Weather Alert in Iowa
Flood Watch issued August 24 at 9:01AM CDT until August 30 at 5:00AM CDT by NWS Quad Cities IA IL
AREAS AFFECTED: Clinton; Scott
DESCRIPTION: ...The National Weather Service in Quad Cities IA IL has issued a Flood Watch for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Clinton and Scott Counties. * WHAT...Flooding is possible. * WHERE...Wapsipinicon River near De Witt 4S. * WHEN...From Wednesday afternoon to early Saturday morning. * IMPACTS...At 11.5 feet, Moderate Flood Stage. Water affects homes along old U.S. Highway 61. * ADDITIONAL DETAILS... - At 8:30 AM CDT Sunday the stage was 9.3 feet. - Forecast...Flood stage may be reached Wednesday afternoon. - Flood stage is 11.0 feet.
INSTRUCTION: If you are in the watch area, remain alert to possible flooding. The next statement will be issued by Monday morning at 915 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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