Weather Alerts for California

Recent Locations: Chula Vista, CA  

1. Air Quality Alert for: Catalina and Santa Barbara Islands; Santa Clarita Valley; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Los Angeles County San Gabriel Valley

2. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; San Gorgonio Pass Near Banning; Orange County Coastal; Orange County Inland

3. Cold Weather Advisory for: Southwestern Mendocino Interior; Southeastern Mendocino Interior; Southern Lake County

4. Dense Fog Advisory for: Bakersfield

5. Dense Fog Advisory for: Visalia - Porterville - Reedley; Southeast San Joaquin Valley

6. Fire Weather Watch for: Santa Clarita Valley; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Southeastern Ventura County Valleys

7. Fire Weather Watch for: Santa Susana Mountains; Western San Gabriel Mountains and Highway 14 Corridor

8. Fire Weather Watch for: Southern Ventura County Mountains

9. Fire Weather Watch for: Ventura County Beaches; Malibu Coast

10. Fire Weather Watch for: Ventura County Inland Coast; Central Ventura County Valleys

11. Flood Advisory for: Sonoma, CA

12. Freeze Warning for: North Bay Interior Mountains; North Bay Interior Valleys; 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

13. Freeze Warning for: Northern Salinas Valley/Hollister Valley and Carmel Valley

14. Frost Advisory for: East Bay Interior Valleys; East Bay Hills

15. Frost Advisory for: East Bay Interior Valleys; East Bay Hills

16. Frost Advisory for: Marin Coastal Range; Sonoma Coastal Range; Coastal North Bay Including Point Reyes National Seashore; San Francisco Bay Shoreline; Santa Cruz Mountains; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

17. Frost Advisory for: North Bay Interior Mountains; North Bay Interior Valleys; 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

18. Frost Advisory for: Santa Clara Valley Including San Jose

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

20. High Surf Advisory for: Ventura County Beaches

21. Red Flag Warning for: Santa Clarita Valley; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Southeastern Ventura County Valleys

22. Red Flag Warning for: Santa Susana Mountains; Western San Gabriel Mountains and Highway 14 Corridor

23. Red Flag Warning for: Southern Ventura County Mountains

24. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range

25. Wind Advisory for: Santa Clarita Valley; Santa Lucia Mountains; San Luis Obispo County Mountains; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Western San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western Antelope Valley Foothills

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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).

Current U.S. National Radar

National Weather Forecast--Current

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

Today's National Weather Map

National Weather Forecast for Tomorrow

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

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Stratus Clouds Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Altocumulus Clouds Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds