Weather Alerts for California

Recent Locations: Lafayette, LA Beaumont, TX Visalia, CA

1. Flood Advisory for: Glenn, CA; Tehama, CA

2. High Wind Warning for: Lassen-Eastern Plumas-Eastern Sierra Counties

4. High Wind Watch for: Grapevine; Mojave Desert Slopes

5. Wind Advisory for: Coastal Del Norte; Del Norte Interior

6. Wind Advisory for: Indian Wells Valley; Mojave Desert

7. Wind Advisory for: Modoc County

8. Wind Advisory for: Owens Valley; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve

9. Wind Advisory for: San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; Apple and Lucerne Valleys; Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning

10. Wind Advisory for: Surprise Valley California; Northern Washoe County

11. Wind Advisory for: Western Mojave Desert

12. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area

13. Winter Weather Advisory for: Modoc County

14. Winter Weather Advisory for: Mono

15. Winter Weather Advisory for: Northern Trinity

16. Winter Weather Advisory for: West Slope Northern Sierra Nevada

17. Winter Weather Advisory for: Western Siskiyou County

18. Winter Weather Advisory for: Yosemite NP outside of the valley; Upper San Joaquin River

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