Weather Alert in Idaho
Winter Weather Advisory issued February 16 at 2:01AM MST until February 17 at 5:00PM MST by NWS Pocatello ID
AREAS AFFECTED: Caribou Range; Big Hole Mountains; Centennial Mountains/Island Park
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 4 and 8 inches below 7500 feet with total snow accumulations between 8 and 12 inches above 7500 feet. Blowing and drifting snow with winds gusting as high as 40 mph. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, and Caribou Range. * WHEN...From 11 PM this evening to 5 PM MST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning and evening commutes.
INSTRUCTION: Slow down and use caution while traveling. Call 5 1 1 or visit 511.idaho.gov for the latest road conditions.
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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
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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