Weather Alert in Illinois
Flood Warning issued April 3 at 9:46PM CDT until April 6 at 9:00PM CDT by NWS Chicago IL
AREAS AFFECTED: La Salle, IL
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Illinois... Fox River at Dayton affecting La Salle County. For the Fox River (Illinois)...including Dayton...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Millington downstream to confluence with the Illinois River, including the Dayton gauge. * WHEN...Until late Monday evening. * IMPACTS...At 13.0 feet, Residential structures threatened along 2062nd Road in Wedron. Water overflows low-lying banks in Dayton and Ottawa. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 12.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Friday was 12.4 feet. - Forecast...The river is expected to rise to a crest of 13.2 feet Sunday morning. It will then fall below flood stage Monday afternoon. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Saturday afternoon.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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
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