101  
FZUS63 KMQT 180901  
GLFLS  
 
OPEN LAKE FORECAST FOR LAKE SUPERIOR  
NATIONAL WEATHER SERVICE MARQUETTE MI  
401 AM EST THU DEC 18 2025  
 
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 29.0 INCH CLIPPER OVER NORTHERN MINNESOTA THIS MORNING MOVES INTO  
LAKE SUPERIOR THIS AFTERNOON. THIS LOW LIFTS NORTHEAST AWAY FROM THE  
LAKE TONIGHT BEFORE REACHING NORTHERN QUEBEC FRIDAY MORNING. A 29.9  
INCH RIDGE THEN RETURNS TO THE LAKE ON FRIDAY VIA A 30.2 INCH HIGH  
OVER THE LOWER MISSISSIPPI VALLEY AND A WEAKENING 29.9 INCH HIGH  
OVER NORTHERN ONTARIO. ANOTHER LOW PRESSURE OF AROUND 29.3 INCHES  
TRACKS NORTH OF LAKE SUPERIOR ON SATURDAY. THIS IS THEN FOLLOWED BY  
A 30.3 INCH HIGH OVER THE CANADIAN PRAIRIES SLIDING SOUTHEAST INTO  
THE OHIO RIVER VALLEY LATE THIS WEEKEND, BUILDING TO 30.7 INCHES BY  
MONDAY MORNING.  
 
LSZ162-182100-  
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND  
PORTAGE MN BEYOND 5NM-  
401 AM EST THU DEC 18 2025 /301 AM CST THU DEC 18 2025/  
 
...GALE WARNING IN EFFECT FROM 4 PM EST /3 PM CST/ THIS AFTERNOON  
THROUGH LATE TONIGHT...  
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING  
THROUGH FRIDAY MORNING...  
   
EARLY THIS MORNING
 
SOUTH WINDS 20 TO 30 KNOTS. A CHANCE OF  
DRIZZLE. WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET.    
TODAY
 
SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 20 TO  
30 KNOTS BY LATE MORNING, THEN BECOMING NORTH GALES TO 45 KNOTS  
BY MID AFTERNOON. RAIN SHOWERS LIKELY AND A CHANCE OF DRIZZLE.  
SNOW SHOWERS IN THE AFTERNOON. FREEZING SPRAY IN THE AFTERNOON.  
WAVES SUBSIDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET, THEN  
BUILDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.    
TONIGHT
 
NORTH GALES TO 45 KNOTS. HEAVY FREEZING SPRAY. SNOW  
SHOWERS IN THE EVENING. A SLIGHT CHANCE OF SNOW SHOWERS AFTER  
MIDNIGHT. WAVES BUILDING TO 9 TO 12 FEET OCCASIONALLY TO 15 FEET,  
THEN SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.    
FRIDAY
 
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS  
BY LATE MORNING, THEN BECOMING SOUTH 10 TO 20 KNOTS BY MID  
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO  
2 FEET.    
FRIDAY NIGHT
 
SOUTH WINDS 20 TO 30 KNOTS VEERING SOUTHWEST  
AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE EVENING, THEN A CHANCE  
OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET  
OCCASIONALLY TO 9 FEET, THEN SUBSIDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET.    
SATURDAY
 
WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO  
35 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE AFTERNOON. WAVES  
BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.    
SATURDAY NIGHT
 
WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST  
15 TO 25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING.  
WAVES SUBSIDING TO 2 TO 4 FEET.    
SUNDAY
 
WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES  
SUBSIDING TO CALM TO 2 FEET.    
MONDAY
 
SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. WAVES  
BUILDING TO 1 TO 3 FEET.  
 
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ263-182100-  
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-  
401 AM EST THU DEC 18 2025  
 
...STORM WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH  
FRIDAY MORNING...  
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING  
THROUGH FRIDAY MORNING...  
   
