Weather Alert in Idaho
Winter Storm Warning issued February 16 at 1:31PM MST until February 19 at 5:00AM MST by NWS Pocatello ID
AREAS AFFECTED: Bear River Range
DESCRIPTION: * WHAT...Heavy snow expected. Total snow accumulations of 12 to 18 inches below 7000 feet and 20 to 30 inches above 7000 feet from tonight to early Thursday morning. Blowing and drifting snow with winds gusting as high as 55 mph tonight with frontal passage. * WHERE...Bear River Range. * WHEN...From 11 PM this evening to 5 AM MST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact morning and evening commutes.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 5 1 1 or visit 511.idaho.gov for the latest road conditions.
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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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