Weather Alert in California
Winter Weather Advisory issued May 3 at 4:49PM PDT until May 4 at 11:00PM PDT by NWS Las Vegas NV
AREAS AFFECTED: Eastern Sierra Slopes of Inyo County
DESCRIPTION: * WHAT...Snow expected above 8000 feet. Total snow accumulations between 2 and 4 inches between 8000 and 9000 feet and 4 to 8 inches above 9000 feet. Winds gusting as high as 40 mph. * WHERE...Eastern Sierra Slopes. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...This late season winter storm will pose a significant risk to those hikers and outdoor recreationalists not prepared for winter conditions. The combination of low temperatures, gusty winds and accumulating snow will make for hazardous conditions. * ADDITIONAL DETAILS...Snow levels will vary between 8000 feet and 9000 feet.
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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