Weather Alert in Iowa
Flood Warning issued August 2 at 3:06AM CDT until August 3 at 1:00AM CDT by NWS Des Moines IA
AREAS AFFECTED: Black Hawk, IA; Bremer, IA; Butler, IA
DESCRIPTION: ...The Flood Warning continues for the following rivers in Iowa... Iowa River near Tama Hwy E49 affecting Tama and Poweshiek Counties. Cedar River at Cedar Falls affecting Black Hawk County. Shell Rock River at Shell Rock affecting Bremer, Butler and Black Hawk Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...The Shell Rock River at Shell Rock, or from Flood Creek near Clarksville to the Cedar River. * WHEN...Until just after midnight tonight. * IMPACTS...At 12.5 feet, Seepage occurs in several basements close to the river. * ADDITIONAL DETAILS... - At 1:45 AM CDT Saturday the stage was 12.7 feet. - Forecast...The river is expected to fall below flood stage this evening and continue falling to 10.3 feet Friday evening. - Flood stage is 12.0 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 Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
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