Weather Alerts for California
1. Extreme Heat Warning for: Coachella Valley; San Diego County Deserts
2. Extreme Heat Warning for: Indian Wells Valley; Mojave Desert Slopes; Mojave Desert
3. Extreme Heat Warning for: San Gorgonio Pass Near Banning
4. Extreme Heat Warning for: Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
5. Extreme Heat Warning for: Western Siskiyou County; Central Siskiyou County
6. Heat Advisory for: Cuyama Valley; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains
7. Heat Advisory for: North Central and Southeast Siskiyou County; Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Klamath Basin
8. Heat Advisory for: Northern Humboldt Interior
9. Heat Advisory for: Northern Trinity
10. Heat Advisory for: Riverside County Mountains; San Diego County Mountains
11. Heat Advisory for: San Bernardino and Riverside County Valleys-The Inland Empire
12. Heat Advisory for: San Bernardino County Mountains
13. Heat Advisory for: South Central Siskiyou County
14. Heat Advisory for: Surprise Valley California; Lassen-Eastern Plumas-Eastern Sierra Counties; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake; Northern Washoe County
15. Heat Advisory for: West Side Mountains north of 198; 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; West Side Mountains South of 198; 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
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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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