727  
WGUS83 KTOP 180737  
FLSTOP  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE TOPEKA KS  
237 AM CDT MON MAY 18 2026  
 
KSC143-181130-  
/O.NEW.KTOP.FA.Y.0011.260518T0737Z-260518T1130Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
OTTAWA KS-  
237 AM CDT MON MAY 18 2026  
   
..FLOOD ADVISORY IN EFFECT UNTIL 630 AM CDT THIS MORNING
 
 
...REPLACES FLASH FLOOD WARNING...  
 
* WHAT...URBAN AND SMALL STREAM FLOODING CAUSED BY EXCESSIVE  
RAINFALL IS EXPECTED.  
 
* WHERE...A PORTION OF NORTH CENTRAL KANSAS, INCLUDING THE FOLLOWING  
COUNTY, OTTAWA.  
 
* WHEN...UNTIL 630 AM CDT.  
 
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.  
 
* ADDITIONAL DETAILS...  
- AT 236 AM CDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES  
INDICATED HEAVY RAIN DUE TO THUNDERSTORMS. THIS WILL CAUSE  
URBAN AND SMALL STREAM FLOODING. BETWEEN 4 AND 5 INCHES OF  
RAIN HAVE FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS OF 0.5 TO 1 INCH ARE EXPECTED  
OVER THE AREA. THIS ADDITIONAL RAIN WILL RESULT IN MINOR  
FLOODING.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
MINNEAPOLIS AND ADA.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 

 
 
LAT...LON 3912 9793 3913 9793 3924 9793 3927 9779  
3913 9763 3902 9793  
 

 
 
BD  
 
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