⚠️ Flood Warning – Cedar, IA; Iowa, IA; Johnson, IA; Keokuk, IA; Louisa, IA; Muscatine, IA; Washington, IA – Sunday, September 20, 2026

Flood Warning issued September 20 at 8:04AM CDT until September 20 at 2:00PM CDT by NWS Quad Cities IA IL

Details

* WHAT…Flooding caused by excessive rainfall is expected.

* WHERE…Southern Cedar County in east central Iowa…
Iowa County in east central Iowa…
Johnson County in east central Iowa…
Muscatine County in east central Iowa…
Keokuk County in southeastern Iowa…
Northwestern Louisa County in southeastern Iowa…
Washington County in southeastern Iowa…

* WHEN…Until 200 PM CDT.

* IMPACTS…Flooding of rivers, creeks, streams, and other low-lying
and flood-prone locations is imminent or occurring. Streams
continue to rise due to excess runoff from earlier rainfall.
Low-water crossings are inundated with water and may not be
passable. Expect many areas of slow moving or standing water. It
will take several hours for all the water from these storms to work
through local drainage systems in urban areas.

* ADDITIONAL DETAILS…
– At 801 AM CDT, Doppler radar and automated rain gauges indicated
heavy rain of 2 to 5 inches occurred since last evening. This
heavy rain falling on saturated ground has resulted in flooding
of low lying areas, streams, creeks, rivers and poorly drained
areas. The threat for heavy rain has ended, but runoff will delay
the fall of water levels and improvement in conditions.
– Some locations that will experience flooding include…
Iowa City, Muscatine, Washington, Tipton, Marengo, West Branch,
Sigourney, Columbus Junction, Durant, Coralville, North Liberty,
West Liberty, Williamsburg, Wilton, Kalona, Tiffin, Wellman, Lone
Tree and University Heights.
– This includes the following highways…
Interstate 80 in Iowa between mile markers 205 and 277.
Interstate 380 between mile markers 1 and 7.

Instructions

Turn around, don’t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.