Weather Alert in California
Lake Wind Advisory issued July 20 at 1:46AM PDT until July 21 at 11:00PM PDT by NWS Reno NV
AREAS AFFECTED: Lassen-Eastern Plumas-Eastern Sierra Counties; Mineral and Southern Lyon Counties; Greater Reno-Carson City-Minden Area
DESCRIPTION: * WHAT...Southwest winds 15 to 20 mph with gusts up to 35 mph. * WHERE...In California, Lassen-Eastern Plumas-Eastern Sierra Counties. In Nevada, Greater Reno-Carson City-Minden Area and Mineral and Southern Lyon Counties. * WHEN...From 11 AM to 11 PM PDT Monday. * IMPACTS...Small boats, kayaks and paddle boards will be prone to capsizing and should remain off lake waters until conditions improve.
INSTRUCTION: Check lake conditions before heading out and be prepared for a sudden increase in winds and wave heights. Consider postponing boating activities on the lake until a day with less wind.
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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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