Weather Alert in Iowa
Flood Warning issued August 1 at 8:09PM CDT until August 4 at 1:00AM CDT by NWS Des Moines IA
AREAS AFFECTED: Black Hawk, IA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Iowa... Iowa River near Tama Hwy E49 affecting Poweshiek and Tama Counties. Cedar River at Cedar Falls affecting Black Hawk County. Shell Rock River at Shell Rock affecting Black Hawk, Butler and Bremer Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...The Cedar River at Cedar Falls, or from the West Fork Cedar River to the Cedar Falls-Waterloo city limits. * WHEN...Until early Monday morning. * IMPACTS...At 91.0 feet, Water affects Big Woods Rd south of Dunkerton Rd as well as the north parking lot of Island Park. * ADDITIONAL DETAILS... - At 6:45 PM CDT Friday the stage was 90.8 feet. - Forecast...The river is expected to fall below flood stage Sunday evening and continue falling to 83.9 feet Friday, August 08. - Flood stage is 89.0 feet.
INSTRUCTION: For the latest waterway observations and forecasts refer to weather.gov/desmoines/water. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. River forecasts include observed precipitation plus forecast precipitation over the next 24 hours.
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Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
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
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