Weather Alerts for California

Recent Locations: Moncks Corner, SC Freedom, PA San Bruno, CA

1. Avalanche Warning for: Greater Lake Tahoe Area; Greater Lake Tahoe Area

2. Beach Hazards Statement for: Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast

3. Coastal Flood Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches

4. Coastal Flood Advisory for: Ventura County Beaches

5. Cold Weather Advisory for: North Bay Interior Mountains; North Bay Interior Valleys; Southern Salinas Valley/Arroyo Seco and Lake San Antonio

6. Cold Weather Advisory for: Santa Cruz Mountains; Santa Clara Valley Including San Jose

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

8. Extreme Cold Warning for: Eastern Santa Clara Hills

9. Extreme Cold Warning for: Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park

10. High Surf Advisory for: Malibu Coast; Los Angeles County Beaches

11. High Surf Advisory for: San Diego County Coastal Areas; Orange County Coastal

12. High Surf Advisory 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

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

14. High Surf Advisory for: Ventura County Beaches

15. Wind Advisory for: Apple and Lucerne Valleys

16. Wind Advisory for: Coachella Valley

17. Wind Advisory for: Imperial County Southwest

18. Wind Advisory for: Joshua Tree NP West; Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Imperial County West; Chiriaco Summit; Palo Verde Valley; Chuckwalla Valley

19. Wind Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley

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

21. Wind Advisory for: San Diego County Deserts

22. Wind Advisory for: San Gorgonio Pass Near Banning

23. Wind Advisory for: Santa Barbara County Southeastern Coast; Santa Ynez Mountains Eastern Range

24. Wind Advisory for: West Side Mountains north of 198; West Side Mountains South of 198; Buena Vista; Indian Wells Valley; Mojave Desert Slopes; Mojave Desert

25. Wind Advisory for: Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin

26. Winter Storm Warning for: Grapevine

27. Winter Storm Warning for: Mariposa-Madera Lower Sierra; Fresno-Tulare Lower Sierra; South End of the Lower Sierra; Yosemite NP outside of the valley; Yosemite Valley; San Joaquin River Canyon; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP; South End of the Upper Sierra

28. Winter Storm Warning for: Northern Ventura County Mountains; Eastern San Gabriel Mountains

29. Winter Storm Warning for: Piute Walker Basin; Tehachapi; Frazier Mountain Communities

30. Winter Storm Warning for: Riverside County Mountains

31. Winter Storm Warning for: San Bernardino County Mountains

32. Winter Storm Warning for: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Interstate 5 Corridor

33. Winter Storm Warning for: Shasta Lake Area / Northern Shasta County; Burney Basin / Eastern Shasta County; Northern Sacramento Valley; Mountains Southwestern Shasta County to Western Colusa County; Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada

34. Winter Storm Warning for: South Central Siskiyou County; North Central and Southeast Siskiyou County

35. Winter Storm Warning for: Western San Gabriel Mountains and Highway 14 Corridor; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills

36. Winter Storm Warning for: Western Siskiyou County

37. Winter Weather Advisory for: Central Siskiyou County

38. Winter Weather Advisory for: Eastern Santa Clara Hills

39. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties; Greater Lake Tahoe Area; Mono; Greater Lake Tahoe Area

40. Winter Weather Advisory for: Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County

41. Winter Weather Advisory for: San Diego County Mountains

42. Winter Weather Advisory for: Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park

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Current U.S. National Radar--Current

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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 is Fog?

Home - Education - Cloud Types - Fog

Fog Next Topic: Fractus Clouds

Fog is technically a type of stratus cloud, which lies along the ground and obscures visibility.

It is usually created when humidity in the air condenses into tiny water droplets. Because of this, some places are more prone to foggy weather, such as regions close to a body of water.

Fog is similar to mist; both are the appearance of water droplets suspended in the air, but fog is the term applied to the condition when visibility is less than 1 km.

Next Topic: Fractus Clouds

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