Weather Alerts for California

Recent Locations: Empire, CA  

1. Beach Hazards Statement for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast

2. Beach Hazards Statement for: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

3. Fire Weather Watch for: Eastern San Gabriel Mountains

4. Fire Weather Watch for: Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor

5. Fire Weather Watch for: Malibu Coast

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

7. Fire Weather Watch for: Southern Ventura County Mountains; Northern Ventura County Mountains

8. Fire Weather Watch for: Ventura County Beaches; Ventura County Inland Coast

9. Fire Weather Watch for: Western Santa Monica Mountains Recreational Area; Santa Susana Mountains

10. 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

11. High Wind Watch 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; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains

12. Red Flag Warning for: Eastern San Gabriel Mountains

13. Red Flag Warning for: Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor

14. Red Flag Warning for: Los Angeles County San Gabriel Valley

15. Red Flag Warning for: Malibu Coast

16. Red Flag Warning for: San Bernardino and Riverside County Valleys - The Inland Empire; San Diego County Inland Valleys; San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest; Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest; Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest; San Diego County Mountains-Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest; San Gorgonio Pass Near Banning; Orange County Inland

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

18. Red Flag Warning for: Southern Ventura County Mountains; Northern Ventura County Mountains

19. Red Flag Warning for: Ventura County Beaches; Ventura County Inland Coast

20. Red Flag Warning for: Western Santa Monica Mountains Recreational Area; Santa Susana Mountains

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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 Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Altostratus Clouds Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds