520  
WGUS63 KGRR 191737  
FFAGRR  
 
FLOOD WATCH  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
137 PM EDT SUN APR 19 2026  
 
MIZ043-201600-  
/O.CON.KGRR.FF.A.0001.000000T0000Z-260420T1600Z/  
/00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
OCEANA-  
INCLUDING THE CITIES OF HART  
137 PM EDT SUN APR 19 2026  
 
...FLASH FLOOD WATCH FOR THE POTENTIAL FAILURE OF HESPERIA DAM ON  
THE WHITE RIVER REMAINS IN EFFECT THROUGH MONDAY MORNING...  
 
* WHAT...FLASH FLOODING CAUSED BY A POTENTIAL DAM OR LEVEE FAILURE  
CONTINUES TO BE POSSIBLE AT THE HESPERIA DAM.  
 
* WHERE...A PORTION OF WEST CENTRAL MICHIGAN, INCLUDING THE  
FOLLOWING COUNTY, OCEANA.  
 
* WHEN...THROUGH MONDAY MORNING.  
 
* IMPACTS...DAM FAILURE MAY RESULT IN FLASH FLOODING OF LOW-LYING  
AREAS BELOW THE DAM.  
 
* ADDITIONAL DETAILS...  
- HIGH FLOWS WILL CONTINUE AS RUNOFF FROM RECENT HEAVY RAINS  
MOVE DOWN THE RIVER. RIVER LEVELS WILL SLOWLY COME DOWN THIS  
WEEK AS NO SIGNIFICANT RAIN IS EXPECTED.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION  
SHOULD FLASH FLOOD WARNINGS BE ISSUED.  
 
DAM SAFETY EXPERTS WITH STATE AND LOCAL EMERGENCY SERVICES ARE  
MONITORING THE DAM AND WILL ISSUE A PUBLIC STATEMENT AS CONDITIONS  
WARRANT. PLAN NOW SO YOU WILL KNOW WHAT TO DO IN AN EMERGENCY. KEEP  
INFORMED BY LISTENING TO LOCAL RADIO AND TELEVISION FOR STATEMENTS  
AND POSSIBLE WARNINGS. FOLLOW THE ADVICE OF PUBLIC SAFETY OFFICIALS.  
 
 
 
 
 
OSTUNO  
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