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Areal Flood Warning — Cedar County, IA, Iowa County, IA, Johnson County, IA, Keokuk County, IA, Louisa County, IA, Muscatine County, IA, Washington County, IA
Areal Flood Warning
Issued
Expires
2:00 PM CDT · dim., sept. 20 2026
Issuing Office
NWS KDVN

Affected Areas

Cedar County, IA Iowa County, IA Johnson County, IA Keokuk County, IA Louisa County, IA Muscatine County, IA Washington County, IA

Official Bulletin

486
WGUS83 KDVN 201306
FLSDVN

Flood Statement
National Weather Service Quad Cities IA IL
806 AM CDT Sun Sep 20 2026

IAC031-095-103-107-115-139-183-201900-
/O.CON.KDVN.FA.W.0003.000000T0000Z-260920T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cedar IA-Iowa IA-Johnson IA-Keokuk IA-Louisa IA-Muscatine IA-
Washington IA-806 AM CDT Sun Sep 20 2026

...FLOOD WARNING REMAINS IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON...

* WHAT...Flooding caused by excessive rainfall continues.

* 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 804 AM CDT, Doppler radar and automated rain gauges indicated
    heavy rain of 2 to 5 inches occurred since last evening across
    the area. 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4165 9230 4180 9230 4179 9090 4171 9090
      4160 9091 4142 9105 4127 9110 4121 9241
      4151 9241 4151 9230

$$

McClure