Weather Alerts for California
1. High Wind Warning for: Eastern Sierra Slopes of Inyo County; Owens Valley; White Mountains of Inyo County; Death Valley National Park; Esmeralda and Central Nye County
2. Wind Advisory for: Coachella Valley
3. Wind Advisory for: Imperial County Southwest
4. Wind Advisory for: Morongo Basin
5. Wind Advisory for: Riverside County Mountains; San Diego County Mountains; San Diego County Deserts
6. Wind Advisory for: Salton Sea; Imperial County West; Imperial Valley
7. Wind Advisory for: San Bernardino County Mountains; Apple and Lucerne Valleys
8. Wind Advisory for: San Gorgonio Pass Near Banning
9. Wind Advisory for: Surprise Valley California; Northern Washoe County
10. Winter Weather Advisory for: Del Norte Interior; Northern Humboldt Interior; Southern Humboldt Interior; Northern Trinity; Southern Trinity; Northeastern Mendocino Interior
11. Winter Weather Advisory for: Greater Lake Tahoe Area; Mono; Greater Lake Tahoe Area
12. Winter Weather Advisory for: Kaiser to Rodgers Ridge; Kings Canyon NP; Grant Grove Area; Sequoia NP
13. Winter Weather Advisory for: Lassen-Eastern Plumas-Eastern Sierra Counties
14. Winter Weather Advisory for: Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
15. Winter Weather Advisory for: Western Siskiyou County
16. Winter Weather Advisory for: Yosemite NP outside of the valley; Upper San Joaquin River
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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 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
