719  
FZUS63 KMKX 020806  
GLFLM  
 
OPEN LAKE FORECAST FOR LAKE MICHIGAN  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
306 AM CDT WED JUL 2 2025  
 
FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN.  
 
WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS, WHICH  
IS THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVE, ALONG WITH THE  
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL  
OCCASIONALLY BE ENCOUNTERED.  
   
SYNOPSIS
 
 
 
HIGH PRESSURE AROUND 30.0 INCHES WILL LINGER ACROSS THE MIDDLE  
MISSISSIPPI RIVER VALLEY TODAY INTO THURSDAY, BEFORE MOVING TO  
THE EAST BY FRIDAY. LIGHT SOUTHWEST TO WEST WINDS WILL CONTINUE  
TODAY INTO TONIGHT. LIGHT NORTH TO NORTHEAST WINDS THURSDAY INTO  
THURSDAY NIGHT WILL SHIFT SOUTH TO SOUTHWEST ON FRIDAY, AS A WARM  
FRONT MOVES NORTH THROUGH THE REGION.  
 
SOUTH TO SOUTHWEST WINDS WILL THEN INCREASE FRIDAY NIGHT INTO  
SATURDAY NIGHT, AS LOW PRESSURE AROUND 29.6 INCHES MOVES ACROSS  
LAKE SUPERIOR AND ONTARIO AND PULLS A COLD FRONT THROUGH THE  
REGION.  
 
THERE WILL BE MAINLY SMALL CHANCES FOR SHOWERS AND THUNDERSTORMS  
AT TIMES THIS AFTERNOON AND EVENING. MORE WIDESPREAD CHANCES FOR  
SHOWERS AND THUNDERSTORMS EXPECTED LATER SATURDAY INTO SUNDAY, AS  
THE COLD FRONT CROSSES THE LAKE.  
 
LMZ261-362-364-366-563-565-567-868-021530-  
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE  
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH  
FOX ISLAND 5 NM OFFSHORE-  
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-  
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID  
LAKE-  
306 AM CDT WED JUL 2 2025  
 
SHEBOYGAN WI TO PENTWATER MI NORTH...  
   
TODAY
 
WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT.  
CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES 1 TO  
2 FT.    
TONIGHT
 
SOUTHWEST WINDS 10 TO 15 KT VEERING TO NORTHWEST 5 TO  
10 KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN  
SLIGHT CHANCE OF SHOWERS OVERNIGHT. WAVES 1 TO 2 FT.    
THURSDAY
 
NORTH WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO  
15 KT. WAVES 1 FT OR LESS.    
THURSDAY NIGHT
 
EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES  
1 FT OR LESS.    
FRIDAY
 
SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.  
WAVES 1 TO 2 FT BUILDING TO 1 TO 3 FT.    
FRIDAY NIGHT
 
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.    
SATURDAY
 
SOUTHWEST WINDS 15 TO 25 KT BECOMING SOUTH. CHANCE OF  
SHOWERS. WAVES 3 TO 5 FT.    
SUNDAY
 
WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. CHANCE OF  
SHOWERS. WAVES 2 TO 4 FT.  
 

 
 
LMZ080-669-671-673-675-777-779-870-872-874-876-878-021530-  
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE  
TO MID LAKE-  
LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM  
OFFSHORE TO MID LAKE-  
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID  
LAKE-  
LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO  
MID LAKE-  
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID  
LAKE-  
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID  
LAKE-  
LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO  
MID LAKE-  
306 AM CDT WED JUL 2 2025  
 
SHEBOYGAN WI TO PENTWATER MI SOUTH...  
   
TODAY
 
WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 5 TO 10 KT.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES  
1 TO 2 FT.    
TONIGHT
 
SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTHWEST 5 TO  
10 KT. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.  
WAVES 1 TO 2 FT.    
THURSDAY
 
NORTHWEST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO  
15 KT. WAVES 1 FT OR LESS.    
THURSDAY NIGHT
 
EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES  
1 FT OR LESS.    
FRIDAY
 
SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.  
WAVES 1 TO 3 FT.    
FRIDAY NIGHT
 
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.    
SATURDAY
 
SOUTH WINDS 15 TO 25 KT. WAVES 3 TO 5 FT.    
SUNDAY
 
SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES  
2 TO 4 FT.  
 

 
 
LMZ761-021530-  
MAFOR 0210/  
MICHIGAN NORTH 11610 11600 14510 11600 11700. A CHANCE OF SHOWERS  
AND THUNDERSTORMS THIS AFTERNOON AND EVENING. WAVES 2 FEET OR  
LESS.  
 
MICHIGAN SOUTH 12610 12500 11510 13600. WAVES 1 FOOT OR LESS.  
 

 
WOOD  
 
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT  
WEATHER.GOV/MKX/GLFTABLE  
 
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:  
WEATHER.GOV/GREATLAKES  
 
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