Weather Alerts for California

Recent Locations: Kaylor, SD Rison, AR Grand Terrace, CA

Current Alerts for Grand Terrace, CA: Wind Advisory Winter Storm Warning

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. Cold Weather Advisory for: Coastal Del Norte; Northern Humboldt Coast; Southwestern Humboldt; Mendocino Coast; Southwestern Mendocino Interior; Southeastern Mendocino Interior; Southern Lake County

4. Cold Weather Advisory for: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior; Northern Trinity; Southern Trinity; Northwestern Mendocino Interior; Northeastern Mendocino Interior; Northern Lake County

5. Cold Weather Advisory for: Marin Coastal Range; Sonoma Coastal Range; Coastal North Bay Including Point Reyes National Seashore; San Francisco Bay Shoreline; Santa Cruz Mountains; Santa Clara Valley Including San Jose; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay

6. Cold Weather Advisory for: Mariposa-Madera Lower Sierra; Fresno-Tulare Lower Sierra; South End of the Lower Sierra; Yosemite NP outside of the 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

7. Cold Weather Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley

8. Cold Weather Advisory for: Shasta Lake Area / Northern Shasta County; Burney Basin / Eastern Shasta County; Mountains Southwestern Shasta County to Western Colusa County; Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada

9. Cold Weather Advisory for: Western Siskiyou County; Central Siskiyou County; South Central Siskiyou County

10. Extreme Cold Warning for: North Bay Interior Mountains; North Bay Interior Valleys; East Bay Interior Valleys; Eastern Santa Clara Hills; East Bay 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

11. Freeze Warning for: Carquinez Strait and Delta; Northern San Joaquin Valley

12. Freeze Warning for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley

13. Freeze Watch for: Coalinga - Avenal; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley

14. Freeze Watch for: Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis

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

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

17. 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

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

19. High Surf Advisory for: Ventura County Beaches

20. High Wind Warning for: Cuyama Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Antelope Valley

21. Hydrologic Outlook for: Siskiyou, CA; Coos, OR; Curry, OR; Josephine, OR

22. Wind Advisory for: Apple and Lucerne Valleys

23. Wind Advisory for: Catalina and Santa Barbara Islands; Santa Clarita Valley; 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; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; 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; Southeastern Ventura County Valleys; Santa Susana Mountains; Southern Ventura County Mountains; Los Angeles County San Gabriel Valley

24. Wind Advisory for: Coachella Valley

25. Wind Advisory for: Imperial County Southwest

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

27. Wind Advisory for: Joshua Tree NP West; Chuckwalla Mountains; Chiriaco Summit

28. Wind Advisory for: Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis

29. Wind Advisory for: Mojave Desert Slopes

30. Wind Advisory for: Morongo Basin

31. 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

32. Wind Advisory for: San Diego County Deserts

33. Wind Advisory for: San Gorgonio Pass Near Banning

34. Wind Advisory for: West Side Mountains north of 198; Mariposa Madera Foothills

35. Wind Advisory for: Western Mojave Desert

36. Winter Storm Warning for: Grapevine

37. 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

38. Winter Storm Warning for: Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada

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

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

41. Winter Storm Warning for: Riverside County Mountains

42. Winter Storm Warning for: San Bernardino County Mountains

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

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

45. Winter Storm Watch for: Western Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County

46. Winter Weather Advisory for: Eastern Mojave Desert, Including the Mojave National Preserve

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

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

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

50. Winter Weather Advisory for: Mono

51. Winter Weather Advisory for: San Diego County Mountains

52. 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

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 Altostratus Clouds?

Home - Education - Cloud Types - 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

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