103  
FZUS63 KMQT 061401  
GLFLS  
 
OPEN LAKE FORECAST FOR LAKE SUPERIOR  
NATIONAL WEATHER SERVICE MARQUETTE MI  
1000 AM EDT SAT JUN 6 2026  
 
FOR WATERS BEYOND 5 NAUTICAL MILES OF SHORE ON LAKE SUPERIOR.  
 
WAVES ARE THE SIGNIFICANT WAVE HEIGHT - THE AVERAGE OF THE  
HIGHEST 1/3 OF THE WAVE SPECTRUM. OCCASIONAL WAVE HEIGHT IS THE  
AVERAGE OF THE HIGHEST 1/10 OF THE WAVE SPECTRUM.  
   
SYNOPSIS  
 
 
A 29.6 INCH LOW SOUTH OF JAMES BAY THIS MORNING MOVES ACROSS  
SOUTHERN QUEBEC TODAY, ALLOWING RIDGING TO BUILD TO 30.1 INCHES OVER  
LAKE SUPERIOR THROUGH SUNDAY MORNING. MEANWHILE, A 29.3 INCH LOW  
FORMS OVER THE NORTHERN ROCKIES TODAY AND STRETCHES INTO THE  
NORTHERN PLAINS THROUGH SUNDAY NIGHT. BY MONDAY AFTERNOON, EXPECT  
LAKE SUPERIOR TO BE BETWEEN A 29.8 INCH TROUGH OVER MINNESOTA AND  
30.2 INCH HIGH PRESSURE OVER NEW ENGLAND. THE TROUGHING WEAKENS TO  
29.9 INCHES BEFORE MOVING OVER LAKE SUPERIOR ON TUESDAY. PRESSURE  
CONTINUES TO FALL OVER LAKE SUPERIOR THROUGH WEDNESDAY AS A COLORADO  
LOW LIFTS THROUGH THE NORTHERN PLAINS TOWARDS LAKE WINNIPEG,  
STRENGTHENING TO 29.6 INCHES BY WEDNESDAY NIGHT AS THE LOW DEEPENS  
TO 29.2 INCHES.  
 
LSZ162-062000-  
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND  
PORTAGE MN BEYOND 5NM-  
1000 AM EDT SAT JUN 6 2026 /900 AM CDT SAT JUN 6 2026/  
   
REST OF TODAY  
SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN  
THE AFTERNOON, THEN BACKING EAST LATE. PATCHY FOG. WAVES CALM TO  
2 FEET.    
TONIGHT  
EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST AFTER  
MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.    
SUNDAY  
NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 15 TO  
25 KNOTS. PATCHY FOG THROUGH EARLY AFTERNOON. WAVES BUILDING TO  
2 TO 4 FEET.    
SUNDAY NIGHT  
NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO  
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.    
MONDAY  
EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST BY MID  
AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY AFTERNOON. A SLIGHT  
CHANCE OF THUNDERSTORMS. SHOWERS LIKELY BY MID AFTERNOON. WAVES  
SUBSIDING TO CALM TO 2 FEET.    
MONDAY NIGHT  
EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST AFTER  
MIDNIGHT. SHOWERS LIKELY THROUGH MIDNIGHT. A CHANCE OF  
THUNDERSTORMS. WAVES CALM TO 2 FEET.    
TUESDAY  
NORTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.  
WAVES CALM TO 2 FEET.    
WEDNESDAY  
NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.  
A CHANCE OF THUNDERSTORMS. SHOWERS LIKELY. WAVES BUILDING TO 1 TO  
3 FEET.  
 
 
 
LSZ263-062000-  
LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE  
CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE  
ROYALE NATIONAL PARK-  
1000 AM EDT SAT JUN 6 2026  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON  
 
   
REST OF TODAY  
WEST WINDS LESS THAN 10 KNOTS BACKING SOUTHWEST  
IN THE AFTERNOON, THEN BECOMING EAST 5 TO 15 KNOTS LATE. PATCHY  
FOG. WAVES CALM TO 2 FEET.    
TONIGHT  
EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM TO  
2 FEET.    
SUNDAY  
EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO  
20 KNOTS IN THE AFTERNOON, THEN VEERING EAST LATE. PATCHY FOG  
THROUGH EARLY AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.    
SUNDAY NIGHT  
EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 5 TO  
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.    
MONDAY  
EAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS. A SLIGHT  
CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES BUILDING TO 2 TO  
4 FEET.    
MONDAY NIGHT  
SOUTHEAST WINDS 5 TO 15 KNOTS. SHOWERS LIKELY.  
WAVES SUBSIDING TO CALM TO 2 FEET.    
TUESDAY  
NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM  
TO 2 FEET.    
WEDNESDAY  
EAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A CHANCE OF  
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET, THEN SUBSIDING TO 1 TO  
3 FEET.  
 
