183  
FZUS53 KDLH 011102  
NSHDLH  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE DULUTH MN  
602 AM CDT TUE APR 1 2025  
 
FOR WATERS WITHIN FIVE 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.  
 
LSZ140-141-011615-  
GRAND PORTAGE TO GRAND MARAIS MN-  
GRAND MARAIS TO TACONITE HARBOR MN-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON  
THROUGH LATE TONIGHT...  
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY  
EVENING...  
   
TODAY
 
NORTHEAST WIND 5 TO 10 KNOTS BECOMING EAST 15 TO  
20 KNOTS WITH GUSTS TO AROUND 25 KNOTS IN THE AFTERNOON. MOSTLY  
SUNNY. WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET IN THE  
AFTERNOON.    
TONIGHT
 
EAST WIND 20 TO 25 KNOTS. GUSTS UP TO 25 KNOTS  
INCREASING TO 30 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF  
SNOW IN THE EVENING, THEN CHANCE OF SNOW AFTER MIDNIGHT. WAVES  
4 TO 6 FEET BUILDING TO 5 TO 8 FEET EARLY IN THE MORNING. WAVES  
OCCASIONALLY TO 10 FEET.    
WEDNESDAY
 
EAST WIND UP TO 30 KNOTS. GUSTS UP TO 35 KNOTS  
INCREASING TO 40 KNOTS LATE IN THE MORNING, THEN DECREASING TO  
35 KNOTS IN THE AFTERNOON. SNOW THROUGH THE DAY. RAIN IN THE  
AFTERNOON. WAVES 7 TO 12 FEET. WAVES OCCASIONALLY TO 16 FEET.    
WEDNESDAY NIGHT
 
NORTHEAST WIND UP TO 30 KNOTS WITH GALES TO  
AROUND 40 KNOTS BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO  
AROUND 25 KNOTS AFTER MIDNIGHT. RAIN IN THE EVENING. SNOW LIKELY  
THROUGH THE NIGHT. RAIN LIKELY AFTER MIDNIGHT. WAVES 8 TO 11 FEET  
SUBSIDING TO 4 TO 7 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY TO  
14 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ142-143-011615-  
TACONITE HARBOR TO SILVER BAY HARBOR MN-  
SILVER BAY HARBOR TO TWO HARBORS MN-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON  
THROUGH LATE TONIGHT...  
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY  
EVENING...  
   
TODAY
 
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS.  
PARTLY SUNNY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET LATE IN  
THE AFTERNOON.    
TONIGHT
 
EAST WIND 20 TO 25 KNOTS. GUSTS UP TO 25 KNOTS  
INCREASING TO 30 KNOTS EARLY IN THE MORNING. CHANCE OF SNOW IN  
THE EVENING, THEN SNOW AFTER MIDNIGHT. WAVES 4 TO 6 FEET BUILDING  
TO 5 TO 8 FEET EARLY IN THE MORNING. WAVES OCCASIONALLY TO  
10 FEET.    
WEDNESDAY
 
EAST WIND 20 TO 25 KNOTS WITH GALES TO AROUND  
35 KNOTS. SNOW THROUGH THE DAY. RAIN IN THE AFTERNOON. WAVES 8 TO  
11 FEET. WAVES OCCASIONALLY TO 15 FEET.    
WEDNESDAY NIGHT
 
NORTHEAST WIND 15 TO 20 KNOTS WITH GALES TO  
AROUND 35 KNOTS BECOMING NORTHWEST 10 TO 15 KNOTS WITH GUSTS TO  
AROUND 25 KNOTS AFTER MIDNIGHT. RAIN IN THE EVENING. SNOW LIKELY  
THROUGH THE NIGHT. WAVES 7 TO 10 FEET SUBSIDING TO 3 TO 5 FEET.  
WAVES OCCASIONALLY TO 13 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ144-011615-  
TWO HARBORS TO DULUTH MN-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON  
THROUGH LATE TONIGHT...  
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY  
EVENING...  
   
