Marine Weather Forecast from Environment Canada

Winds


Issued 10:30 AM EST
06 November 2024

Today Tonight and Thursday. Strong wind warning in effect. Wind north 10 knots backing to northwest 10 this afternoon then increasing to west 15 near midnight. Wind increasing to west 20 Thursday morning and to west 30 Thursday evening.

Extended Forecast


Issued 03:00 AM EST
06 November 2024
Friday Wind west 25 knots diminishing to northwest 15 in the afternoon.
Saturday Wind south 15 knots.
Sunday Wind south 15 knots.

Waves


Issued 10:30 AM EST
06 November 2024

Today Tonight and Thursday. Waves 0.5 metres building to 0.5 to 1 late overnight and to 1 to 1.5 near noon Thursday.

Weather & Visibility


Issued 10:30 AM EST
06 November 2024

Today Tonight and Thursday.Scattered showers Thursday afternoon.

 

Lake Superior Mafor Forecast and Weather Conditions
From NOAA National Weather Service Weather Forecast Office



  
019  
FZUS63 KMQT 061441  
GLFLS  
 
OPEN LAKE FORECAST FOR LAKE SUPERIOR  
NATIONAL WEATHER SERVICE MARQUETTE MI  
941 AM EST WED NOV 6 2024  
 
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
 
HIGH PRESSURE BUILDS TO 30.1 INCHES OVER LAKE  
SUPERIOR THIS AFTERNOON, AND TO 30.2 INCHES THURSDAY WHILE WEAK  
30.0 INCH TROUGHING DESCENDS FROM CENTRAL CANADA. THIS TROUGH  
BRUSHES LAKE SUPERIOR THURSDAY NIGHT BEFORE A 30.3 INCH HIGH MOVES  
OVER THE LAKE LATE FRIDAY. THIS HIGH THEN LEAVES FOR SOUTHERN NEW  
ENGLAND FRIDAY NIGHT AND SATURDAY AS RIDGING OVER THE UPPER GREAT  
LAKES WEAKENS TO 30.1 INCHES. A STRENGTHENING 29.7 INCH LOW THEN  
LIFTS FROM THE CENTRAL PLAINS SATURDAY NIGHT TO LAKE SUPERIOR AT  
29.6 INCHES SUNDAY.  
 
LSZ162-062245-  
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND  
PORTAGE MN BEYOND 5NM-  
941 AM EST WED NOV 6 2024 /841 AM CST WED NOV 6 2024/  
 
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE  
THURSDAY NIGHT...  
   
REST OF TODAY
 
WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO  
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.    
TONIGHT
 
WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.    
THURSDAY
 
WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST GALES TO  
35 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 5 TO 8 FEET  
OCCASIONALLY TO 10 FEET.    
THURSDAY NIGHT
 
WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO  
30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 7 TO 10 FEET  
OCCASIONALLY TO 13 FEET, THEN SUBSIDING TO 3 TO 5 FEET  
OCCASIONALLY TO 7 FEET.    
FRIDAY
 
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS  
IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER  
MIDNIGHT. WAVES CALM TO 2 FEET.    
SATURDAY
 
SOUTHWEST WINDS 10 TO 20 KNOTS BACKING EAST. A CHANCE  
OF SHOWERS. WAVES CALM TO 2 FEET.    
SUNDAY
 
EAST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO 25 KNOTS.  
SHOWERS. WAVES BUILDING TO 1 TO 3 FEET, THEN SUBSIDING TO CALM TO  
2 FEET.  
 

 
 
LSZ263-062245-  
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-  
941 AM EST WED NOV 6 2024  
 
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE  
THURSDAY NIGHT...  
   
REST OF TODAY
 
NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY  
MID AFTERNOON. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.    
TONIGHT
 
WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS  
LATE. WAVES BUILDING TO 1 TO 3 FEET.    
THURSDAY
 
WEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO  
35 KNOTS. WAVES BUILDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.   
THURSDAY NIGHT
 
WEST GALES TO 40 KNOTS. WAVES BUILDING TO 10 TO  
14 FEET OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 5 TO 8 FEET  
OCCASIONALLY TO 10 FEET.    
FRIDAY
 
WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS  
IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.    
FRIDAY NIGHT
 
SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
SATURDAY
 
SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO  
15 KNOTS. SHOWERS LIKELY. WAVES BUILDING TO 1 TO 3 FEET, THEN  
SUBSIDING TO CALM TO 2 FEET.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 20 KNOTS VEERING WEST. SHOWERS.  
WAVES BUILDING TO 1 TO 3 FEET, THEN SUBSIDING TO CALM TO 2 FEET.  
 

 
 
LSZ264-062245-  
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU  
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-  
941 AM EST WED NOV 6 2024  
 
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE  
THURSDAY NIGHT...  
   
REST OF TODAY
 
NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY  
MID AFTERNOON. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.    
TONIGHT
 
WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS  
LATE. WAVES BUILDING TO 1 TO 3 FEET.    
THURSDAY
 
WEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO  
35 KNOTS. WAVES BUILDING TO 8 TO 11 FEET OCCASIONALLY TO 14 FEET.   
THURSDAY NIGHT
 
WEST GALES TO 40 KNOTS. WAVES BUILDING TO 10 TO  
14 FEET OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 7 TO 10 FEET  
OCCASIONALLY TO 13 FEET.    
FRIDAY
 
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.    
FRIDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER  
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.    
SATURDAY
 
SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO  
15 KNOTS. A CHANCE OF SHOWERS. WAVES BUILDING TO 1 TO 3 FEET,  
THEN SUBSIDING TO CALM TO 2 FEET.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 20 KNOTS VEERING WEST. SHOWERS  
LIKELY, THEN A CHANCE OF SHOWERS. WAVES BUILDING TO 2 TO 4 FEET,  
THEN SUBSIDING TO 1 TO 3 FEET.  
 

