Weather Alerts for California
1. Air Quality Alert for: Eastern San Fernando Valley; Eastern San Gabriel Mountains; Eastern Santa Monica Mountains Recreational Area; Los Angeles County Beaches; Los Angeles County Inland Coast including Downtown Los Angeles; Los Angeles County San Gabriel Valley; Malibu Coast; Palos Verdes Hills; Santa Clarita Valley; Santa Susana Mountains; Western San Fernando Valley; Western San Gabriel Mountains and Highway 14 Corridor; Western Santa Monica Mountains Recreational Area
2. Air Quality Alert for: Joshua Tree NP West; Joshua Tree NP East; Chuckwalla Mountains; Chiriaco Summit; Chuckwalla Valley
3. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; San Bernardino County Mountains; Riverside County Mountains; Santa Ana Mountains and Foothills; Coachella Valley; San Gorgonio Pass Near Banning; Orange County Coastal; Orange County Inland
4. Beach Hazards Statement for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast
5. Freeze Warning for: Cuyama Valley; Southern Salinas Valley; Ojai Valley
6. Freeze Warning for: Merced - Madera - Mendota; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Buena Vista; South End San Joaquin Valley
7. Freeze Warning for: San Luis Obispo County Interior Valleys; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley
8. Freeze Warning for: Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley
9. Frost Advisory for: 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
10. Red Flag Warning for: Northern Ventura County Mountains
11. Red Flag Warning for: San Bernardino and Riverside County Valleys - The Inland Empire; San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest
12. Red Flag Warning for: San Diego County Inland Valleys; Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest; San Diego County Mountains-Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest
13. Red Flag Warning for: San Gorgonio Pass Near Banning
14. Red Flag Warning for: San Luis Obispo County Mountains; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Lake Casitas; Ojai Valley
15. Red Flag Warning for: Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest; Orange County Inland
16. Red Flag Warning for: Santa Clarita Valley; Malibu Coast; Eastern Santa Monica Mountains Recreational Area; Eastern San Fernando Valley; Eastern San Gabriel Mountains
17. Red Flag Warning for: Santa Susana Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor
18. Red Flag Warning for: Ventura County Beaches; Ventura County Inland Coast; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Southeastern Ventura County Valleys; Southern Ventura County Mountains
19. Wind Advisory for: Eastern Santa Monica Mountains Recreational Area; Eastern San Fernando Valley; Northern Ventura County Mountains
20. Wind Advisory for: Mojave Desert Slopes
21. Wind Advisory for: San Bernardino and Riverside County Valleys-The Inland Empire; San Bernardino County Mountains; Santa Ana Mountains and Foothills; San Gorgonio Pass Near Banning; Orange County Inland
22. Wind Advisory for: San Diego County Inland Valleys; Riverside County Mountains; San Diego County Mountains
23. Wind Advisory for: Santa Clarita Valley; Malibu Coast; Calabasas and Agoura Hills; Eastern San Gabriel Mountains
24. Wind Advisory for: Ventura County Beaches; Ventura County Inland Coast; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Western San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor
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North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
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
