Weather Alert in California
Winter Storm Warning issued February 14 at 10:44AM PST until February 18 at 10:00PM PST by NWS Sacramento CA
AREAS AFFECTED: Shasta Lake Area / Northern Shasta County; Burney Basin / Eastern Shasta County; Mountains Southwestern Shasta County to Western Colusa County; Northeast Foothills/Sacramento Valley; Motherlode; Western Plumas County/Lassen Park; West Slope Northern Sierra Nevada
DESCRIPTION: * WHAT...Heavy snow Expected. Accumulation amounts range from up to 1 foot around 2000 to 2500 feet, 1 to 2 feet at 2500 to 3500 feet and 4 to 8 feet at higher elevations. Wind gusts of 45 to 55mph expected. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park including Interstate 80 and Highway 50, northern Shasta County including portions of Interstate 5, the Coastal Range, and foothill regions of the Sierra Nevada. * WHEN...From 10 PM Sunday to 10 PM PST Wednesday. * IMPACTS...Dangerous to near impossible travel conditions with chain controls and road closures. Low visibility due to a combination of wind and heavy snow. * ADDITIONAL DETAILS...Snow levels will be around 4500-5500 feet Sunday night through Monday. 2500 to 3500 feet snow levels by Monday night and 1500 to 2500 feet Tuesday into Wednesday. Potential to see snow levels as low as 1000 feet for areas along the Coastal Range, around Shasta County, and in the southern Cascades.
INSTRUCTION: Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.
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Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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