 
 
LSZ265-062245-  
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI  
BEYOND 5NM FROM SHORE-  
941 AM EST WED NOV 6 2024  
 
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY  
MORNING...  
   
REST OF TODAY
 
NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST.  
WAVES 3 TO 5 FEET OCCASIONALLY TO 7 FEET SUBSIDING TO CALM TO  
2 FEET.    
TONIGHT
 
WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS  
BY MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.    
THURSDAY
 
WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO  
25 KNOTS BY LATE MORNING, THEN INCREASING TO 20 TO 30 KNOTS BY  
MID AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET OCCASIONALLY TO  
8 FEET.    
THURSDAY NIGHT
 
WEST GALES TO 35 KNOTS. WAVES BUILDING TO 4 TO  
8 FEET OCCASIONALLY TO 10 FEET.    
FRIDAY
 
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO  
20 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.    
FRIDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER  
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.    
SATURDAY
 
SOUTH WINDS 10 TO 20 KNOTS. SHOWERS LIKELY. WAVES  
CALM TO 2 FEET.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 20 KNOTS VEERING WEST. SHOWERS,  
THEN A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ266-062245-  
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-  
941 AM EST WED NOV 6 2024  
 
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY  
MORNING...  
   
REST OF TODAY
 
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS BY LATE MORNING, THEN BACKING NORTHWEST BY MID  
AFTERNOON. WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET SUBSIDING TO  
CALM TO 2 FEET.    
TONIGHT
 
NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY  
MIDNIGHT, THEN INCREASING TO 15 TO 25 KNOTS LATE. WAVES BUILDING  
TO 1 TO 3 FEET.    
THURSDAY
 
WEST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS WITH  
A FEW GALE FORCE GUSTS TO 35 KNOTS POSSIBLE. WAVES BUILDING TO  
7 TO 10 FEET OCCASIONALLY TO 13 FEET.    
THURSDAY NIGHT
 
WEST GALES TO 40 KNOTS. WAVES BUILDING TO 10 TO  
14 FEET OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 8 TO 11 FEET  
OCCASIONALLY TO 14 FEET.    
FRIDAY
 
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO  
20 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET.    
FRIDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER  
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.    
SATURDAY
 
SOUTH WINDS 10 TO 20 KNOTS. RAIN SHOWERS LIKELY.  
WAVES BUILDING TO 1 TO 3 FEET.    
SUNDAY
 
SOUTHEAST WINDS 10 TO 20 KNOTS VEERING WEST. SHOWERS,  
THEN A CHANCE OF SHOWERS. WAVES BUILDING TO 2 TO 4 FEET, THEN  
SUBSIDING TO 1 TO 3 FEET.  
 

 
 
LSZ267-062245-  
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF  
SHORE TO THE US/CANADIAN BORDER-  
941 AM EST WED NOV 6 2024  
 
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY  
MORNING...  
   
REST OF TODAY
 
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS BY LATE MORNING, THEN BACKING NORTHWEST BY MID  
AFTERNOON. WAVES 3 TO 5 FEET OCCASIONALLY TO 7 FEET SUBSIDING TO  
CALM TO 2 FEET.    
TONIGHT
 
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO  
25 KNOTS LATE. WAVES BUILDING TO 1 TO 3 FEET.    
THURSDAY
 
WEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF  
SHOWERS. WAVES BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.    
THURSDAY NIGHT
 
WEST GALES TO 40 KNOTS. A SLIGHT CHANCE OF  
SHOWERS IN THE EVENING. WAVES BUILDING TO 8 TO 12 FEET  
OCCASIONALLY TO 15 FEET.    
FRIDAY
 
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO  
25 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET.    
FRIDAY NIGHT
 
NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER  
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.    
SATURDAY
 
SOUTH WINDS 10 TO 20 KNOTS. RAIN SHOWERS LIKELY.  
WAVES BUILDING TO 1 TO 3 FEET, THEN SUBSIDING TO CALM TO 2 FEET.    
SUNDAY
 
SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO  
20 KNOTS. SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.  
 

 
LSZ261-062245-  
MAFOR 0616/  
SUPERIOR WEST 11600 14610 12620 11630. WAVES 1 TO 2 FEET THIS  
AFTERNOON AND TONIGHT BUILDING TO 3 TO 5 FEET THURSDAY MORNING.  
 
SUPERIOR NORTH CENTRAL 11810 11710 12610 12620 12630. WAVES 1 TO  
3 FEET THIS AFTERNOON AND TONIGHT BUILDING TO 3 TO 5 FEET  
THURSDAY MORNING.  
 
SUPERIOR SOUTH CENTRAL 13710 11610 12620 12630. WAVES 1 TO 4 FEET  
THIS AFTERNOON AND TONIGHT BUILDING TO 3 TO 5 FEET THURSDAY  
MORNING.  
 
SUPERIOR EAST 11820 14710 11620 12630. WAVES 1 TO 4 FEET THIS  
AFTERNOON AND TONIGHT BUILDING TO 3 TO 6 FEET THURSDAY MORNING.  
 

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




Random Weather Facts

Canadian Facts and Trivia - THE EXTREMES
Though the past few winters in Atlantic Canada have seemed like record-breaking for snowfall, it’s the West Coast where you’ll find the all-time record snowfall in a single season.

Mount Copeland, near Revelstoke, B.C., recorded an astonishing 2,446.5 cm of snow in the winter of 1971/1972. To put it another way: That’s about 24 METRES.