Weather Alerts for California
1. Flash Flood Warning for: Nevada, CA; Sierra, CA; Washoe, NV
2. Flash Flood Warning for: San Bernardino, CA
3. Flash Flood Warning for: San Bernardino, CA
4. Flood Advisory for: Alpine, CA
5. Flood Advisory for: Riverside, CA
6. Flood Advisory for: Riverside, CA; San Bernardino, CA
7. Flood Advisory for: San Bernardino, CA
8. Flood Advisory for: San Bernardino, CA
9. Flood Watch for: Eastern Sierra Slopes of Inyo County; Owens Valley; White Mountains of Inyo County; Death Valley National Park; Esmeralda and Central Nye County
10. Flood Watch for: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Mineral and Southern Lyon Counties; Greater Lake Tahoe Area; Greater Reno-Carson City-Minden Area
11. Flood Watch 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; Kern River Valley; Piute Walker Basin
12. Red Flag Warning for: Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Umpqua National Forest; Southern Oregon Cascades; Klamath Basin and the Fremont-Winema National Forest; South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties
13. Red Flag Warning for: Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley; Umpqua National Forest; Southern Oregon Cascades; Klamath Basin and the Fremont-Winema National Forest; South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties
14. Red Flag Warning for: Trinity
15. Red Flag Warning for: Western Klamath National Forest; Shasta-Trinity National Forest in Siskiyou County; Western Rogue Basin including the Illinois Valley; Siskiyou Mountains; Eastern Rogue Valley
16. Severe Thunderstorm Warning for: Lassen, CA; Plumas, CA
17. Severe Thunderstorm Warning for: Los Angeles, CA
18. Severe Thunderstorm Warning for: San Bernardino, CA
19. Special Weather Statement for: Central Siskiyou County
20. Special Weather Statement for: Kern River Valley; Piute Walker Basin; Mojave Desert Slopes
21. Special Weather Statement for: Northern Trinity
22. Special Weather Statement for: Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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
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