330  
WGUS63 KDMX 190349  
FFADMX  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
FLOOD WATCH  
NATIONAL WEATHER SERVICE DES MOINES IA  
1049 PM CDT WED SEP 18 2019  
   
..FLASH FLOOD POTENTIAL TONIGHT OVER PORTIONS OF CENTRAL IOWA
 
 
.THUNDERSTORMS ARE FORECAST TO DEVELOP OVERNIGHT WITH TRAINING OF  
STORMS EXPECTED IN PORTIONS OF IOWA. THE TRAINING MAY LEAD TO  
EXCESSIVE RAINFALL IN SOME AREAS WITH FLASH FLOODING A  
POSSIBILITY. THE THREAT WILL PERSIST INTO THURSDAY MORNING AS THE  
STORMS SINK GRADUALLY SOUTHWARD THROUGH THE STATE.  
 
IAZ005>007-015-023-191200-  
/O.EXA.KDMX.FF.A.0013.000000T0000Z-190919T1800Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-POCAHONTAS-  
INCLUDING THE CITIES OF ALGONA, FOREST CITY, LAKE MILLS,  
NORTHWOOD, MANLY, EMMETSBURG, POCAHONTAS, LAURENS, ROLFE, FONDA,  
AND GILMORE CITY  
1049 PM CDT WED SEP 18 2019  
   
..FLASH FLOOD WATCH IN EFFECT THROUGH THURSDAY AFTERNOON
 
 
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS EXPANDED THE  
 
* FLASH FLOOD WATCH TO INCLUDE PORTIONS OF NORTH CENTRAL IOWA  
AND NORTHWEST IOWA, INCLUDING THE FOLLOWING AREAS, IN NORTH  
CENTRAL IOWA, KOSSUTH, WINNEBAGO, AND WORTH. IN NORTHWEST  
IOWA, PALO ALTO AND POCAHONTAS.  
 
* THROUGH THURSDAY AFTERNOON  
 
* AMPLE MOISTURE WILL FUEL THUNDERSTORMS TONIGHT INTO THURSDAY  
MORNING. THESE STORMS WILL LIKELY TRAIN OVER THE SAME AREAS  
WITH RAINFALL RATES OF OVER 2 INCHES PER HOUR AT TIMES.  
 
* THIS RAINFALL MAY LEAD TO FLASH FLOODING, QUICK RISES ON  
SMALLER STREAMS, AND FLOODING OF LOW LYING AND POOR DRAINAGE  
AREAS. THIS WILL LIKELY BE MOST PROBLEMATIC IN URBAN AREAS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD  
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 

 
 

 
 
IAZ016-017-024>028-033>039-044>049-057>060-070>073-081-191200-  
/O.CON.KDMX.FF.A.0013.000000T0000Z-190919T1800Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
HANCOCK-CERRO GORDO-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-  
CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-  
CARROLL-GREENE-BOONE-STORY-MARSHALL-AUDUBON-GUTHRIE-DALLAS-POLK-  
CASS-ADAIR-MADISON-WARREN-ADAMS-  
INCLUDING THE CITIES OF GARNER, BRITT, KANAWHA, MASON CITY,  
CLEAR LAKE, HUMBOLDT, EAGLE GROVE, CLARION, BELMOND, HAMPTON,  
PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON, ALLISON,  
DUMONT, WAVERLY, SAC CITY, LAKE VIEW, ODEBOLT, WALL LAKE,  
SCHALLER, EARLY, ROCKWELL CITY, MANSON, LAKE CITY, POMEROY,  
FORT DODGE, WEBSTER CITY, IOWA FALLS, ELDORA, ACKLEY,  
GRUNDY CENTER, REINBECK, CONRAD, DIKE, WELLSBURG, WATERLOO,  
CEDAR FALLS, DENISON, CARROLL, JEFFERSON, BOONE, AMES,  
MARSHALLTOWN, AUDUBON, EXIRA, GUTHRIE CENTER, PANORA, BAYARD,  
CASEY, PERRY, WAUKEE, ADEL, DES MOINES, ATLANTIC, GREENFIELD,  
STUART, ADAIR, FONTANELLE, WINTERSET, EARLHAM, INDIANOLA,  
NORWALK, CARLISLE, AND CORNING  
1049 PM CDT WED SEP 18 2019  
 
...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY  
AFTERNOON...  
 
THE FLASH FLOOD WATCH CONTINUES FOR  
 
* PORTIONS OF CENTRAL IOWA, NORTH CENTRAL IOWA, NORTHEAST IOWA,  
SOUTH CENTRAL IOWA, SOUTHWEST IOWA, AND WEST CENTRAL IOWA,  
INCLUDING THE FOLLOWING AREAS, IN CENTRAL IOWA, BOONE, DALLAS,  
GRUNDY, HAMILTON, HARDIN, MARSHALL, POLK, STORY, AND WEBSTER.  
IN NORTH CENTRAL IOWA, BUTLER, CERRO GORDO, FRANKLIN, HANCOCK,  
HUMBOLDT, AND WRIGHT. IN NORTHEAST IOWA, BLACK HAWK AND  
BREMER. IN SOUTH CENTRAL IOWA, MADISON AND WARREN. IN  
SOUTHWEST IOWA, ADAIR, ADAMS, AND CASS. IN WEST CENTRAL IOWA,  
AUDUBON, CALHOUN, CARROLL, CRAWFORD, GREENE, GUTHRIE, AND SAC.  
 
* THROUGH THURSDAY AFTERNOON  
 
* AMPLE MOISTURE WILL FUEL THUNDERSTORMS TONIGHT INTO THURSDAY  
MORNING. THESE STORMS WILL LIKELY TRAIN OVER THE SAME AREAS  
WITH RAINFALL RATES OF OVER 2 INCHES PER HOUR AT TIMES.  
 
* THIS RAINFALL MAY LEAD TO FLASH FLOODING, QUICK RISES ON  
SMALLER STREAMS, AND FLOODING OF LOW LYING AND POOR DRAINAGE  
AREAS. THIS WILL LIKELY BE MOST PROBLEMATIC IN URBAN AREAS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD  
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 

 
 
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