EARLY THIS MORNING
 
SOUTH WINDS 20 TO 30 KNOTS. A CHANCE OF  
DRIZZLE. WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET.    
TODAY
 
SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST BY LATE  
MORNING, THEN BECOMING NORTH STORM FORCE WINDS TO 50 KNOTS BY MID  
AFTERNOON. A CHANCE OF DRIZZLE IN THE MORNING. RAIN SHOWERS. SNOW  
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET  
OCCASIONALLY TO 7 FEET, THEN BUILDING TO 7 TO 10 FEET  
OCCASIONALLY TO 13 FEET.    
TONIGHT
 
NORTH STORM FORCE WINDS TO 55 KNOTS DIMINISHING TO  
GALES TO 45 KNOTS LATE. HEAVY FREEZING SPRAY. SNOW SHOWERS IN THE  
EVENING. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING  
TO 12 TO 17 FEET OCCASIONALLY TO 21 FEET, THEN SUBSIDING TO 10 TO  
14 FEET OCCASIONALLY TO 18 FEET.    
FRIDAY
 
NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO  
20 KNOTS BY LATE MORNING, THEN BECOMING SOUTHEAST 5 TO 15 KNOTS  
BY MID AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING. A SLIGHT  
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.    
FRIDAY NIGHT
 
SOUTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW  
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.    
SATURDAY
 
SOUTHWEST GALES TO 35 KNOTS BECOMING WEST GALES TO  
40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. FREEZING  
SPRAY IN THE AFTERNOON. WAVES BUILDING TO 10 TO 14 FEET  
OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 9 TO 12 FEET  
OCCASIONALLY TO 15 FEET.    
SATURDAY NIGHT
 
WEST GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO  
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. WAVES SUBSIDING TO 4 TO  
7 FEET OCCASIONALLY TO 9 FEET.    
SUNDAY
 
NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 5 TO  
15 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.    
MONDAY
 
SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. WAVES  
SUBSIDING TO CALM TO 2 FEET, THEN BUILDING TO 2 TO 4 FEET.  
 
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ264-182100-  
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU  
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-  
401 AM EST THU DEC 18 2025  
 
...STORM WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH  
LATE TONIGHT...  
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING  
THROUGH FRIDAY MORNING...  
   
EARLY THIS MORNING
 
SOUTH WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE  
OF DRIZZLE. WAVES 9 TO 12 FEET OCCASIONALLY TO 15 FEET SUBSIDING  
TO 8 TO 11 FEET OCCASIONALLY TO 14 FEET.    
TODAY
 
SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS  
BY LATE MORNING, THEN BECOMING NORTH GALES TO 45 KNOTS BY MID  
AFTERNOON. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE MORNING,  
THEN RAIN SHOWERS, POSSIBLY MIXED WITH SNOW IN THE AFTERNOON.  
WAVES SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET, THEN  
BUILDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.    
TONIGHT
 
NORTH STORM FORCE WINDS TO 55 KNOTS. HEAVY FREEZING  
SPRAY. SNOW SHOWERS. WAVES BUILDING TO 12 TO 17 FEET OCCASIONALLY  
TO 21 FEET.    
FRIDAY
 
NORTH GALES TO 40 KNOTS DIMINISHING TO 5 TO 15 KNOTS.  
HEAVY FREEZING SPRAY IN THE MORNING. A CHANCE OF SNOW SHOWERS.  
WAVES SUBSIDING TO 2 TO 4 FEET.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 20 TO 30 KNOTS VEERING SOUTH  
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. FREEZING SPRAY AFTER  
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET, THEN BUILDING TO 6 TO  
9 FEET OCCASIONALLY TO 11 FEET.    
SATURDAY
 
SOUTHWEST GALES TO 35 KNOTS BECOMING WEST GALES TO  
40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. FREEZING  
SPRAY IN THE AFTERNOON. WAVES BUILDING TO 10 TO 14 FEET  
OCCASIONALLY TO 18 FEET.    
SATURDAY NIGHT
 
NORTHWEST GALES TO 40 KNOTS. HEAVY FREEZING  
SPRAY. WAVES SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.    
SUNDAY
 
NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 10 TO  
20 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 1 TO 3 FEET.    
MONDAY
 
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO  
25 KNOTS. WAVES BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.  
 
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ265-182100-  
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI  
BEYOND 5NM FROM SHORE-  
401 AM EST THU DEC 18 2025  
   
..GALE WARNING IN EFFECT THROUGH FRIDAY MORNING
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING  
THROUGH FRIDAY MORNING...  
   
