Weather Alert in California
Winter Weather Advisory issued February 18 at 2:50AM PST until February 19 at 10:00PM PST by NWS San Diego CA
AREAS AFFECTED: San Diego County Mountains
DESCRIPTION: * WHAT...Wet snow. Additional snow accumulations 3 to 6 inches expected through today for elevations below 5500 feet. Strong winds are expected with peak gusts 50 to 60 mph, locally to 75 mph Wednesday. An additional 1 to 3 inches of snow is possible on Thursday along with strong winds. * WHERE...San Diego County Mountains. * WHEN...Until 10 PM PST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Wednesday morning and evening commutes. Very strong winds could cause extensive tree damage.
INSTRUCTION: Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
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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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