Weather Alerts for California
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. Frost Advisory for: Northern Trinity; Southern Trinity; Northwestern Mendocino Interior; Northeastern Mendocino Interior; Northern Lake County
5. High Surf Advisory for: Catalina and Santa Barbara Islands
6. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
7. High Surf Advisory for: Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
8. High Wind Warning for: Antelope Valley
9. High Wind Warning for: Interstate 5 Corridor
10. High Wind Warning for: Mojave Desert Slopes
11. High Wind Warning for: Western Antelope Valley Foothills
12. Wind Advisory for: Antelope Valley
13. Wind Advisory for: Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin
14. Wind Advisory for: Eastern San Gabriel Mountains
15. Wind Advisory for: Eastern Sierra Slopes of Inyo County; Owens Valley
16. Wind Advisory for: Imperial County Southwest
17. Wind Advisory for: Joshua Tree NP West; Salton Sea; Imperial County Southeast; Imperial County West; Imperial Valley
18. Wind Advisory for: Riverside County Mountains; San Diego County Mountains; Coachella Valley; San Diego County Deserts
19. Wind Advisory for: San Bernardino County Mountains; Apple and Lucerne Valleys
20. Wind Advisory for: San Gorgonio Pass Near Banning
21. 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
22. Wind Advisory for: Santa Barbara County Interior Mountains
23. 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
24. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range
25. Wind Advisory for: Santa Clarita Valley; Santa Susana Mountains
26. Wind Advisory for: Santa Ynez Mountains Eastern Range
27. Wind Advisory for: South End of the Upper Sierra; Piute Walker Basin; Tehachapi; Indian Wells Valley; Mojave Desert
28. Wind Advisory for: Southern Ventura County Mountains; Northern Ventura County Mountains
29. Wind Advisory for: Western Mojave Desert
30. 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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National Weather Forecast for Tomorrow
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North America Water Vapor (Moisture)
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Weather Topic: What is Sleet?
Home - Education - Precipitation - 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
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds