Weather Alert in California
Winter Storm Watch issued February 13 at 11:06AM PST until February 18 at 10:00PM PST by NWS Reno NV
AREAS AFFECTED: Lassen-Eastern Plumas-Eastern Sierra Counties
DESCRIPTION: * WHAT...Heavy snow. Snow accumulations 6 to 12 inches west of Highway 395, with local high elevation totals west of Highway 89 up to 2 feet. This includes locations such as Plumas Eureka, Graeagle, Portola, and Lake Davis. For valley locations along and east of Highway 395, 2 to 6 inches, including Susanville, Janesville, Standish, and Doyle. Wind gusts 35 to 45 mph with up to 65 mph for wind prone locations along US-395. * WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties. * WHEN...From Sunday evening through Wednesday evening. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning and evening commutes. * ADDITIONAL DETAILS...Elevations below 5000 feet will initially start as rain, changing to snow Monday afternoon into evening for all elevations.
INSTRUCTION: Monitor the latest forecasts for updates on this situation. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
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
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