400 

WGUS73 KFSD 171008

FFSFSD



Flash Flood Statement

National Weather Service Sioux Falls SD

508 AM CDT Sun May 17 2026



IAC149-SDC127-171018-

/O.EXP.KFSD.FF.W.0001.000000T0000Z-260517T1015Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Plymouth IA-Union SD-

508 AM CDT Sun May 17 2026



...FLASH FLOOD WARNING WILL EXPIRE AT 515 AM CDT EARLY THIS MORNING 

FOR SOUTHWESTERN PLYMOUTH AND EAST CENTRAL UNION COUNTIES...



The heavy rain has ended. Flood waters are expected to recede this 

morning. Use extra caution if traveling before daybreak, as flood 

waters are harder to see in the dark. Please continue to heed 

remaining road closures. Turn around, don't drown.



&&



LAT...LON 4266 9666 4273 9671 4277 9636 4265 9634

      4263 9654



$$



SG