Weather Alerts for California

Recent Locations: Moncks Corner, SC   Century, FL   Kaweah, CA  
Current Alerts for Kaweah, CA: Winter Storm Warning

1. Air Quality Alert for: Coachella Valley

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

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

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

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

6. 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

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

8. High Surf Advisory for: Ventura County Beaches

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

10. Wind Advisory for: Apple and Lucerne Valleys

11. 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

12. Wind Advisory for: Coachella Valley

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

14. Wind Advisory for: Indian Wells Valley; Mojave Desert Slopes; Mojave Desert

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

16. 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

17. Wind Advisory for: San Diego County Deserts

18. Wind Advisory for: San Gorgonio Pass Near Banning

19. Wind Advisory for: Western Mojave Desert

20. Wind Advisory for: Western Mojave Desert

21. Winter Storm Warning for: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior

22. Winter Storm Warning for: Grapevine

23. 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

24. Winter Storm Warning for: Northern Trinity; Southern Trinity

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

26. Winter Storm Warning for: Northwestern Mendocino Interior; Northeastern Mendocino Interior; Northern Lake County; Southern Lake County

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

28. Winter Storm Warning for: Riverside County Mountains

29. Winter Storm Warning for: San Bernardino County Mountains

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

31. 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

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

33. Winter Storm Warning for: Southwestern Humboldt

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

35. Winter Storm Warning for: Western Siskiyou County

36. Winter Weather Advisory for: Central Siskiyou County

37. Winter Weather Advisory for: Coastal Del Norte; Northern Humboldt Coast

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

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

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

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

42. Winter Weather Advisory for: Modoc County; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County

43. Winter Weather Advisory for: Mono

44. Winter Weather Advisory for: Northeast Siskiyou and Northwest Modoc Counties; Klamath Basin

45. Winter Weather Advisory for: San Diego County Mountains

46. 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

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

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Today's National Weather Map

National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Contrails Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

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