Weather Alert in Illinois
Flood Warning issued April 3 at 12:14PM EDT by NWS Indianapolis IN
AREAS AFFECTED: Crawford, IL; Lawrence, IL; Knox, IN; Sullivan, IN
DESCRIPTION: ...The National Weather Service in Indianapolis IN has issued a Flood Warning for the following rivers in Indiana...Illinois... Wabash River at Riverton. .Multiple rounds of rainfall have brought lowland flooding to the Wabash River basin. The Wabash is expected to crest at Lafayette on Sunday, but the crest is not expected to reach the lower Wabash until the weekend of April 11th. The current river forecast includes expected rainfall amounts of 0.75 to 1.25 inches in the Wabash basin through Sunday morning, when dry weather is expected to move into the area. Variations from those expected amounts could change the crests as well as the amount of time spent in flood at any given location. * WHAT...Minor flooding is forecast. * WHERE...Wabash River at Riverton. * WHEN...From late tonight until further notice. * IMPACTS...At 18.5 feet, High water surrounds elevated river cabins. County roads to these cabins are impassable. Agricultural flooding is in progress. Seep water develops behind levees. * ADDITIONAL DETAILS... - At 11:00 AM EDT Friday /10:00 AM CDT Friday/ the stage was 11.7 feet. - Forecast...The river is expected to rise above flood stage late tonight and continue rising to a crest of 19.2 feet Friday, April 10. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov/ind. The next statement should be issued this evening by around 1130 PM EDT /1030 PM CDT/.
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Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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
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