Weather Alert in Illinois
Flood Warning issued April 4 at 11:38AM CDT until April 7 at 1:00AM CDT by NWS Chicago IL
AREAS AFFECTED: La Salle, IL
DESCRIPTION: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Ottawa affecting La Salle County. Illinois River at La Salle affecting La Salle, Bureau and Putnam Counties. For the Illinois River (Upper)...including Ottawa, La Salle...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Illinois River from Heritage Harbor east of Ottawa downstream to Starved Rock Lock and Dam, including the Ottawa gauge. * WHEN...Until early Tuesday morning. * IMPACTS...At 464.0 feet, Backwater causes the Fox River to reach bankfull near St. Elizabeth Medical Center in Ottawa. * ADDITIONAL DETAILS... - At 10:30 AM CDT Saturday the stage was 463.0 feet. - Forecast...The river is expected to rise to a crest of 464.5 feet early tomorrow afternoon. It will then fall below flood stage Monday evening. - Flood stage is 463.0 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 late tonight.
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Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
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