Weather Alerts for California

Recent Locations: Stevenson Ranch, CA

1. Fire Weather Watch for: Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft; Central Sacramento Valley including Glenn/Colusa/Yuba/Northern Sutter/Butte County Below 1000 Ft; Southern Sacramento Valley In Yolo/Sacramento/Far Western Placer/Southern Sutter and Solano County Below 1000 Ft - Excludes the Delta; Eastern Delta; Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft - Excludes the Delta; Southern Motherlode From 1000 to 3000 Ft/Calaveras and Toulumne Counties; Southeast Edge Shasta/Trinity NF and Western Portions of Tehama/Glenn RU; Northern Sierra Foothills from 1000 to 3000 Ft. Includes Nevada-Yuba-Placer RU and Anador-Eldorado RU; Eastern Mendocino NF

2. High Wind Warning for: Mojave Desert Slopes

3. High Wind Watch for: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range

4. Red Flag Warning for: Indian Wells Valley

5. Red Flag Warning for: Kern County Desert

6. Red Flag Warning for: Southern Mono County; Eastern Lassen County; Northern Sierra Front - Carson City/Douglas/Storey/Southern Washoe/Eastern Lyon/Far Southern Lassen Counties; Southern Sierra Front - Alpine/Northern Mono/Southern Lyon/Western Mineral Counties; West Humboldt Basin - Pershing County; Lahontan Basin - Churchill and Eastern Mineral Counties; Northern Washoe County

7. Wind Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area

8. Wind Advisory for: Indian Wells Valley; Mojave Desert

9. Wind Advisory for: Interstate 5 Corridor

10. Wind Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties; Northern Washoe County

11. Wind Advisory for: Mono; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area; Western Nevada Basin and Range including Pyramid Lake

12. Wind Advisory for: San Gorgonio Pass Near Banning

13. Wind Advisory for: San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast

14. Wind Advisory for: Santa Barbara County Southeastern Coast; Santa Ynez Mountains Eastern Range

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

16. Wind Advisory for: Santa Lucia Mountains; Southern Salinas Valley

17. Wind Advisory for: Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley

18. Wind Advisory for: Western Mojave Desert

19. 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--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 Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation

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