Weather Alert in California
Winter Weather Advisory issued February 17 at 8:20PM PST until February 18 at 4:00AM PST by NWS Las Vegas NV
AREAS AFFECTED: Owens Valley
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches around Bishop. Winds could gust as high as 40 mph. Accumulations of 2 to 4 inches possible along the US-395 corridor south of Bishop late tonight mainly above 4000 feet. * WHERE...Owens Valley. * WHEN...Until 4 AM PST Wednesday. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Periods of heavy snow will continue this evening before tapering off late tonight. Heaviest snow has been in the Bishop area but additional snow accumulations will spread south overnight.
INSTRUCTION: Slow down and use caution while traveling. Call 1-800-427-7623 for road information.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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