759  
FZUS63 KMKX 071359  
GLFLM  
 
OPEN LAKE FORECAST FOR LAKE MICHIGAN  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
859 AM CDT TUE APR 7 2026  
 
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
 
 
GUSTY NORTHERLY WINDS WILL DECREASE THROUGH THE MORNING AS HIGH  
PRESSURE AROUND 30.6 INCHES MOVES ACROSS CENTRAL LAKE MICHIGAN  
INTO THE EARLY AFTERNOON. LOW PRESSURE AROUND 29.5 INCHES WILL  
THEN TRACK ALONG THE NORTHERN PLAINS/CANADIAN BORDER TONIGHT AND  
WEDNESDAY, THEN TRACK NORTH OF LAKE SUPERIOR WEDNESDAY NIGHT INTO  
THURSDAY MORNING. THIS WILL RESULT IN BREEZY SOUTHERLY WINDS OVER  
LAKE MICHIGAN ON WEDNESDAY WITH GALE FORCE GUSTS UP TO 40 KT. A  
GALE WATCH IS IN EFFECT FOR THE NORTHERN THREE QUARTERS OF THE  
LAKE.  
 
MUCH WEAKER WINDS WILL THEN TAKE HOLD BY THURSDAY AFTERNOON INTO  
FRIDAY AS HIGH PRESSURE AROUND 30.4 INCHES SLOWLY MOVES THROUGH  
THE REGION.  
 
LMZ261-362-364-366-563-565-567-868-072115-  
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-  
859 AM CDT TUE APR 7 2026  
 
SHEBOYGAN WI TO PENTWATER MI NORTH...  
 
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE  
WEDNESDAY NIGHT...  
   
REST OF TODAY
 
NORTHWEST WINDS 10 TO 15 KT BACKING TO SOUTHWEST  
10 TO 20 KT. WAVES 3 TO 5 FT SUBSIDING TO 1 TO 3 FT.    
TONIGHT
 
SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT.  
WAVES 1 TO 3 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.    
WEDNESDAY
 
SOUTH WINDS TO 30 KT INCREASING TO GALES TO 35 KT.  
CHANCE OF RAIN AND SNOW SHOWERS IN THE MORNING. WAVES 7 TO 10 FT  
OCCASIONALLY TO 13 FT BUILDING TO 12 TO 16 FT OCCASIONALLY TO  
21 FT.    
WEDNESDAY NIGHT
 
SOUTH GALES TO 40 KT BECOMING SOUTHWEST. RAIN  
SHOWERS IN THE EVENING, THEN CHANCE OF RAIN SHOWERS OVERNIGHT.  
WAVES 12 TO 16 FT OCCASIONALLY TO 21 FT.    
THURSDAY
 
SOUTHWEST WINDS TO 30 KT. WAVES 5 TO 8 FT  
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO  
8 FT.    
THURSDAY NIGHT
 
NORTHWEST WINDS 10 TO 20 KT VEERING TO  
NORTHEAST 10 TO 15 KT. CHANCE OF RAIN SHOWERS. WAVES 2 TO 4 FT  
SUBSIDING TO 1 TO 2 FT.    
FRIDAY
 
NORTH WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.    
SATURDAY
 
SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.  
WAVES 1 TO 2 FT.  
 

 
 
LMZ669-671-673-870-872-874-072115-  
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 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-  
859 AM CDT TUE APR 7 2026  
 
SHEBOYGAN WI TO PENTWATER MI SOUTH TO WIND POINT WI TO HOLLAND  
MI...  
 
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE  
WEDNESDAY NIGHT...  
   
REST OF TODAY
 
NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO  
10 KT LATE THIS MORNING, THEN BECOMING NORTH 5 TO 10 KT EARLY  
THIS AFTERNOON BECOMING EAST LATE. WAVES 4 TO 6 FT OCCASIONALLY  
TO 8 FT SUBSIDING TO 1 TO 3 FT.    
TONIGHT
 
SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT.  
WAVES 1 TO 3 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.    
WEDNESDAY
 
SOUTH WINDS TO 30 KT INCREASING TO GALES TO 35 KT.  
CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 7 TO 10 FT  
OCCASIONALLY TO 13 FT BUILDING TO 10 TO 14 FT OCCASIONALLY TO  
18 FT.    
WEDNESDAY NIGHT
 
SOUTH GALES TO 35 KT BECOMING SOUTHWEST.  
CHANCE OF RAIN SHOWERS IN THE EVENING, THEN RAIN SHOWERS  
OVERNIGHT. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.    
THURSDAY
 
SOUTHWEST WINDS 15 TO 25 KT. WAVES 5 TO 8 FT  
OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT.    
THURSDAY NIGHT
 
SOUTH WINDS 10 TO 20 KT BACKING TO NORTHEAST  
10 TO 15 KT. CHANCE OF RAIN SHOWERS. WAVES 1 TO 3 FT SUBSIDING TO  
1 TO 2 FT.    
FRIDAY
 
NORTH WINDS 10 TO 15 KT. CHANCE OF RAIN SHOWERS. WAVES  
1 TO 2 FT.    
SATURDAY
 
EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES 1 TO  
2 FT.  
 

 
 
LMZ080-675-777-779-876-878-072115-  
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 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-  
859 AM CDT TUE APR 7 2026  
 
WIND POINT WI TO HOLLAND MI SOUTH...  
   
REST OF TODAY
 
NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST.  
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 2 TO 4 FT.    
TONIGHT
 
NORTHEAST WINDS 5 TO 10 KT BECOMING SOUTHEAST LATE IN  
THE EVENING, THEN BECOMING 10 TO 20 KT AFTER MIDNIGHT INCREASING  
TO 15 TO 25 KT LATE. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT.    
WEDNESDAY
 
SOUTH WINDS TO 30 KT. WAVES 5 TO 8 FT OCCASIONALLY  
TO 10 FT.    
WEDNESDAY NIGHT
 
SOUTH WINDS TO 30 KT. RAIN SHOWERS LIKELY  
OVERNIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT.    
THURSDAY
 
SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF RAIN SHOWERS  
IN THE MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO  
2 TO 4 FT.    
THURSDAY NIGHT
 
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST.  
RAIN SHOWERS LIKELY. WAVES 1 TO 2 FT.    
FRIDAY
 
NORTH WINDS 10 TO 15 KT. CHANCE OF RAIN SHOWERS. WAVES  
1 TO 2 FT.    
SATURDAY
 
EAST WINDS 5 TO 10 KT BECOMING NORTHEAST. WAVES 1 TO  
2 FT.  
 

 
 
LMZ761-072115-  
MAFOR 0716/  
MICHIGAN NORTH 11610 11510 12410 11420 11430 12440. A CHANCE OF  
RAIN AND SNOW SHOWERS WEDNESDAY MORNING. WAVES 1 TO 3 FEET THIS  
AFTERNOON. WAVES 2 FEET OR LESS BUILDING TO 3 TO 6 FEET TONIGHT.  
WAVES 7 TO 10 FEET BUILDING TO 9 TO 12 FEET WEDNESDAY MORNING.  
 
MICHIGAN SOUTH 12100 11210 11310 11320 11430 12440. A CHANCE OF  
RAIN SHOWERS WEDNESDAY MORNING. WAVES 3 TO 5 FEET SUBSIDING TO 1  
TO 3 FEET THIS AFTERNOON. WAVES 2 FEET OR LESS BUILDING TO 3 TO 6  
FEET TONIGHT. WAVES 7 TO 11 FEET WEDNESDAY MORNING.  
 

 
 
KUROSKI  
 
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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