Weather Alerts for California
1. Air Quality Alert for: Coachella Valley
2. Frost Advisory for: Northeastern Mendocino Interior
3. Frost Advisory for: Northern Lake County
4. Frost Advisory for: Southern Trinity
5. High Wind Warning for: Interstate 5 Corridor
6. High Wind Warning for: Mojave Desert Slopes
7. High Wind Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains
8. High Wind Warning for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range
9. High Wind Warning for: Santa Ynez Mountains Eastern Range
10. High Wind Warning for: Western Antelope Valley Foothills
11. Red Flag Warning for: Indian Wells Valley
12. Red Flag Warning for: Kern County Desert
13. Red Flag Warning for: Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft; Central Sacramento Valley including Glenn/Colusa/Yuba/Northern Sutter/Butte County Below 1000 Ft; Southern Sacramento Valley In Yolo/Sacramento/Far Western Placer/Southern Sutter and Solano County Below 1000 Ft - Excludes the Delta; Eastern Delta; Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft - Excludes the Delta; Southeast Edge Shasta/Trinity NF and Western Portions of Tehama/Glenn RU; Eastern Mendocino NF
14. Red Flag Warning for: Southern Mono County; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Southern Sierra Front - Alpine/Northern Mono/Southern Lyon/Western Mineral Counties; West Humboldt Basin - Pershing County; Lahontan Basin - Churchill and Eastern Mineral Counties; Northern Washoe County
15. Wind Advisory for: Apple and Lucerne Valleys
16. Wind Advisory for: Eastern Antelope Valley Foothills; Antelope Valley
17. Wind Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
18. Wind Advisory for: Imperial County Southwest
19. Wind Advisory for: Indian Wells Valley; Mojave Desert
20. Wind Advisory for: Interstate 5 Corridor
21. Wind Advisory for: Lake Casitas
22. Wind Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties; Mono; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake; Northern Washoe County
23. Wind Advisory for: San Diego County Deserts
24. Wind Advisory for: San Gorgonio Pass Near Banning
25. Wind Advisory for: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast
26. Wind Advisory for: San Luis Obispo County Mountains
27. Wind Advisory for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains
28. Wind Advisory for: Santa Barbara County Southeastern Coast
29. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range
30. Wind Advisory for: Santa Lucia Mountains; Southern Salinas Valley
31. Wind Advisory for: Santa Ynez Mountains Eastern Range
32. Wind Advisory for: Santa Ynez Valley
33. Wind Advisory for: Western Antelope Valley Foothills
34. Wind Advisory for: Western Mojave Desert
35. Wind Advisory for: Western San Gabriel Mountains and Highway 14 Corridor
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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