Weather Alert in Iowa
Flood Watch issued July 30 at 2:51PM CDT until August 2 at 7:00PM CDT by NWS Des Moines IA
AREAS AFFECTED: Dallas
DESCRIPTION: ...The Flood Watch is extended for the following rivers in Iowa... Des Moines River at Fort Dodge affecting Humboldt, Hamilton and Webster Counties. ...The Flood Watch continues for the following rivers in Iowa... North Raccoon River near Perry affecting Dallas County. * WHAT...Flooding is possible. * WHERE...The North Raccoon River near Perry, or from the Greene-Dallas County line to the South Raccoon River. * WHEN...From Friday morning to Saturday evening. * IMPACTS...At 15.0 feet, Water affects the wastewater treatment facility as well as agricultural land in the Perry area. Near Adel...water affects the fairgrounds and golf course. Northwest of Adel...water affects Sportsman Club Rd and Midland Trl. * ADDITIONAL DETAILS... - At 2:15 PM CDT Wednesday the stage was 12.3 feet. - Forecast...Flood stage may be reached Friday morning. - Flood stage is 15.0 feet.
INSTRUCTION: For the latest waterway observations and forecasts refer to weather.gov/desmoines/water. River forecasts include observed precipitation plus forecast precipitation over the next 24 hours.
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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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