619  
WGUS83 KDMX 201717  
FLSDMX  
 
FLOOD STATEMENT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1217 PM CDT WED AUG 20 2025  
 
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN IOWA...  
 
CEDAR RIVER AT CEDAR FALLS AFFECTING BLACK HAWK COUNTY.  
 
WINNEBAGO RIVER AT MASON CITY AFFECTING CERRO GORDO, FLOYD AND  
WORTH COUNTIES.  
 
SHELL ROCK RIVER AT SHELL ROCK AFFECTING BUTLER, BREMER AND BLACK  
HAWK 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.  
 
 
 
IAC013-211330-  
/O.EXT.KDMX.FL.W.0020.250821T0000Z-250823T0500Z/  
/CEDI4.1.ER.250821T0000Z.250821T1800Z.250822T2300Z.NO/  
1217 PM CDT WED AUG 20 2025  
 
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO EARLY 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 EARLY SATURDAY MORNING.  
 
* IMPACTS...AT 90.3 FEET, WATER AFFECTS RIVERSIDE DR SOUTH OF BEECH  
ST.  
 
* ADDITIONAL DETAILS...  
- AT 11:45 AM CDT WEDNESDAY THE STAGE WAS 87.8 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO RISE ABOVE FLOOD STAGE  
THIS EVENING TO A CREST OF 90.2 FEET EARLY TOMORROW  
AFTERNOON. IT WILL THEN FALL BELOW FLOOD STAGE FRIDAY  
EVENING.  
- FLOOD STAGE IS 89.0 FEET.  
 
 
 
LAT...LON 4256 9238 4249 9247 4258 9255 4262 9255  
4262 9241  
 
 
 
IAC013-017-023-211330-  
/O.CON.KDMX.FL.W.0019.000000T0000Z-250822T1800Z/  
/SHRI4.1.ER.250820T0130Z.250821T0000Z.250822T1200Z.NO/  
1217 PM 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 11:45 AM CDT WEDNESDAY THE STAGE WAS 12.5 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/  
1217 PM 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 11:45 AM CDT WEDNESDAY THE STAGE WAS 10.1 FEET.  
- FORECAST...THE RIVER IS EXPECTED TO FALL BELOW FLOOD STAGE  
THIS EVENING AND CONTINUE FALLING TO 7.3 FEET WEDNESDAY,  
AUGUST 27.  
- FLOOD STAGE IS 10.0 FEET.  
 
 
 
LAT...LON 4331 9330 4308 9287 4300 9301 4326 9350  
 
 
 
JIMENEZ  
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