Weather Alert in Iowa
Winter Storm Watch issued March 14 at 3:06AM CDT until March 16 at 10:00AM CDT by NWS Des Moines IA
AREAS AFFECTED: Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo
DESCRIPTION: ...POTENTIAL WINTER STORM PRODUCING BLIZZARD CONDITIONS LATE SATURDAY NIGHT THROUGH SUNDAY NIGHT... .A potentially significant winter storm will impact parts of the Upper Midwest this weekend, mainly from late Saturday night through Sunday night, with lingering impacts from blowing snow lasting into Monday morning. A swath of heavy snowfall and strong winds may result in blizzard conditions and significant impacts, especially on Sunday. A brief period of freezing rain is possible Sunday morning prior to switching over to snow. There is still some uncertainty in how far south into Iowa the heaviest snowfall may occur, but the most likely areas to see the higher snowfall amounts are over northern Iowa, though blizzard conditions are possible with lesser snow extending down into south central Iowa. * WHAT...Mixed precipitation followed by blizzard conditions possible. Total snow accumulations between 4 and 7 inches and ice accumulations around a light glaze possible. Winds could gust as high as 60 mph. * WHERE...Portions of north central and northwest Iowa. * WHEN...From late tonight through Monday morning. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning commute. Strong winds could cause tree damage.
INSTRUCTION: Prepare for possible blizzard conditions. Continue to monitor the latest forecasts for updates on this situation.
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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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