Weather Alerts for California
1. Air Quality Alert for: Imperial County Southwest; Imperial County West; Imperial Valley
2. High Wind Warning for: Central Siskiyou County
3. High Wind Warning for: Death Valley National Park
4. Lake Wind Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Greater Lake Tahoe Area
5. Wind Advisory for: Apple and Lucerne Valleys; San Diego County Deserts
6. Wind Advisory for: Eastern Sierra Slopes of Inyo County; White Mountains of Inyo County; Owens Valley South; Owens Valley North; Lincoln County
7. Wind Advisory for: Imperial County Southwest
8. Wind Advisory for: Indian Wells Valley; Mojave Desert
9. 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
10. Wind Advisory for: Mojave Desert Slopes
11. Wind Advisory for: Riverside County Mountains; San Diego County Mountains
12. Wind Advisory for: San Bernardino County Mountains
13. Wind Advisory for: San Gorgonio Pass Near Banning
14. 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
15. Winter Storm Warning for: Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Sequoia NP
16. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
17. Winter Weather Advisory for: Mono
18. Winter Weather Advisory for: Northeastern Trinity
19. Winter Weather Advisory for: Western Siskiyou County; Central Siskiyou County; South Central Siskiyou County
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North America Water Vapor (Moisture)
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Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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