Weather Alert in California
Winter Storm Warning issued February 18 at 11:40AM PST until February 19 at 10:00PM PST by NWS Sacramento CA
AREAS AFFECTED: Shasta Lake Area / Northern Shasta County; Burney Basin / Eastern Shasta County; Northern Sacramento Valley; 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 with additional snow accumulations up to 1 foot between 1000 and 3000 feet, 2 to 3 feet above 3000 feet, and up to 4 feet at peaks. Light snowfall accumulations up to 2 inches below 1000 feet in Shasta and Tehama Counties. Winds gusting as high 45 to 55 mph. * WHERE...Portions of Northern California, now including elevations below 1000 ft in Shasta and Tehama Counties * WHEN...Until 10 PM PST Thursday. * IMPACTS...Dangerous to near impossible travel conditions with chain controls and road closures. Additional power outages from downed trees and power lines. Low visibility due to a combination of gusty wind and heavy snow. * ADDITIONAL DETAILS...Snow levels remain around 1500 to 2500 feet through Thursday in the Sierra Foothills with potential to see snow levels as low as 1000 feet. Snow levels potentially down to 300 feet along the southern Cascades, Shasta County, and Tehama County in the morning hours.
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 Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
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