118  
FZUS63 KMKX 150140  
GLFLM  
 
OPEN LAKE FORECAST FOR LAKE MICHIGAN  
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI  
840 PM CDT MON OCT 14 2024  
 
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
 
 
BRISK NORTHERLY WINDS WILL GRADUALLY INCREASE TONIGHT INTO  
TUESDAY, BUT REMAIN JUST BELOW GALES. THIS IS IN RESPONSE TO A  
TROUGH OF LOW PRESSURE SHIFTING SOUTH ACROSS THE LAKE TONIGHT,  
WHILE HIGH PRESSURE OF 30.5 INCHES BUILDS INTO MINNESOTA FROM  
CANADA. LAKE EFFECT SHOWERS AND SCATTERED THUNDERSTORMS WILL  
CONTINUE INCLUDING THE POTENTIAL FOR WATERSPOUTS. THESE CONDITIONS  
WILL CONTINUE INTO TUESDAY NIGHT FOLLOWED BY LIGHTER WINDS ON  
WEDNESDAY AS A RIDGE OF HIGH PRESSURE SHIFTS ACROSS THE LAKE.  
A PROLONGED PERIOD OF MODEST TO BREEZY SOUTH WINDS ARE THEN  
EXPECTED FROM THURSDAY INTO THE WEEKEND.  
 
LMZ261-362-364-366-563-565-567-868-150915-  
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-  
840 PM CDT MON OCT 14 2024  
 
SHEBOYGAN WI TO PENTWATER MI NORTH...  
   
REST OF TONIGHT
 
NORTHEAST WINDS 10 TO 20 KT INCREASING TO  
30 KT. WATERSPOUTS LIKELY THROUGH EARLY EVENING, THEN CHANCE OF  
WATERSPOUTS OVERNIGHT. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING  
TO 5 TO 8 FT OCCASIONALLY TO 10 FT.    
TUESDAY
 
NORTH WINDS TO 30 KT. CHANCE OF WATERSPOUTS. SLIGHT  
CHANCE OF RAIN SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.    
TUESDAY NIGHT
 
NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT.  
CHANCE OF WATERSPOUTS IN THE EVENING. CHANCE OF RAIN SHOWERS IN  
THE EVENING. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO  
4 TO 7 FT OCCASIONALLY TO 9 FT.    
WEDNESDAY
 
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES  
4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.    
WEDNESDAY NIGHT
 
SOUTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.    
THURSDAY
 
SOUTHWEST WINDS 15 TO 25 KT INCREASING TO 30 KT.  
WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.    
THURSDAY NIGHT
 
SOUTH WINDS TO 30 KT. WAVES 6 TO 9 FT  
OCCASIONALLY TO 12 FT.    
FRIDAY
 
SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT. WAVES 6 TO  
9 FT OCCASIONALLY TO 12 FT.    
SATURDAY
 
SOUTHWEST WINDS 15 TO 25 KT. WAVES 4 TO 6 FT  
OCCASIONALLY TO 8 FT.  
 

 
 
LMZ080-669-671-673-675-777-779-870-872-874-876-878-150915-  
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-  
840 PM CDT MON OCT 14 2024  
 
SHEBOYGAN WI TO PENTWATER MI SOUTH...  
   
REST OF TONIGHT
 
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST  
15 TO 25 KT. WATERSPOUTS LIKELY. SHOWERS LIKELY WITH A CHANCE OF  
THUNDERSTORMS THROUGH EARLY EVENING, THEN CHANCE OF SHOWERS AND  
THUNDERSTORMS OVERNIGHT. WAVES 3 TO 5 FT BUILDING TO 4 TO 7 FT  
OCCASIONALLY TO 9 FT.    
TUESDAY
 
NORTHEAST WINDS TO 30 KT BECOMING NORTH. CHANCE OF  
WATERSPOUTS. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN RAIN SHOWERS LIKELY WITH  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 6 TO 9 FT  
OCCASIONALLY TO 12 FT BUILDING TO 8 TO 12 FT OCCASIONALLY TO  
16 FT.    
TUESDAY NIGHT
 
NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT.  
CHANCE OF WATERSPOUTS IN THE EVENING. CHANCE OF RAIN SHOWERS.  
WAVES 8 TO 12 FT OCCASIONALLY TO 16 FT SUBSIDING TO 6 TO 9 FT  
OCCASIONALLY TO 12 FT.    
WEDNESDAY
 
NORTHWEST WINDS 10 TO 20 KT. WAVES 5 TO 8 FT  
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO  
8 FT.    
WEDNESDAY NIGHT
 
WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST.  
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.    
THURSDAY
 
SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH TO 30 KT  
IN THE AFTERNOON. WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT  
OCCASIONALLY TO 9 FT.    
THURSDAY NIGHT
 
SOUTH WINDS TO 30 KT. WAVES 5 TO 8 FT  
OCCASIONALLY TO 10 FT.    
FRIDAY
 
SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT. WAVES 5 TO  
8 FT OCCASIONALLY TO 10 FT.    
SATURDAY
 
SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 15 TO  
25 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.  
 

 
 
LMZ761-150915-  
MAFOR 1504/  
MICHIGAN NORTH 12130 11840 11830 14840. WATERSPOUTS LIKELY LATE  
THIS EVENING, THEN A CHANCE OF WATERSPOUTS OVERNIGHT. A CHANCE OF  
WATERSPOUTS TUESDAY AND TUESDAY EVENING. A CHANCE OF SHOWERS  
OVERNIGHT AND TUESDAY EVENING. WAVES 3 TO 6 FEET BUILDING TO 5 TO  
8 FEET OVERNIGHT. WAVES 6 TO 10 FEET TUESDAY AND TUESDAY EVENING.  
 
MICHIGAN SOUTH 12126 11130 11140 14846. WATERSPOUTS LIKELY  
OVERNIGHT. A CHANCE OF WATERSPOUTS TUESDAY AND TUESDAY EVENING. A  
CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 2 TO 4 FEET BUILDING TO  
3 TO 6 FEET OVERNIGHT. WAVES 6 TO 10 FEET BUILDING TO 8 TO 11  
FEET TUESDAY. WAVES 8 TO 11 FEET TUESDAY EVENING.  
 

 
 
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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