Weather Alert in Illinois
Flood Warning issued July 16 at 11:52AM CDT until July 20 at 7:00AM CDT by NWS St Louis MO
AREAS AFFECTED: Pike, IL; Pike, MO
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Louisiana. Mississippi River at Clarksville. ...The Flood Warning is cancelled for the following rivers in Missouri...Illinois... Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Louisiana. * WHEN...Until Sunday morning. * IMPACTS...At 15.0 feet, The first quarter mile of Edison Avenue beyond the railroad tracks begins flooding near this height. * ADDITIONAL DETAILS... - At 11:30 AM CDT Wednesday the stage was 15.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:30 AM CDT Wednesday was 15.7 feet. - Forecast...The river is expected to fall below flood stage early Saturday morning and continue falling to 13.0 feet Wednesday, July 23. - Flood stage is 15.0 feet.
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
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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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