Weather Alert in Iowa
Flash Flood Warning issued July 11 at 10:49PM CDT until July 12 at 4:00AM CDT by NWS Quad Cities IA IL
AREAS AFFECTED: Benton, IA; Buchanan, IA; Delaware, IA; Linn, IA
DESCRIPTION: At 1049 PM CDT, emergency management reported that flood waters were beginning to recede across the warned area. With the threat for heavy rain ending a continued recession in flood waters is expected through late evening. However, be aware that some areas of ongoing high water and flash flooding may still be occurring across the warned area. If the improvement continues as expected the flash flood warning will likely be cancelled early. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Emergency management reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Cedar Rapids, Independence, Vinton, Manchester, Hiawatha, Robins, Belle Plaine, Center Point, Fairfax, Atkins, Walford, Urbana, Palo, Shellsburg, Newhall, Edgewood, Winthrop, Walker, Blairstown and Van Horne. This includes Interstate 380 between mile markers 26 and 50.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
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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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