Iowa, Illinois Severe Flood Watch | Effective 09/18/2026 23:45

Headline: 
Flood Watch issued September 19 at 1:45AM CDT until September 20 at 7:00AM CDT by NWS Quad Cities IA IL
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 18, 2026 - 11:45pm
Expires: 
September 20, 2026 - 12:00am
Description: 
* WHAT...Flooding and flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest Illinois, including the following county, Rock Island and east central Iowa, including the following counties, Cedar, Linn, Muscatine and Scott. * WHEN...Through Sunday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Rounds of showers and storms are expected through tonight. These storms will be capable of rainfall rates between 1 to 2 inches per hour. Rainfall totals of 1 to 3 inches are likely in the hardest hit areas through early Sunday morning with the potential for localized areas of 3+ inches.
Instruction: 
You should monitor later forecasts and be alert for possible Flash Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Area Description: 
Linn; Cedar; Muscatine; Scott; Rock Island
Forcast Office: 
NWS Quad Cities IA IL
Sender: 
w-nws.webmaster@noaa.gov