155  
FZUS63 KMKX 221942  
GLFLM  
 
OPEN LAKE FORECAST FOR LAKE MICHIGAN  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
142 PM CST SAT FEB 22 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
 
 
BREEZY SOUTHWEST WINDS WILL CONTINUE TODAY AS 30.4 INCH HIGH  
PRESSURE MOVES INTO THE SOUTHEASTERN US AND 29.4 INCH LOW  
PRESSURE MOVES FROM THE HUDSON BAY INTO QUEBEC. SOUTHWEST WINDS  
WILL CONTINUE INTO THE DAY ON SUNDAY AS 29.3 INCH LOW PRESSURE  
MOVES INTO THE CANADIAN GREAT PLAINS AND 30.1 INCH HIGH PRESSURE  
MOVES FROM THE SOUTHERN HUDSON BAY INTO QUEBEC.  
 
ANOTHER AREA OF LOW PRESSURE, AVERAGING 29.6 INCHES, PASSES  
THROUGH THE REGION ON WEDNESDAY. SOUTHERLY WINDS CAN BE EXPECTED  
JUST AHEAD OF THIS FEATURE, BEFORE WINDS TURN NORTHWESTERLY AS IT  
PASSES.  
 
LMZ261-362-364-366-563-565-567-868-230415-  
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-  
142 PM CST SAT FEB 22 2025  
 
SHEBOYGAN WI TO PENTWATER MI NORTH...  
   
TONIGHT
 
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO 15 KT.  
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.    
SUNDAY
 
SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH LATE IN THE  
MORNING, THEN BECOMING 10 TO 20 KT EARLY IN THE AFTERNOON  
BECOMING SOUTH 10 TO 20 KT LATE. WAVES 2 TO 4 FT.    
SUNDAY NIGHT
 
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST TO  
30 KT. CHANCE OF RAIN AND SNOW OVERNIGHT. WAVES 3 TO 5 FT  
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.    
MONDAY
 
SOUTHWEST WINDS TO 30 KT. WAVES 5 TO 8 FT OCCASIONALLY  
TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.    
MONDAY NIGHT
 
WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO  
15 KT. CHANCE OF RAIN IN THE EVENING. WAVES 3 TO 5 FT SUBSIDING  
TO 2 TO 4 FT.    
TUESDAY
 
NORTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.    
TUESDAY NIGHT
 
SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES  
1 TO 2 FT.    
WEDNESDAY
 
SOUTH WINDS 10 TO 15 KT VEERING TO WEST. CHANCE OF  
RAIN. WAVES 1 TO 3 FT.    
THURSDAY
 
NORTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.  
 

 
 
LMZ080-669-671-673-675-777-779-870-872-874-876-878-230415-  
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-  
142 PM CST SAT FEB 22 2025  
 
SHEBOYGAN WI TO PENTWATER MI SOUTH...  
   
TONIGHT
 
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO  
15 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 2 TO  
4 FT.    
SUNDAY
 
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO 20 KT.  
CHANCE OF FLURRIES. WAVES 2 TO 4 FT.    
SUNDAY NIGHT
 
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO  
25 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.    
MONDAY
 
SOUTHWEST WINDS 15 TO 25 KT. WAVES 5 TO 8 FT  
OCCASIONALLY TO 10 FT.    
MONDAY NIGHT
 
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO  
15 KT. CHANCE OF RAIN. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT  
SUBSIDING TO 2 TO 4 FT.    
TUESDAY
 
NORTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.    
TUESDAY NIGHT
 
WEST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES 1 TO  
3 FT.    
WEDNESDAY
 
SOUTH WINDS 10 TO 15 KT VEERING TO NORTHWEST. CHANCE  
OF RAIN. WAVES 1 TO 3 FT.    
THURSDAY
 
NORTHWEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.  
 

 
 
LMZ761-230415-  
MAFOR 2223/  
MICHIGAN NORTH 11530 11520 11620 11610 11600 11510 11410 11420.  
WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 1 TO 3  
FEET SUNDAY.  
 
MICHIGAN SOUTH 11530 11520 11620 11610 13510 11410. WAVES 4 TO 7  
FEET SUBSIDING TO 2 TO 4 FEET TONIGHT. WAVES 1 TO 3 FEET SUNDAY.  
 

 
 
BOXELL  
 
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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