Weather Alerts for California
1. Air Quality Alert for: Coachella Valley; San Gorgonio Pass Near Banning
2. Air Quality Alert for: Imperial County Southwest; Imperial County West; Imperial Valley
3. Flood Advisory for: Amador, CA; Calaveras, CA; El Dorado, CA; Nevada, CA; Placer, CA; Sacramento, CA; San Joaquin, CA; Stanislaus, CA; Sutter, CA; Tuolumne, CA; Yolo, CA
4. High Wind Warning for: Death Valley National Park; Esmeralda and Central Nye County
5. Severe Thunderstorm Warning for: Fresno, CA; Madera, CA
6. Severe Thunderstorm Warning for: Fresno, CA; Tulare, CA
7. Special Weather Statement for: Planada - Le Grand - Snelling; Fresno-Clovis; Mariposa Madera Foothills; Mariposa-Madera Lower Sierra; Fresno-Tulare Foothills; Fresno-Tulare Lower Sierra; San Joaquin River Canyon; Upper San Joaquin River; Kaiser to Rodgers Ridge
8. Special Weather Statement for: Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft; Northern Sacramento Valley in Tehama County; Eastern Glenn County; Butte County Below 1000 ft
9. Wind Advisory for: Apple and Lucerne Valleys; San Diego County Deserts
10. Wind Advisory for: Eastern Sierra Slopes of Inyo County; White Mountains of Inyo County; Owens Valley South; Owens Valley North; Lincoln County
11. Wind Advisory for: Imperial County Southwest
12. Wind Advisory for: Indian Wells Valley; Mojave Desert
13. Wind Advisory for: 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
14. Wind Advisory for: Joshua Tree NP West
15. Wind Advisory for: Mojave Desert Slopes
16. Wind Advisory for: Riverside County Mountains; San Diego County Mountains
17. Wind Advisory for: San Bernardino County Mountains
18. Wind Advisory for: San Gorgonio Pass Near Banning
19. Winter Storm Warning for: Lassen Volcanic National Park; Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft; Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 ft Including Highway 50; Sierra Nevada of Calaveras-Tuolumne-Southern Alpine Counties Above 5000 ft
20. Winter Storm Warning for: Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Sequoia NP
21. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
22. Winter Weather Advisory for: Mono
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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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