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Flood Warning — Johnson, IA; Louisa, IA

Structured official-source report · Published Sep 20, 12:14 PM UTC · Updated Sep 20, 3:02 PM UTC
SIGNIFICANT · active

Latest status

...The Flood Warning is extended for the following rivers in Iowa... Iowa River near Lone Tree affecting Louisa, Washington and Johnson Counties. * WHAT...Minor flooding is forecast. * WHERE...Iowa River near Lone Tree. * WHEN...Until Wednesday evening. * IMPACTS...At 18.0 feet, Sand Road closes south of 520th Street to the Highway 22 intersection. * ADDITIONAL DETAILS... - At 9:00 AM CDT Sunday the stage was 15.7 feet and rising. - Forecast...The river will rise above flood stage this afternoon to 16.8 feet this evening. It may fall briefly, but likely to rise again Monday night into Tuesday to 17.5 feet. It will then fall below flood stage Wednesday. - Flood stage is 16.0 feet. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. The next statement will be issued by Monday morning.

Where it happened

Johnson, IA; Louisa, IA; Washington, IA · 41.410°, -91.473°

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Latest reported details

official severity
Severe
urgency
Immediate
certainty
Observed
event
Flood Warning
areas
Johnson, IA; Louisa, IA; Washington, IA

Missing values are unconfirmed, not zero. Magnitude and alert classifications do not establish casualty totals.

What officials are saying

Read the original reports below for instructions and the latest authoritative assessment. StormScapes does not independently confirm damage or issue evacuation orders.

What happens next

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Incident timeline

Sep 20, 3:02 PM UTC · nws

...The Flood Warning is extended for the following rivers in Iowa... Iowa River near Lone Tree affecting Louisa, Washington and Johnson Counties. * WHAT...Minor flooding is forecast. * WHERE...Iowa River near Lone Tree. * WHEN...Until Wednesday evening. * IMPACTS...At 18.0 feet, Sand Road closes south of 520th Street to the Highway 22 intersection. * ADDITIONAL DETAILS... - At 9:00 AM CDT Sunday the stage was 15.7 feet and rising. - Forecast...The river will rise above flood stage this afternoon to 16.8 feet this evening. It may fall briefly, but likely to rise again Monday night into Tuesday to 17.5 feet. It will then fall below flood stage Wednesday. - Flood stage is 16.0 feet. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. The next statement will be issued by Monday morning.

Sep 20, 10:43 AM UTC · nws

...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Iowa... Iowa River near Lone Tree affecting Louisa, Washington and Johnson Counties. * WHAT...Minor flooding is forecast. * WHERE...Iowa River near Lone Tree. * WHEN...From this morning to Tuesday evening. * IMPACTS...At 18.0 feet, Sand Road closes south of 520th Street to the Highway 22 intersection. * ADDITIONAL DETAILS... - At 5:00 AM CDT Sunday the stage was 13.7 feet. - Forecast...The river is expected to rise above flood stage late this morning to a crest of 18.0 feet this evening. It will then fall below flood stage late Tuesday morning. - Flood stage is 16.0 feet. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/quadcities. The next statement will be issued by late tonight.

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