Weather Alerts for California

Recent Locations: Cullman, AL Brainard, NY Esparto, CA

1. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; Santa Ana Mountains and Foothills; Coachella Valley; San Gorgonio Pass Near Banning; Orange County Inland

2. High Wind Warning for: Santa Susana Mountains; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains

3. Wind Advisory for: Catalina and Santa Barbara Islands; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles; Los Angeles County San Gabriel Valley

4. Wind Advisory for: Eastern Santa Monica Mountains Recreational Area; Interstate 5 Corridor

5. Wind Advisory for: Eastern Sierra Slopes of Inyo County

6. Wind Advisory for: Joshua Tree NP West; Joshua Tree NP East; Chuckwalla Mountains; Chiriaco Summit; Palo Verde Valley; Chuckwalla Valley

7. Wind Advisory for: Owens Valley; White Mountains of Inyo County; Death Valley National Park; Morongo Basin; Lincoln County; Western Clark and Southern Nye County

8. Wind Advisory for: Piute Walker Basin; Tehachapi; Indian Wells Valley; Mojave Desert Slopes; Mojave Desert

9. Wind Advisory for: San Bernardino and Riverside County Valleys-The Inland Empire; San Bernardino County Mountains; Santa Ana Mountains and Foothills; Orange County Inland

10. Wind Advisory for: San Diego County Inland Valleys; Riverside County Mountains; San Diego County Mountains; San Gorgonio Pass Near Banning

11. Wind Advisory for: Santa Clarita Valley; Ventura County Beaches; Ventura County Inland Coast; Central Ventura County Valleys; Malibu Coast; Western Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Southern Ventura County Mountains; Northern Ventura County Mountains

12. Wind Advisory for: Santa Susana Mountains; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains

13. Wind Advisory for: Western Antelope Valley Foothills

14. Wind Advisory for: Western Mojave Desert

15. Wind Advisory for: Yosemite NP outside of the valley; Upper San Joaquin River; Kings Canyon NP; Sequoia NP; South End of the Upper Sierra

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

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 are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails