Weather Alerts for California
1. Air Quality Alert for: Imperial Valley
2. Beach Hazards Statement for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast
3. Beach Hazards Statement for: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Southern Monterey Bay and Big Sur Coast
4. Excessive Heat Warning for: Apple and Lucerne Valleys
5. Excessive Heat Warning for: Coachella Valley; San Diego County Deserts
6. Excessive Heat Warning for: Eastern Antelope Valley Foothills; Antelope Valley
7. Excessive Heat Warning for: Indian Wells Valley; Mojave Desert
8. Excessive Heat Warning for: Kern River Valley
9. Excessive Heat Warning for: Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley; Mariposa Madera Foothills; Fresno-Tulare Foothills; South End Sierra Foothills
10. Excessive Heat Warning for: Mojave Desert Slopes
11. Excessive Heat Warning for: Owens Valley
12. Excessive Heat Warning for: San Gorgonio Pass Near Banning
13. Excessive Heat Warning for: Shasta Lake Area / Northern Shasta County; Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley; Carquinez Strait and Delta; Northern San Joaquin Valley; Mountains Southwestern Shasta County to Western Colusa County; Northeast Foothills/Sacramento Valley; Motherlode
14. Excessive Heat Warning for: West Side Mountains north of 198; West Side Mountains South of 198
15. Excessive Heat Warning for: Western Antelope Valley Foothills
16. Heat Advisory for: San Luis Obispo County Interior Valleys
17. Heat Advisory for: Santa Clara Valley Including San Jose; Eastern Santa Clara Hills; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park
18. Heat Advisory for: Sonoma Coastal Range; North Bay Interior Mountains; North Bay Interior Valleys; East Bay Interior Valleys; East Bay Hills
19. Heat Advisory for: Southern Salinas Valley
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Current U.S. National Radar--Current
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National Weather Forecast--Current
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National Weather Forecast for Tomorrow
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North America Water Vapor (Moisture)
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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
