Weather Alert in Wisconsin
Flood Warning issued August 20 at 8:18PM CDT until August 21 at 7:00PM CDT by NWS La Crosse WI
AREAS AFFECTED: Buffalo, WI; Trempealeau, WI
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Wisconsin... Trempealeau River at Dodge affecting Trempealeau and Buffalo Counties. ...The Flood Warning continues for the following rivers in Iowa... Turkey River at Elkader affecting Clayton County. ...The Flood Warning is cancelled for the following rivers in Iowa... Cedar River at Charles City affecting Floyd County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Trempealeau River at Dodge. * WHEN...Until tomorrow evening. * IMPACTS...At 11.0 feet, The railroad bridge about three quarters of a mile upstream from the gage can restrict the flow. * ADDITIONAL DETAILS... - At 7:00 PM CDT Wednesday the stage was 10.8 feet. - Bankfull stage is 7.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:00 PM CDT Wednesday was 10.9 feet. - Forecast...The river is expected to fall below flood stage tomorrow morning and continue falling to 8.0 feet Wednesday, August 27. - Flood stage is 10.5 feet. - Flood History...This crest compares to a previous crest of 10.8 feet on 09/24/1986. - http://www.weather.gov/safety/flood
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional river and weather information is available at www.weather.gov/lacrosse. The next statement will be issued this evening by 930 PM 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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