297  
WWUS53 KOAX 130953  
SVSOAX  
 
SEVERE WEATHER STATEMENT  
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA  
453 AM CDT THU AUG 13 2026  
 
IAC133-131003-  
/O.CAN.KOAX.SV.W.0352.000000T0000Z-260813T1015Z/  
MONONA IA-  
453 AM CDT THU AUG 13 2026  
 
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONONA COUNTY IS  
CANCELLED...  
 
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED  
AREA. THEREFORE, THE WARNING HAS BEEN CANCELLED.  
 
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 AM CDT FOR  
SOUTHWESTERN IOWA.  
 

 
 
LAT...LON 4164 9566 4178 9569 4186 9567 4186 9510  
4165 9509  
TIME...MOT...LOC 0953Z 271DEG 45KT 4195 9555 4181 9543 4163 9548  
 

 
 
IAC085-165-131015-  
/O.CON.KOAX.SV.W.0352.000000T0000Z-260813T1015Z/  
HARRISON IA-SHELBY IA-  
453 AM CDT THU AUG 13 2026  
 
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT  
FOR NORTHEASTERN HARRISON AND NORTHERN SHELBY COUNTIES...  
 
AT 453 AM CDT, SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE  
EXTENDING FROM 6 MILES NORTH OF DUNLAP TO 2 MILES NORTH OF EARLING TO  
6 MILES NORTHEAST OF PERSIA, MOVING EAST AT 50 MPH.  
 
HAZARD...60 MPH WIND GUSTS.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...EXPECT DAMAGE TO ROOFS, SIDING, AND TREES.  
 
LOCATIONS IMPACTED INCLUDE...  
HARLAN, IRWIN AND DEFIANCE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A  
BUILDING.  
 

 
 
LAT...LON 4164 9566 4178 9569 4186 9567 4186 9510  
4165 9509  
TIME...MOT...LOC 0953Z 271DEG 45KT 4195 9555 4181 9543 4163 9548  
 
HAIL THREAT...RADAR INDICATED  
MAX HAIL SIZE...<.75 IN  
WIND THREAT...RADAR INDICATED  
MAX WIND GUST...60 MPH  
 

 
 
KG  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab NE Page
The Nexlab IA Page Main Text Page