Weather Alerts for California
1. Air Quality Alert for: Imperial County Southwest; Chuckwalla Mountains; Imperial County Southeast; Imperial County West; Imperial Valley
2. Cold Weather Advisory for: East Bay Hills
3. Cold Weather Advisory for: Mariposa-Madera Lower Sierra; Fresno-Tulare Lower Sierra; South End of the Lower Sierra; Yosemite NP outside of the 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
4. Cold Weather Advisory for: North Bay Interior Mountains; North Bay Interior Valleys; East Bay Interior Valleys; Santa Clara Valley Including San Jose; Northern Salinas Valley/Hollister Valley and Carmel Valley
5. Cold Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
6. Cold Weather Advisory for: Yosemite Valley
7. Extreme Cold Warning for: Eastern Santa Clara Hills; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park
8. Freeze 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; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley
9. High Wind Warning for: Coastal Del Norte
10. High Wind Warning for: Del Norte Interior; Southwestern Humboldt; Northern Humboldt Interior; Southern Humboldt Interior
11. Hydrologic Outlook for: Siskiyou, CA; Coos, OR; Curry, OR; Josephine, OR
12. Hydrologic Outlook for: Siskiyou, CA; Coos, OR; Curry, OR; Josephine, OR
13. Wind Advisory for: Central Siskiyou County
14. Wind Advisory for: Mendocino Coast; Northwestern Mendocino Interior; Southwestern Mendocino Interior
15. Wind Advisory for: Northern Humboldt Coast
16. Winter Storm Warning for: Northern Trinity
17. Winter Storm Warning for: Western Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County
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Current U.S. National Radar--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 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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