal Flood Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
3. Coastal Flood Advisory for: Ventura County Beaches
4. High Surf Advisory for: Malibu Coast; Los Angeles County Beaches
5. High Surf Advisory for: San Diego County Coastal Areas; Orange County Coastal
6. 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
7. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
8. High Surf Advisory for: Ventura County Beaches
9. Wind Advisory for: Apple and Lucerne Valleys
10. Wind Advisory for: Coachella Valley
11. Wind Advisory for: Imperial County Southwest
12. 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
13. Wind Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley
14. 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
15. Wind Advisory for: San Diego County Deserts
16. Wind Advisory for: San Gorgonio Pass Near Banning
17. 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
18. Wind Advisory for: Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin
19. Winter Storm Warning for: Grapevine
20. 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
21. Winter Storm Warning for: Northern Ventura County Mountains; Eastern San Gabriel Mountains
22. Winter Storm Warning for: Piute Walker Basin; Tehachapi; Frazier Mountain Communities
23. Winter Storm Warning for: Riverside County Mountains
24. Winter Storm Warning for: San Bernardino County Mountains
25. Winter Storm Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor
26. 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
27. Winter Storm Warning for: South Central Siskiyou County; North Central and Southeast Siskiyou County
28. Winter Storm Warning for: Western San Gabriel Mountains and Highway 14 Corridor; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills
29. Winter Storm Warning for: Western Siskiyou County
30. Winter Weather Advisory for: Central Siskiyou County
31. Winter Weather Advisory for: Eastern Santa Clara Hills
32. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
33. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
34. Winter Weather Advisory for: Mono
35. 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
36. Winter Weather Advisory for: San Diego County Mountains
37. 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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