Weather Alert in California
Winter Storm Warning issued February 15 at 12:21AM PST until February 18 at 10:00PM PST by NWS Las Vegas NV
AREAS AFFECTED: White Mountains of Inyo County
DESCRIPTION: * WHAT...Heavy snow possible. Total snow accumulations exceeding 2 feet above 8000 feet....1 to 2 feet above 7000 feet....and 8 to 16 inches down to 6000 feet. Winds could gust as high as 50 mph. * WHERE...White and Inyo Mountains. * WHEN...From 4 AM Monday to 10 PM PST Wednesday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Travel on Highway 168 especially through Westgard Pass will be difficult to impossible at times. Snowfall rates will likely decrease for a period from late Monday night into Tuesday morning, only to increase once again by mid-day Tuesday.
INSTRUCTION: Persons are urged to stay indoors until conditions improve. If you must go outside, dress in layers. Several layers of clothes will keep you warmer than a single heavy coat. Cover exposed skin to reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a hat will keep you from losing your body heat. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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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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