Weather Alert in California
Winter Storm Watch issued February 13 at 10:17PM PST until February 15 at 9:00PM PST by NWS Medford OR
AREAS AFFECTED: Western Siskiyou County
DESCRIPTION: * WHAT...For the first Winter Storm Watch Above 5000 Feet, heavy snow possible late Sunday morning through Sunday evening. Total snow accumulations up to 6 inches possible. For the second Winter Storm Watch Above 3000 ft, heavy snow possible late Sunday night through late Tuesday night. Additional snow accumulations between 6 and 12 inches possible. Winds could gust as high as 35 mph over high and exposed terrain. * WHERE...Elevations above 3000 ft in western Siskiyou County. This includes Etna Summit on Sawyers Bar Rd and Highway 3 south of Callahan. * WHEN...For the first Winter Storm Watch, from Sunday morning through Sunday evening. For the second Winter Storm Watch, from Sunday evening through late Tuesday night. * IMPACTS...Travel may be very difficult to impossible. The hazardous conditions could impact the Monday morning and evening commutes. * ADDITIONAL DETAILS...Snow levels of 5000 feet on Sunday into Sunday evening are expected to lower to 4500 ft Sunday night then down to 4000 ft Monday. Snow levels lower further Monday night into Tuesday, possibly as low as 2000 ft by Tuesday morning. This could result in light snow accumulations of 1 to 3 inches in the Scott and Klamath River Valleys during Tuesday through Tuesday night.
INSTRUCTION: Monitor the latest forecasts for updates on this situation. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.
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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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