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Flood Warning — Johnson County, IA, Louisa County, IA, Washington County, IA
Flood Warning
Issued
Expires
10:12 AM CDT · Wed, Sep 23 2026
Issuing Office
NWS KDVN

Affected Areas

Johnson County, IA Louisa County, IA Washington County, IA

Official Bulletin

031
WGUS83 KDVN 211444
FLSDVN

Flood Statement
National Weather Service Quad Cities IA IL
944 AM CDT Mon Sep 21 2026

...The Flood Warning continues for the following rivers in Iowa...

  Iowa River near Lone Tree affecting Washington, Johnson and Louisa
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Caution is urged when walking near riverbanks.

The next statement will be issued by Tuesday morning.

&&

IAC103-115-183-221445-
/O.EXT.KDVN.FL.W.0069.000000T0000Z-260923T1512Z/
/LNTI4.1.ER.260920T1537Z.260922T1200Z.260923T0712Z.NO/
944 AM CDT Mon Sep 21 2026

...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Iowa River near Lone Tree.

* WHEN...Until Wednesday morning.

* IMPACTS...At 16.0 feet, Flood waters affect parts of Lola Lane and
  Y Avenue. River Junction Access Park is closed.

* ADDITIONAL DETAILS...
  - At 9:00 AM CDT Monday the stage was 15.9 feet.
  - Forecast...The river is expected to rise above flood stage late
    this afternoon to a crest of 16.8 feet tomorrow morning. It will
    then fall below flood stage early Wednesday morning.
  - Flood stage is 16.0 feet.

&&

LAT...LON 4140 9151 4148 9155 4149 9147 4136 9138
      4133 9142

$$

Ervin