Back to Home
Flash Flood Warning — Delaware County, IA, Dubuque County, IA, Jackson County, IA, Jones County, IA, Jo Daviess County, IL
Flash Flood Warning
Issued
5:12 AM CDT · Sun, Sep 20 2026
Expires
11:15 AM CDT · Sun, Sep 20 2026
Issuing Office
NWS KDVN

Affected Areas

Delaware County, IA Dubuque County, IA Jackson County, IA Jones County, IA Jo Daviess County, IL

Official Bulletin

268
WGUS53 KDVN 201012
FFWDVN
IAC055-061-097-105-ILC085-201615-
/O.NEW.KDVN.FF.W.0050.260920T1012Z-260920T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
512 AM CDT Sun Sep 20 2026

The National Weather Service in Quad Cities has issued a

* Flash Flood Warning for...
  Northwestern Jackson County in east central Iowa...
  Northern Jones County in east central Iowa...
  Eastern Delaware County in northeastern Iowa...
  Dubuque County in northeastern Iowa...
  Western Jo Daviess County in northwestern Illinois...

* Until 1115 AM CDT Sunday.

* At 512 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Between 1 and 2.5 inches of rain
  have fallen. Additional rainfall amounts of 0.5 to 1 inch are
  possible in the warned area. Flash flooding is ongoing or expected
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flash flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other poor
           drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Dubuque, Asbury, Dyersville, Monticello, Bellevue, Cascade,
  Epworth, East Dubuque, Farley, Peosta, Earlville, Hopkinton, New
  Vienna, Colesburg, Worthington, Holy Cross, La Motte, Luxemburg and
  Rickardsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&

LAT...LON 4264 9131 4264 9073 4257 9066 4251 9064
      4251 9060 4234 9044 4220 9036 4216 9088
      4217 9128

FLASH FLOOD...RADAR INDICATED

$$

McClure