Weather Alert in California
Winter Storm Watch issued February 16 at 12:59PM PST until February 18 at 4:00AM PST by NWS Las Vegas NV
AREAS AFFECTED: Owens Valley
DESCRIPTION: * WHAT...Heavy snow possible. Total snow accumulations of 3 to 6 inches, mainly north of Lone Pine. Winds could gust as high as 40 mph. * WHERE...Owens Valley. * WHEN...From Tuesday morning through late Tuesday night. * IMPACTS...Slick and snow-covered roadways will quickly become dangerous with numerous slide-offs and spin-outs possible. * ADDITIONAL DETAILS...Snowfall is expected to develop by Tuesday afternoon with snow levels hovering near the valley floor. Cooler air will move in after dark with increasing snow intensity expected, which will worsen roadway conditions.
INSTRUCTION: Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order.
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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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