Weather Alerts for California

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1. Flood Advisory for: Santa Barbara, CA

2. High Surf Advisory for: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches

3. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches

4. High Surf Advisory for: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast

5. High Wind Warning for: Grapevine

6. Wind Advisory for: Cuyama Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; 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

7. Wind Advisory for: Owens Valley; Esmeralda and Central Nye County

8. Wind Advisory for: San Bernardino County Mountains; Apple and Lucerne Valleys

9. Wind Advisory for: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Southern Salinas Valley; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Barbara County Southwestern Coast

10. Wind 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; Northern Salinas Valley/Hollister Valley and Carmel Valley; Southern Monterey Bay and Big Sur Coast

11. Wind Advisory for: West Side Mountains north of 198; West Side Mountains South of 198; Buena Vista; Tehachapi; Frazier Mountain Communities; Mojave Desert Slopes

12. Winter Storm Warning for: Yosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge

13. Winter Weather Advisory for: Eastern Sierra Slopes of Inyo County

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

15. Winter Weather Advisory for: Kings Canyon NP; Grant Grove Area; Sequoia NP; South End of the Upper Sierra

16. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties

17. Winter Weather Advisory for: Mono

18. Winter Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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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 is Freezing Rain?

Home - Education - Precipitation - Freezing Rain

Next Topic: Graupel

Freezing rain is a condition where precipitation which has fallen in the form of water droplets reaches temperatures which are below freezing and freezes upon coming into contact with surface objects. The result of this precipitation is a glaze of ice which can be damaging to plants and man-made structures. A severe onset of freezing rain which results in a very thick glaze of ice is known as an ice storm.

Next Topic: Graupel

Weather Topic: What is Hail?

Home - Education - Precipitation - Hail

Hail Next Topic: Hole Punch Clouds

Hail is a form of precipitation which is recognized by large solid balls or clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind. As the hailstones remain in the updraft, ice is deposited onto them until their weight becomes heavy enough for them to fall to the earth's surface.

Hail storms can cause significant damage to crops, aircrafts, and man-made structures, despite the fact that the duration is usually less than ten minutes.

Next Topic: Hole Punch Clouds