Weather Alerts for California
1. Air Quality Alert for: Catalina and Santa Barbara Islands; Santa Clarita Valley; 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; Santa Susana Mountains; Los Angeles County San Gabriel Valley
2. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; Santa Ana Mountains and Foothills; San Gorgonio Pass Near Banning; Orange County Coastal; Orange County Inland
3. Beach Hazards Statement for: San Diego County Coastal Areas
4. Beach Hazards Statement for: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast
5. Coastal Flood Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
6. Dense Fog Advisory for: Merced - Madera - Mendota; Planada - Le Grand - Snelling; Caruthers - San Joaquin - Selma; Fresno-Clovis; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley
7. Fire Weather Watch for: Santa Clarita Valley; Ventura County Beaches; Ventura County Inland Coast; Central Ventura County Valleys; Malibu Coast; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Western San Gabriel Mountains and Highway 14 Corridor
8. Flood Warning for: Sonoma, CA
9. Flood Watch for: Coastal Del Norte; Del Norte Interior; Northern Humboldt Interior
10. Flood Watch for: Northern Humboldt Coast; Southern Humboldt Interior
11. Flood Watch for: Western Siskiyou County; Central Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County; South Central Oregon Coast; Curry County Coast; Central Douglas County; Eastern Curry County and Josephine County; Eastern Douglas County Foothills; Jackson County
12. High Surf Advisory for: Malibu Coast; Los Angeles County Beaches
13. 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
14. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
15. High Surf Advisory for: Ventura County Beaches
16. High Wind Warning for: Modoc County; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
17. High Wind Watch for: Central Siskiyou County
18. High Wind Watch for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
19. High Wind Watch for: Modoc County; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County
20. High Wind Watch for: Mono; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area
21. Wind Advisory for: Central Siskiyou County
22. Wind Advisory for: Interstate 5 Corridor
23. Wind Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Northeast Foothills/Sacramento Valley
24. Wind Advisory for: Owens Valley
25. Wind Advisory for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains
26. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range
27. Wind Advisory for: Santa Clarita Valley
28. Wind Advisory for: Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
29. Wind Advisory for: Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains
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North America Water Vapor (Moisture)
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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
