Weather Alert in Iowa
Flood Warning issued July 31 at 9:39AM CDT by NWS Quad Cities IA IL
AREAS AFFECTED: Benton, IA; Iowa, IA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Iowa... Cedar River at Cedar Rapids affecting Linn County. English River at Kalona affecting Johnson and Washington Counties. Cedar River near Conesville affecting Muscatine and Louisa Counties. Iowa River at Oakville affecting Louisa County. Iowa River at Wapello affecting Louisa County. Iowa River at Marengo affecting Benton and Iowa Counties. ...The Flood Warning is cancelled for the following rivers in Iowa... Iowa River near Lone Tree affecting Johnson, Louisa and Washington Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, Moderate Flood Stage. Extensive inundation of agricultural land. * ADDITIONAL DETAILS... - At 9:00 AM CDT Thursday the stage was 17.4 feet. - Forecast...The river will fall to 16.9 feet just after midnight tonight. It will then rise to 17.0 feet early tomorrow afternoon. It will fall to 16.8 feet early Saturday afternoon. It will then rise to 17.6 feet early Wednesday morning. It will fall again but remain above flood stage. - Flood stage is 15.0 feet.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/quadcities. The next statement will be issued bythis morning at 1045 AM CDT.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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