Weather Alert in California
Winter Storm Watch issued February 15 at 9:07AM PST until February 19 at 9:00AM PST by NWS Los Angeles/Oxnard CA
AREAS AFFECTED: Western San Gabriel Mountains and Highway 14 Corridor; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills
DESCRIPTION: * WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 inches for 3500 to 4500 feet elevation, and 4 to 8 inches above 4500 feet elevation. Winds could gust as high as 50 mph. * WHERE...Eastern Antelope Valley Foothills, Western Antelope Valley Foothills, and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...From Tuesday evening through Thursday morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. Very strong winds could cause extensive tree damage.
INSTRUCTION: Monitor the latest forecasts for updates on this situation.
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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