Weather Alerts for California
1. Beach Hazards Statement for: Ventura County Beaches
2. Freeze Warning for: Western Siskiyou County; Central Siskiyou County; Eastern Curry County and Josephine County; Jackson County
3. Frost Advisory for: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior; Northern Trinity; Southern Trinity; Northwestern Mendocino Interior; Northeastern Mendocino Interior
4. Frost Advisory for: Northern Lake County
5. High Surf Advisory for: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches
6. High Wind Warning for: Mojave Desert Slopes
7. Lake Wind Advisory for: Greater Lake Tahoe Area; Greater Lake Tahoe Area
8. Wind Advisory for: Antelope Valley
9. Wind Advisory for: Interstate 5 Corridor; Western Antelope Valley Foothills
10. Wind Advisory for: North Bay Interior Mountains; North Bay Interior Valleys
11. Wind Advisory for: Northeast Foothills/Sacramento Valley; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
12. Wind Advisory for: Northern Lake County
13. Wind Advisory for: Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley; Carquinez Strait and Delta; Mountains Southwestern Shasta County to Western Colusa County
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 Clarita Valley; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains
17. Wind Advisory for: Southern Lake County
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
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 Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds