WGUS83 KDMX 200951

FLSDMX



Flood Statement

National Weather Service Des Moines IA

451 AM CDT Wed Aug 20 2025



...The Flood Warning is extended for the following rivers in Iowa...



  Cedar River at Cedar Falls affecting Black Hawk County.



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



  Winnebago River at Mason City affecting Worth, Cerro Gordo and 

  Floyd Counties.



  Shell Rock River at Shell Rock affecting Black Hawk, Bremer and 

  Butler Counties.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



For the latest stream observations and forecasts refer to 

weather.gov/desmoines/water.



Turn around, don't drown when encountering flooded roads. Most flood 

deaths occur in vehicles.



River forecasts include observed precipitation plus forecast 

precipitation over the next 24 hours.







&&



IAC013-210600-

/O.EXT.KDMX.FL.W.0020.250820T2316Z-250823T1434Z/

/CEDI4.1.ER.250820T2316Z.250822T0000Z.250823T0834Z.NO/

451 AM CDT Wed Aug 20 2025



...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO LATE SATURDAY 

MORNING...



* WHAT...Minor flooding is forecast.



* WHERE...The Cedar River at Cedar Falls, or from the West Fork 

  Cedar River to the Cedar Falls-Waterloo city limits.



* WHEN...From this evening to late Saturday morning.



* IMPACTS...At 91.0 feet, Water affects Big Woods Rd south of 

  Dunkerton Rd as well as the north parking lot of Island Park.



* ADDITIONAL DETAILS...

  - At 3:45 AM CDT Wednesday the stage was 86.7 feet.

  - Forecast...The river is expected to rise above flood stage

    this evening to a crest of 90.7 feet tomorrow evening. It

    will then fall below flood stage early Saturday morning.

  - Flood stage is 89.0 feet.





&&



LAT...LON 4256 9238 4249 9247 4258 9255 4262 9255

      4262 9241





$$



IAC013-017-023-210600-

/O.CON.KDMX.FL.W.0019.000000T0000Z-250822T1800Z/

/SHRI4.1.ER.250820T0130Z.250821T0000Z.250822T1200Z.NO/

451 AM CDT Wed Aug 20 2025



...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY FRIDAY AFTERNOON...



* WHAT...Minor flooding is occurring and minor flooding is forecast.



* WHERE...The Shell Rock River at Shell Rock, or from Flood Creek 

  near Clarksville to the Cedar River.



* WHEN...Until early Friday afternoon.



* IMPACTS...At 12.5 feet, Seepage occurs in several basements close 

  to the river.



* ADDITIONAL DETAILS...

  - At 3:45 AM CDT Wednesday the stage was 12.3 feet.

  - Forecast...The river is expected to rise to a crest of 12.6

    feet this evening. It will then fall below flood stage Friday

    morning.

  - Flood stage is 12.0 feet.





&&



LAT...LON 4261 9249 4265 9255 4282 9280 4286 9268

      4269 9249





$$



IAC033-067-195-210600-

/O.CON.KDMX.FL.W.0018.000000T0000Z-250821T0600Z/

/MCWI4.1.ER.250818T1739Z.250819T1030Z.250821T0000Z.NO/

451 AM CDT Wed Aug 20 2025



...FLOOD WARNING REMAINS IN EFFECT UNTIL JUST AFTER MIDNIGHT 

TONIGHT...



* WHAT...Minor flooding is occurring and minor flooding is forecast.



* WHERE...The Winnebago River at Mason City, or from Beaver Creek 

  near Fertile to the Shell Rock River near Rockford.



* WHEN...Until just after midnight tonight.



* IMPACTS...At 10.0 feet, Widespread flooding occurs at city parks. 

  Water reaches the underside of the 12th St NE bridge at the piers.



* ADDITIONAL DETAILS...

  - At 4:15 AM CDT Wednesday the stage was 10.5 feet.

  - Forecast...The river is expected to fall below flood stage

    this evening and continue falling.

  - Flood stage is 10.0 feet.





&&



LAT...LON 4331 9330 4308 9287 4300 9301 4326 9350





$$



Dodson