Weather Alert in California
Winter Weather Advisory issued April 1 at 12:12AM PDT until April 2 at 11:00AM PDT by NWS Medford OR
AREAS AFFECTED: Western Siskiyou County
DESCRIPTION: * WHAT...Snow expected above 4000 feet. Total snow accumulations 4 to 8 inches, except up to 14 inches above 5000 feet. Winds gusting as high as 40 mph over high and exposed terrain. * WHERE...Western Siskiyou County above 4000 feet. This also includes Etna Summit on Sawyers Bar Rd at 5950 ft. * WHEN...From 8 PM Wednesday to 11 AM PDT Thursday. * IMPACTS...Travel may be difficult. The hazardous conditions could impact the Thursday morning commute. Gusty winds could bring down tree branches. Gusty winds combined with snow may cause limited visibility. Use extra care if traveling through remote or isolated areas.
INSTRUCTION: Slow down and use caution while traveling. Call 511 or visit quickmap.dot.ca.gov for road information.
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North America Water Vapor (Moisture)
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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
Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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