Weather Alert in Iowa
Flood Watch issued July 30 at 11:14AM CDT until August 6 at 1:00PM CDT by NWS Quad Cities IA IL
AREAS AFFECTED: Des Moines; Lee; Henderson; Hancock
DESCRIPTION: ...The National Weather Service in Quad Cities IA IL has issued a Flood Watch for the following rivers in Illinois...Iowa... Mississippi River at Burlington affecting Henderson, Lee, Des Moines and Hancock Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. * WHAT...Flooding is possible. * WHERE...Mississippi River at Burlington. * WHEN...From late Friday night to Wednesday, August 06. * IMPACTS...At 16.0 feet, Water affects low lying buildings and homes in Montrose and Niota. * ADDITIONAL DETAILS... - At 10:00 AM CDT Wednesday the stage was 13.5 feet. - Forecast...Flood stage may be reached early Saturday morning. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: If you are in the watch area, remain alert to possible flooding. Residents and those with interests near the river should monitor rising water levels and be prepared for possible flood warnings. The next statement will be issued byThursday morning at 1115 AM CDT.
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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