Weather Alert in Arizona
Winter Storm Warning issued February 20 at 4:55AM MST until February 20 at 6:00AM MST by NWS Flagstaff AZ
AREAS AFFECTED: Western Mogollon Rim
DESCRIPTION: * WHAT...Heavy, blowing snow expected for the next hour. Additional snow accumulations up to one inch. Winds gusting as high as 45 mph. * WHERE...Western Mogollon Rim. * WHEN...Until 6 AM MST early this morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Even light snowfall amounts can create hazardous driving conditions due to slippery, snow-covered roads. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS... Forecast snowfall amounts from 4 AM MST Today to 6 AM MST Today... Doney Park: Trace to 1" Flagstaff: Trace to 1" Munds Park: Trace to 1" Williams: Trace to 1"
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest road conditions and closures go to az511.gov, or call 5 1 1. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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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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