Weather Alert in California
Winter Storm Warning issued February 17 at 1:14PM 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 an inch below 1000 feet in Shasta County. Winds gusting as high 45 to 55 mph. * WHERE...West Slope Northern Sierra Nevada and adjacent foothills, Western Plumas County/Lassen Park, Shasta County, including the city of Redding, and the Coastal Range. * WHEN...Until 10 PM PST Thursday. * IMPACTS...Dangerous to near impossible travel conditions with chain controls and road closures. Low visibility due to a combination of gusty wind and heavy snow. * ADDITIONAL DETAILS...Snow levels remain around 1500 to 2500 feet through Thursday. Potential to see snow levels as low as 1000 feet along the Sierra and below 1000 feet along the southern Cascades and Shasta County in the morning hours. A brief lull in activity is expected during the day on Wednesday.
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 is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
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