555  
FLUS43 KFSD 180927  
HWOFSD  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
427 AM CDT TUE SEP 18 2018  
 
IAZ001>003-012>014-020>022-032-MNZ071-072-080-081-089-090-097-098-  
SDZ039-040-054>056-060>062-065>067-069>071-190930-  
LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE-  
BUENA VISTA-IDA-LINCOLN MN-LYON MN-MURRAY-COTTONWOOD-NOBLES-  
JACKSON-PIPESTONE-ROCK-KINGSBURY-BROOKINGS-MINER-LAKE-MOODY-  
HANSON-MCCOOK-MINNEHAHA-HUTCHINSON-TURNER-LINCOLN SD-YANKTON-  
CLAY SD-UNION-  
427 AM CDT TUE SEP 18 2018  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST IOWA,  
WEST CENTRAL IOWA, SOUTHWEST MINNESOTA, EAST CENTRAL SOUTH  
DAKOTA, AND SOUTHEAST SOUTH DAKOTA.  
   
DAY ONE
 
TODAY AND TONIGHT  
 
THUNDERSTORMS WILL BE POSSIBLE THROUGHOUT THE DAY, WITH A MARGINAL  
CHANCE FOR ISOLATED STRONG STORMS PRODUCING GUSTY WINDS AND HAIL  
TO THE SIZE OF QUARTERS.  
 
MULTIPLE ROUNDS OF SLOW MOVING THUNDERSTORMS THIS EVENING AND  
OVERNIGHT WILL LIKELY BRING 1-2 INCHES OF RAINFALL, WITH LOCALLY  
HIGHER AMOUNTS. HEAVY RAIN WITH FLASH FLOODING WILL BE POSSIBLE  
UNDER THE MOST PERSISTENT STORMS.  
   
DAYS TWO THROUGH SEVEN
 
WEDNESDAY THROUGH MONDAY  
 
WEDNESDAY INTO THURSDAY MORNING WILL BRING CONTINUED CHANCES FOR  
THUNDERSTORMS WITH HEAVY RAIN. WEDNESDAY EVENING CURRENTLY LOOKS  
LIKE THE PERIOD WITH THE HIGHEST THREAT FOR HEAVY RAIN. DRY  
WEATHER MOVES IN THURSDAY AFTERNOON THROUGH THE WEEKEND.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION IS NOT ANTICIPATED.  
 

 
 
IAZ031-NEZ013-014-SDZ038-050-052-053-057>059-063-064-068-190930-  
WOODBURY-DIXON-DAKOTA-BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-  
DAVISON-CHARLES MIX-DOUGLAS-BON HOMME-  
427 AM CDT TUE SEP 18 2018  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL  
IOWA, NORTHEAST NEBRASKA, CENTRAL SOUTH DAKOTA, EAST CENTRAL  
SOUTH DAKOTA, SOUTH CENTRAL SOUTH DAKOTA, AND SOUTHEAST SOUTH  
DAKOTA.  
   
DAY ONE
 
TODAY AND TONIGHT  
 
THUNDERSTORMS WILL BE POSSIBLE THROUGHOUT TODAY AND TONIGHT, WITH  
A MARGINAL CHANCE FOR ISOLATED STRONG STORMS PRODUCING GUSTY  
WINDS AND HAIL TO THE SIZE OF QUARTERS. HEAVY RAIN IS POSSIBLE  
UNDER THE STRONGEST STORMS.  
   
DAYS TWO THROUGH SEVEN
 
WEDNESDAY THROUGH MONDAY  
 
WEDNESDAY INTO THURSDAY MORNING WILL BRING CONTINUED CHANCES FOR  
THUNDERSTORMS WITH HEAVY RAIN. WEDNESDAY EVENING CURRENTLY LOOKS  
LIKE THE PERIOD WITH THE HIGHEST THREAT FOR HEAVY RAIN. DRY  
WEATHER MOVES IN THURSDAY AFTERNOON THROUGH THE WEEKEND.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION IS NOT ANTICIPATED.  
 

 
 
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