Weather Alerts for California
1. Air Quality Alert for: Calabasas and Agoura Hills; Catalina and Santa Barbara Islands; Eastern San Fernando Valley; Eastern Santa Monica Mountains Recreational Area; Los Angeles County Beaches; Los Angeles County Inland Coast including Downtown Los Angeles; Los Angeles County San Gabriel Valley; Malibu Coast; Palos Verdes Hills; Santa Clarita Valley; Santa Susana Mountains; Western San Fernando Valley; Western Santa Monica Mountains Recreational Area
2. Air Quality Alert for: Catalina and Santa Barbara Islands; Santa Clarita Valley; 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; Santa Susana Mountains; Los Angeles County San Gabriel Valley
3. Air Quality Alert for: San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; San Gorgonio Pass Near Banning; Orange County Coastal; Orange County Inland
4. Beach Hazards Statement for: Northern Monterey Bay
5. Beach Hazards Statement for: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Southern Monterey Bay and Big Sur Coast
6. High Surf Advisory for: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; 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. Wind Advisory for: Mojave Desert Slopes
10. Wind Advisory for: Mono; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area
11. Wind Advisory for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Interstate 5 Corridor
12. Winter Storm Warning for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
13. Winter Weather Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
14. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
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Current U.S. National Radar--Current
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National Weather Forecast--Current
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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 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
Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
