453  
WHUS73 KAPX 021526  
MWWAPX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE GAYLORD MI  
1126 AM EDT WED APR 2 2025  
 
LMZ323-341-342-344>346-030000-  
/O.CON.KAPX.GL.W.0015.000000T0000Z-250403T0000Z/  
GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO  
NORWOOD MI-SEUL CHOIX POINT TO 5NM WEST OF MACKINAC BRIDGE-  
NORWOOD MI TO 5NM WEST OF MACKINAC BRIDGE INCLUDING LITTLE  
TRAVERSE BAY-SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI-  
POINT BETSIE TO SLEEPING BEAR POINT MI-  
MANISTEE TO POINT BETSIE MI-  
1126 AM EDT WED APR 2 2025  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
* WHAT...HIGHEST GUSTS UP TO 45 KTS FROM THE SOUTHEAST AND  
HIGHEST WAVES AROUND 10 FEET.  
 
* WHERE...PORTIONS OF LAKE MICHIGAN.  
 
* WHEN...UNTIL 8 PM EDT THIS EVENING.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS HIGHEST WAVES  
WHICH COULD CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
LSZ321-322-030000-  
/O.CON.KAPX.GL.W.0015.000000T0000Z-250403T0300Z/  
WHITEFISH BAY (U.S. PORTION)/WHITEFISH POINT TO POINT IROQUOIS MI-  
ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING BAY-  
1126 AM EDT WED APR 2 2025  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING
 
 
* WHAT...HIGHEST GUSTS UP TO 45 KTS FROM THE SOUTHEAST AND  
HIGHEST WAVES AROUND 6 FEET.  
 
* WHERE...WHITEFISH BAY (U. S. PORTION)/WHITEFISH POINT TO POINT  
IROQUOIS MI AND ST. MARYS RIVER POINT IROQUOIS TO E.  
POTAGANNISSING BAY.  
 
* WHEN...UNTIL 11 PM EDT THIS EVENING.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS HIGHEST WAVES  
WHICH COULD CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
LHZ345>349-030000-  
/O.CON.KAPX.GL.W.0015.000000T0000Z-250403T0300Z/  
STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING  
MACKINAC ISLAND-ST IGNACE TO FALSE DETOUR CHANNEL-  
5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI INCLUDING  
BOIS BLANC ISLAND-  
PRESQUE ISLE LIGHT TO STURGEON PT MI INCLUDING THUNDER BAY  
NATIONAL MARINE SANCTUARY-STURGEON PT TO ALABASTER MI-  
1126 AM EDT WED APR 2 2025  
   
..GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING
 
 
* WHAT...HIGHEST GUSTS UP TO 40 KTS FROM THE SOUTHEAST AND  
HIGHEST WAVES AROUND 14 FEET.  
 
* WHERE...STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE  
INCLUDING MACKINAC ISLAND, ST IGNACE TO FALSE DETOUR CHANNEL,  
5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI INCLUDING  
BOIS BLANC ISLAND, PRESQUE ISLE LIGHT TO STURGEON PT MI  
INCLUDING THUNDER BAY NATIONAL MARINE SANCTUARY AND STURGEON  
PT TO ALABASTER MI.  
 
* WHEN...UNTIL 11 PM EDT THIS EVENING.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS HIGHEST WAVES  
WHICH COULD CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
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