Weather Alerts for California

Recent Locations: Lake Hughes, CA Marlette, MI Freedom, CA

1. Beach Hazards Statement for: Coastal North Bay Including Point Reyes National Seashore; Northern Monterey Bay

2. Beach Hazards Statement for: Ventura County Beaches; Malibu Coast; Los Angeles County Beaches

3. Extreme Heat Warning for: Coachella Valley; San Diego County Deserts

4. Extreme Heat Warning for: Indian Wells Valley; Mojave Desert Slopes; Mojave Desert

5. Extreme Heat Warning for: San Gorgonio Pass Near Banning

6. Extreme Heat Warning for: Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley

7. Extreme Heat Warning for: Western Siskiyou County; Central Siskiyou County

8. Heat Advisory for: Cuyama Valley; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains

9. Heat Advisory for: North Central and Southeast Siskiyou County; Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Klamath Basin

10. Heat Advisory for: Riverside County Mountains; San Diego County Mountains

11. Heat Advisory for: San Bernardino and Riverside County Valleys-The Inland Empire

12. Heat Advisory for: San Bernardino County Mountains

13. Heat Advisory for: Santa Ynez Mountains Western Range

14. Heat Advisory for: South Central Siskiyou County

15. Heat Advisory for: Surprise Valley California; Lassen-Eastern Plumas-Eastern Sierra Counties; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake; Northern Washoe County

16. Heat Advisory for: West Side Mountains north of 198; Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley; Mariposa Madera Foothills; Fresno-Tulare Foothills; South End Sierra Foothills

17. Wind Advisory for: Santa Barbara County Southwestern Coast

18. Wind Advisory for: Santa Ynez Mountains Western Range

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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

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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 Fog?

Home - Education - Cloud Types - Fog

Fog Next Topic: Fractus Clouds

Fog is technically a type of stratus cloud, which lies along the ground and obscures visibility.

It is usually created when humidity in the air condenses into tiny water droplets. Because of this, some places are more prone to foggy weather, such as regions close to a body of water.

Fog is similar to mist; both are the appearance of water droplets suspended in the air, but fog is the term applied to the condition when visibility is less than 1 km.

Next Topic: Fractus Clouds

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