 
 
LSZ264-062000-  
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU  
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-  
1000 AM EDT SAT JUN 6 2026  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON  
 
   
REST OF TODAY  
NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST IN  
THE AFTERNOON. AREAS OF DENSE FOG. WAVES CALM TO 2 FEET.    
TONIGHT  
WEST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN  
10 KNOTS AFTER MIDNIGHT, THEN BACKING EAST LATE. PATCHY FOG.  
WAVES CALM TO 2 FEET.    
SUNDAY  
SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST IN THE  
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. WAVES CALM TO  
2 FEET.    
SUNDAY NIGHT  
SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO  
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET, THEN  
SUBSIDING TO CALM TO 2 FEET.    
MONDAY  
SOUTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF  
SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.    
MONDAY NIGHT  
SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH  
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS THROUGH  
MIDNIGHT. SHOWERS LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO  
3 FEET.    
TUESDAY  
EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. WAVES  
SUBSIDING TO CALM TO 2 FEET.    
WEDNESDAY  
SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.  
WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.  
 
 
 
LSZ265-062000-  
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI  
BEYOND 5NM FROM SHORE-  
1000 AM EDT SAT JUN 6 2026  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON  
 
   
REST OF TODAY  
NORTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES  
CALM TO 2 FEET.    
TONIGHT  
NORTH WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO  
15 KNOTS AFTER MIDNIGHT. PATCHY DENSE FOG. WAVES CALM TO 2 FEET.    
SUNDAY  
EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS  
IN THE AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. WAVES  
BUILDING TO 1 TO 3 FEET.    
SUNDAY NIGHT  
SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING  
TO CALM TO 2 FEET.    
MONDAY  
SOUTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO  
5 FEET OCCASIONALLY TO 7 FEET.    
MONDAY NIGHT  
SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO  
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS THROUGH  
MIDNIGHT. SHOWERS LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO  
3 FEET.    
TUESDAY  
SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.  
WAVES SUBSIDING TO CALM TO 2 FEET.    
WEDNESDAY  
SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH. A  
CHANCE OF SHOWERS. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO  
7 FEET, THEN SUBSIDING TO 2 TO 4 FEET.  
 
 
 
LSZ266-062000-  
LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI  
AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER  
BEYOND 5NM FROM SHORE-  
1000 AM EDT SAT JUN 6 2026  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON  
 
   
REST OF TODAY  
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO  
5 TO 15 KNOTS LATE. AREAS OF DENSE FOG. WAVES CALM TO 2 FEET.    
TONIGHT  
NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER  
MIDNIGHT, THEN VEERING EAST LATE. PATCHY FOG THROUGH MIDNIGHT,  
THEN AREAS OF DENSE FOG AFTER MIDNIGHT. WAVES CALM TO 2 FEET.    
SUNDAY  
EAST WINDS 5 TO 15 KNOTS. PATCHY FOG THROUGH EARLY  
AFTERNOON. WAVES CALM TO 2 FEET.    
SUNDAY NIGHT  
SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO  
1 TO 3 FEET.    
MONDAY  
SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.    
MONDAY NIGHT  
SOUTHEAST WINDS 10 TO 20 KNOTS. SHOWERS LIKELY  
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.    
TUESDAY  
SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.  
WAVES SUBSIDING TO CALM TO 2 FEET.    
WEDNESDAY  
SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH. WAVES  
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.  
 
 
 
LSZ267-062000-  
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF  
SHORE TO THE US/CANADIAN BORDER-  
1000 AM EDT SAT JUN 6 2026  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON  
 
   
REST OF TODAY  
NORTHWEST WINDS 10 TO 20 KNOTS. AREAS OF DENSE  
FOG. WAVES CALM TO 2 FEET.    
TONIGHT  
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO  
15 KNOTS AFTER MIDNIGHT, THEN VEERING NORTHWEST LATE. PATCHY FOG.  
WAVES CALM TO 2 FEET.    
SUNDAY  
EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST IN THE  
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. WAVES CALM TO  
2 FEET.    
SUNDAY NIGHT  
SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO  
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.    
MONDAY  
SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.    
MONDAY NIGHT  
SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF  
SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.    
TUESDAY  
SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST. SHOWERS  
LIKELY. WAVES SUBSIDING TO CALM TO 2 FEET.    
WEDNESDAY  
SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO  
20 KNOTS. WAVES BUILDING TO 2 TO 4 FEET.  
 
 
 
LSZ261-062000-  
MAFOR 0615/  
SUPERIOR WEST 11500 11400 14200 12210. WAVES 1 FOOT OR LESS.  
 
SUPERIOR NORTH CENTRAL 11704 12604 12600 11204 11200 11300. WAVES  
1 FOOT OR LESS.  
 
SUPERIOR SOUTH CENTRAL 12714 11710 12700 12204 11304. WAVES 2  
FEET OR LESS.  
 
SUPERIOR EAST 13714 11710 12700 11100 11200. WAVES 2 FEET OR  
LESS.  
 
 
 
WFO MQT  
 
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT  
WEATHER.GOV/MQT/GLFTABLE  
 
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:  
WEATHER.GOV/GREATLAKES  
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