EARLY THIS MORNING
 
SOUTH GALES TO 35 KNOTS. A SLIGHT CHANCE OF  
DRIZZLE. WAVES 6 TO 9 FEET OCCASIONALLY TO 11 FEET.    
TODAY
 
SOUTH WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO 25 KNOTS  
BY MID AFTERNOON. A CHANCE OF DRIZZLE IN THE MORNING, THEN RAIN  
SHOWERS, DRIZZLE LIKELY AND SNOW SHOWERS IN THE AFTERNOON. WAVES  
SUBSIDING TO 1 TO 3 FEET.    
TONIGHT
 
NORTH GALES TO 45 KNOTS INCREASING TO GALES TO  
45 KNOTS WITH A FEW STORM FORCE GUSTS TO 50 KNOTS POSSIBLE LATE.  
FREEZING SPRAY. RAIN SHOWERS LIKELY IN THE EVENING. SNOW SHOWERS.  
WAVES BUILDING TO 15 TO 20 FEET OCCASIONALLY TO 25 FEET.    
FRIDAY
 
NORTH GALES TO 45 KNOTS DIMINISHING TO 20 TO 30 KNOTS  
BY LATE MORNING, THEN BECOMING NORTHWEST 10 TO 20 KNOTS BY MID  
AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES  
SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.    
FRIDAY NIGHT
 
SOUTH WINDS 20 TO 30 KNOTS INCREASING TO GALES TO  
35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE EVENING,  
THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. FREEZING SPRAY AFTER  
MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET, THEN BUILDING TO 5 TO  
8 FEET OCCASIONALLY TO 10 FEET.    
SATURDAY
 
SOUTHWEST GALES TO 35 KNOTS BECOMING WEST GALES TO  
40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. FREEZING  
SPRAY IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET, THEN BUILDING TO 9 TO 12 FEET  
OCCASIONALLY TO 15 FEET.    
SATURDAY NIGHT
 
WEST GALES TO 45 KNOTS BECOMING NORTHWEST GALES  
TO 40 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. A CHANCE OF SNOW  
SHOWERS. WAVES SUBSIDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.   
SUNDAY
 
NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO  
25 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO CALM TO 2 FEET.    
MONDAY
 
SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.  
WAVES BUILDING TO 1 TO 3 FEET.  
 
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ266-182100-  
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-  
401 AM EST THU DEC 18 2025  
   
..GALE WARNING IN EFFECT THROUGH THIS EVENING
 
 
...STORM WARNING IN EFFECT FROM THIS EVENING THROUGH LATE  
TONIGHT...  
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING  
THROUGH FRIDAY MORNING...  
   
EARLY THIS MORNING
 
SOUTH GALES TO 40 KNOTS. A SLIGHT CHANCE OF  
DRIZZLE. WAVES 9 TO 12 FEET OCCASIONALLY TO 15 FEET SUBSIDING TO  
8 TO 11 FEET OCCASIONALLY TO 14 FEET.    
TODAY
 
SOUTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS. A  
CHANCE OF DRIZZLE AND RAIN SHOWERS IN THE MORNING, THEN RAIN  
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET.    
TONIGHT
 
WEST GALES TO 45 KNOTS BECOMING NORTH STORM FORCE  
WINDS TO 50 KNOTS BY MIDNIGHT. HEAVY FREEZING SPRAY. RAIN SHOWERS  
LIKELY AND A SLIGHT CHANCE OF DRIZZLE IN THE EVENING. SNOW  
SHOWERS. WAVES BUILDING TO 15 TO 20 FEET OCCASIONALLY TO 25 FEET.   
FRIDAY
 
NORTH GALES TO 45 KNOTS DIMINISHING TO 10 TO 20 KNOTS  
BY MID AFTERNOON. HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY IN  
THE MORNING. A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES  
SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.    
FRIDAY NIGHT
 
SOUTH WINDS 20 TO 30 KNOTS INCREASING TO GALES TO  
35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE EVENING,  
THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. FREEZING SPRAY AFTER  
MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET, THEN BUILDING TO 7 TO  
10 FEET OCCASIONALLY TO 13 FEET.    
SATURDAY
 
SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST GALES TO  
40 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY IN THE MORNING,  
THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. FREEZING SPRAY IN  
THE AFTERNOON. WAVES BUILDING TO 10 TO 14 FEET OCCASIONALLY TO  
18 FEET.    
SATURDAY NIGHT
 
WEST GALES TO 45 KNOTS BECOMING NORTHWEST GALES  
TO 40 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS LIKELY  
IN THE EVENING. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES  
BUILDING TO 12 TO 17 FEET OCCASIONALLY TO 21 FEET, THEN SUBSIDING  
TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET.    
SUNDAY
 
NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO  
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES  
SUBSIDING TO 2 TO 4 FEET.    
MONDAY
 
SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO  
30 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET.  
 
