832  
FLUS43 KFSD 170918  
HWOFSD  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
418 AM CDT TUE SEP 17 2019  
 
IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-  
098-NEZ013-014-SDZ038>040-050-052>071-180930-  
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-  
BUENA VISTA-WOODBURY-IDA-LINCOLN-MURRAY-COTTONWOOD-NOBLES-JACKSON-  
PIPESTONE-ROCK-DIXON-DAKOTA-BEADLE-KINGSBURY-BROOKINGS-GREGORY-  
JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-MCCOOK-  
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-BON HOMME-YANKTON-  
UNION-  
418 AM CDT TUE SEP 17 2019  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST IOWA, WEST CENTRAL  
IOWA, SOUTHWEST MINNESOTA, NORTHEAST NEBRASKA, CENTRAL SOUTH  
DAKOTA, EAST CENTRAL SOUTH DAKOTA, SOUTH CENTRAL SOUTH DAKOTA AND  
SOUTHEAST SOUTH DAKOTA.  
   
DAY ONE
 
TODAY AND TONIGHT.  
 
FLOODING RESULTING FROM HEAVY RAINFALL LAST WEEK WILL CONTINUE TO BE  
AN ONGOING CONCERN. MODERATE TO MAJOR RIVER FLOODING IS EXPECTED TO  
CONTINUE IN THE JAMES, VERMILLION AND BIG SIOUX RIVERS FOR SEVERAL  
DAYS.  
 
SCATTERED TO NUMEROUS STORMS ARE EXPECTED TONIGHT INTO EARLY  
WEDNESDAY, ESPECIALLY IN AREAS EAST OF INTERSTATE 29. THE RISK OF  
SEVERE WEATHER IS LOW, HOWEVER, AN ISOLATED STORM MAY BECOME STRONG  
ENOUGH TO PRODUCE LARGE HAIL OR WIND GUSTS IN EXCESS OF 50 MPH.  
LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE.  
   
DAYS TWO THROUGH SEVEN
 
WEDNESDAY THROUGH MONDAY.  
 
ADDITIONAL STORMS ARE POSSIBLE WEDNESDAY NIGHT, AND AGAIN FRIDAY  
INTO EARLY SATURDAY. THESE STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL,  
WHICH COULD EXACERBATE ONGOING FLOODING. ISOLATED STORMS FRIDAY  
AFTERNOON AND EVENING MAY ALSO BECOME STRONG TO SEVERE, THOUGH THE  
FAVORED AREA AND EXTENT OF THE SEVERE WEATHER RISK IS STILL  
UNCERTAIN.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.  
 

 
 
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