WGUS63 KGRR 181213

FFAGRR



URGENT - IMMEDIATE BROADCAST REQUESTED

Flood Watch

National Weather Service Grand Rapids MI

813 AM EDT Sat Apr 18 2026



MIZ043-191415-

/O.EXT.KGRR.FF.A.0001.000000T0000Z-260419T1600Z/

/00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Oceana-

Including the cities of Hart

813 AM EDT Sat Apr 18 2026



...FLASH FLOOD WATCH FOR THE POTENTIAL FAILURE OF HESPERIA DAM ON 

THE WHITE RIVER NOW IN EFFECT THROUGH SUNDAY MORNING...



* WHAT...Flash Flooding caused by a potential dam failure continues 

  to be possible at the Hesperia Dam.



* WHERE...A portion of west central Michigan, including the 

  following county, Oceana.



* WHEN...Through Sunday morning.



* IMPACTS...Dam failure may result in flash flooding of low-lying 

  areas below the dam.



* ADDITIONAL DETAILS...

  - Flows remain extremely high through the Hesperia Dam.

    Rainfall totals up to 1.25 inches overnight have increased

    flows on the White River.

  - 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.



&&



$$



Thomas