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ267-182100-  
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF  
SHORE TO THE US/CANADIAN BORDER-  
401 AM EST THU DEC 18 2025  
   
..GALE WARNING IN EFFECT THROUGH FRIDAY MORNING
 
 
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING  
THROUGH FRIDAY MORNING...  
   
EARLY THIS MORNING
 
SOUTH GALES TO 40 KNOTS. A SLIGHT CHANCE OF  
DRIZZLE. WAVES 5 TO 8 FEET OCCASIONALLY TO 10 FEET.    
TODAY
 
SOUTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS BY  
MID AFTERNOON. A CHANCE OF DRIZZLE AND RAIN SHOWERS IN THE  
MORNING, THEN RAIN SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO  
3 TO 5 FEET OCCASIONALLY TO 7 FEET.    
TONIGHT
 
WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES TO  
35 KNOTS BY MIDNIGHT, THEN BECOMING NORTH GALES TO 45 KNOTS LATE.  
DRIZZLE AND A CHANCE OF SNOW SHOWERS IN THE EVENING, THEN SNOW  
SHOWERS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT. WAVES  
SUBSIDING TO 2 TO 4 FEET, THEN BUILDING TO 10 TO 14 FEET  
OCCASIONALLY TO 18 FEET.    
FRIDAY
 
NORTH GALES TO 45 KNOTS DIMINISHING TO 15 TO 25 KNOTS  
BY MID AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY IN THE  
MORNING. A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES  
BUILDING TO 11 TO 15 FEET OCCASIONALLY TO 19 FEET, THEN SUBSIDING  
TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.    
FRIDAY NIGHT
 
SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO  
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE EVENING,  
THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO  
4 FEET, THEN BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.    
SATURDAY
 
SOUTH WINDS 20 TO 30 KNOTS BECOMING WEST GALES TO  
35 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES BUILDING TO 10 TO  
14 FEET OCCASIONALLY TO 18 FEET.    
SATURDAY NIGHT
 
WEST GALES TO 40 KNOTS VEERING NORTHWEST AFTER  
MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES BUILDING TO  
12 TO 17 FEET OCCASIONALLY TO 21 FEET, THEN SUBSIDING TO 10 TO  
14 FEET OCCASIONALLY TO 18 FEET.    
SUNDAY
 
NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO  
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES  
SUBSIDING TO 2 TO 4 FEET.    
MONDAY
 
SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO  
30 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET  
OCCASIONALLY TO 8 FEET.  
 
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ261-181500-  
MAFOR 1810/  
SUPERIOR WEST...STORM WARNING IN EFFECT...HEAVY FREEZING SPRAY  
WARNING IN EFFECT...11440 11430 11530 11647 11867 11877 11867  
11852. A CHANCE OF DRIZZLE TODAY. WAVES 3 TO 6 FEET BUILDING TO 5  
TO 7 FEET TODAY. WAVES 9 TO 13 FEET TONIGHT.  
 
SUPERIOR NORTH CENTRAL...STORM WARNING IN EFFECT...HEAVY FREEZING  
SPRAY WARNING IN EFFECT...12440 11446 11556 11867 13877. A CHANCE  
OF DRIZZLE THIS MORNING TODAY. WAVES 7 TO 11 FEET SUBSIDING TO 5  
TO 8 FEET TODAY. WAVES 9 TO 12 FEET BUILDING TO 12 TO 17 FEET  
TONIGHT.  
 
SUPERIOR SOUTH CENTRAL...STORM WARNING IN EFFECT...HEAVY FREEZING  
SPRAY WARNING IN EFFECT...12450 11440 11436 11636 11767 12867. A  
CHANCE OF DRIZZLE TODAY. WAVES 6 TO 10 FEET SUBSIDING TO 2 TO 4  
FEET TODAY. WAVES 3 TO 5 FEET BUILDING TO 15 TO 19 FEET TONIGHT.  
 
SUPERIOR EAST...STORM WARNING IN EFFECT...HEAVY FREEZING SPRAY  
WARNING IN EFFECT...12450 12446 11436 11647 11767 11867. WAVES 6  
TO 10 FEET SUBSIDING TO 4 TO 7 FEET TODAY. WAVES 3 TO 5 FEET  
BUILDING TO 10 TO 14 FEET TONIGHT.  
 

 
 
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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