Weather Alerts for California

Recent Locations: Paso Robles, CA  
Current Alerts for Paso Robles, CA: High Surf Advisory Wind Advisory

1. Air Quality Alert for: Coachella Valley; San Gorgonio Pass Near Banning

2. Air Quality Alert for: Imperial County Southwest; Imperial County West; Imperial Valley

3. Beach Hazards Statement for: San Diego County Coastal Areas; Orange County Coastal

4. High Surf Advisory for: Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches

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

6. High Wind Warning for: Antelope Valley

7. High Wind Warning for: Interstate 5 Corridor

8. High Wind Warning for: Mojave Desert Slopes

9. High Wind Warning for: San Miguel and Santa Rosa Islands; Santa Cruz and Anacapa Islands

10. High Wind Warning for: Western Antelope Valley Foothills

11. Wind Advisory for: Catalina and Santa Barbara Islands

12. Wind Advisory for: Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Southeastern Ventura County Valleys

13. Wind Advisory for: Cuyama Valley

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

15. Wind Advisory for: Eastern San Gabriel Mountains

16. Wind Advisory for: Eastern Sierra Slopes of Inyo County; Owens Valley

17. Wind Advisory for: Imperial County Southwest

18. Wind Advisory for: Joshua Tree NP West; Salton Sea; Imperial County Southeast; Imperial County West; Imperial Valley

19. Wind Advisory for: Lake Casitas

20. Wind Advisory for: Riverside County Mountains; San Diego County Mountains; Coachella Valley; San Diego County Deserts

21. Wind Advisory for: San Bernardino County Mountains; Apple and Lucerne Valleys

22. Wind Advisory for: San Gorgonio Pass Near Banning

23. Wind Advisory for: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley

24. Wind Advisory for: Santa Barbara County Interior Mountains

25. Wind Advisory for: Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles

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

27. Wind Advisory for: Santa Clarita Valley; Santa Susana Mountains

28. Wind Advisory for: Santa Ynez Mountains Eastern Range

29. Wind Advisory for: South End of the Upper Sierra; Piute Walker Basin; Tehachapi; Indian Wells Valley; Mojave Desert

30. Wind Advisory for: Southern Ventura County Mountains; Northern Ventura County Mountains

31. Wind Advisory for: Western Mojave Desert

32. Wind Advisory for: Western San Gabriel Mountains and Highway 14 Corridor

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Current U.S. National Radar--Current

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Current U.S. National Radar

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Today's National Weather Map

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North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow