744  
FLUS43 KGRR 290807  
HWOGRR  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
407 AM EDT SUN JUN 29 2025  
 
MIZ037>040-043>046-050>052-056>059-064>067-071>074-300815-  
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-  
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-  
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-  
407 AM EDT SUN JUN 29 2025  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER  
MICHIGAN.  
   
DAY ONE
 
TODAY AND TONIGHT  
 
SOME SCATTERED THUNDERSTORMS ARE POSSIBLE FROM THIS AFTERNOON  
INTO TONIGHT, BUT MOST AREAS WILL REMAIN DRY AND SEVERE STORMS ARE  
NOT ANTICIPATED.  
   
DAYS TWO THROUGH SEVEN
 
MONDAY THROUGH SATURDAY  
 
A MUCH BETTER CHANCE FOR THUNDERSTORMS EXISTS ON MONDAY AND IN  
FACT STORMS ARE LIKELY. ISOLATED SEVERE STORMS CANNOT BE RULED OUT  
WITH A FEW DAMAGING WIND GUSTS TO 50 TO 60 MPH BEING THE MAIN  
THREAT. LOCALLY HEAVY RAIN IS LIKELY.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL NOT BE NEEDED.  
 

 
 
LMZ844>849-300815-  
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-  
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-  
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-  
407 AM EDT SUN JUN 29 2025  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS FROM  
ST JOSEPH TO MANISTEE.  
   
DAY ONE
 
TODAY AND TONIGHT  
 
A FEW STORMS ARE POSSIBLE TODAY AND TONIGHT OVER LAKE MICHIGAN  
NORTH OF WHITEHALL. LIGHTNING WILL BE THE MAIN THREAT TO MARINERS  
FROM THESE STORMS.  
   
DAYS TWO THROUGH SEVEN
 
MONDAY THROUGH SATURDAY  
 
A BETTER CHANCE FOR STORMS EXISTS OVER ALL OF LAKE MICHIGAN ON  
MONDAY WITH WIND GUSTS IN EXCESS OF 35 KNOTS AND LIGHTNING  
POSSIBLE.  
 
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL NOT BE NEEDED.  
 

 
 
DUKE  
 
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