TODAY
 
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS.  
SLIGHT CHANCE OF SNOW LATE IN THE AFTERNOON. WAVES 1 TO 2 FEET  
BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.    
TONIGHT
 
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS  
EASING TO 5 TO 15 KNOTS WITH GUSTS TO AROUND 25 KNOTS LATE IN THE  
EVENING, THEN RISING TO 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS AFTER MIDNIGHT. SNOW LIKELY AND SLIGHT CHANCE OF RAIN IN  
THE EVENING, THEN SNOW AFTER MIDNIGHT. WAVES 4 TO 6 FEET. WAVES  
OCCASIONALLY TO 7 FEET.    
WEDNESDAY
 
EAST WIND 20 TO 25 KNOTS. GUSTS UP TO 30 KNOTS  
INCREASING TO 35 KNOTS IN THE LATE MORNING AND EARLY AFTERNOON,  
THEN DECREASING TO 30 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE  
OF RAIN IN THE MORNING. SNOW THROUGH THE DAY. RAIN IN THE  
AFTERNOON. WAVES 5 TO 8 FEET. WAVES OCCASIONALLY TO 11 FEET.    
WEDNESDAY NIGHT
 
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO  
AROUND 25 KNOTS BECOMING WEST AFTER MIDNIGHT. RAIN WITH SNOW  
LIKELY IN THE EVENING, THEN CHANCE OF SNOW AND RAIN LIKELY AFTER  
MIDNIGHT. WAVES 5 TO 8 FEET SUBSIDING TO 3 TO 5 FEET AFTER  
MIDNIGHT. WAVES OCCASIONALLY TO 10 FEET. A SMALL CRAFT ADVISORY  
MAY BE NEEDED.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ145-011615-  
DULUTH MN TO PORT WING WI-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  
WEDNESDAY EVENING...  
   
TODAY
 
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN THE  
AFTERNOON. SLIGHT CHANCE OF SNOW LATE IN THE AFTERNOON. WAVES  
1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.    
TONIGHT
 
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS. CHANCE OF SNOW AND RAIN IN THE EVENING, THEN SNOW AFTER  
MIDNIGHT. WAVES 3 TO 5 FEET. WAVES OCCASIONALLY TO 7 FEET.    
WEDNESDAY
 
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS. RAIN AND SNOW. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO  
9 FEET.    
WEDNESDAY NIGHT
 
NORTHEAST WIND 15 TO 20 KNOTS WITH GUSTS TO  
AROUND 25 KNOTS BECOMING WEST WITH GUSTS TO AROUND 25 KNOTS AFTER  
MIDNIGHT. RAIN WITH SNOW LIKELY IN THE EVENING, THEN CHANCE OF  
SNOW AND RAIN LIKELY AFTER MIDNIGHT. WAVES 4 TO 6 FEET SUBSIDING  
TO 2 TO 4 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY TO 8 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ146-011615-  
PORT WING TO SAND ISLAND WI-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  
WEDNESDAY EVENING...  
   
TODAY
 
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS LATE IN  
THE AFTERNOON. PARTLY SUNNY. WAVES 1 TO 2 FEET BUILDING TO 1 TO  
3 FEET LATE IN THE AFTERNOON.    
TONIGHT
 
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS. CHANCE OF SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. WAVES 3 TO 5 FEET.    
WEDNESDAY
 
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS. RAIN AND SNOW. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO  
9 FEET.    
WEDNESDAY NIGHT
 
NORTHEAST WIND 15 TO 20 KNOTS BECOMING WEST  
10 TO 15 KNOTS AFTER MIDNIGHT. GUSTS UP TO 25 KNOTS. RAIN IN THE  
EVENING. SNOW LIKELY THROUGH THE NIGHT. RAIN LIKELY AFTER  
MIDNIGHT. WAVES 4 TO 6 FEET SUBSIDING TO 2 TO 4 FEET AFTER  
MIDNIGHT. WAVES OCCASIONALLY TO 8 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ147-011615-  
SAND ISLAND TO BAYFIELD WI-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  
WEDNESDAY EVENING...  
   
TODAY
 
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS LATE IN  
THE AFTERNOON. MOSTLY SUNNY UNTIL LATE AFTERNOON THEN BECOMING  
MOSTLY CLOUDY. WAVES 1 TO 2 FEET BUILDING TO 1 TO 3 FEET LATE IN  
THE AFTERNOON.    
TONIGHT
 
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS. CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN IN THE  
EVENING, THEN SNOW AFTER MIDNIGHT. WAVES 3 TO 5 FEET.    
WEDNESDAY
 
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS. RAIN AND SNOW. WAVES 4 TO 7 FEET. WAVES OCCASIONALLY TO  
9 FEET.    
WEDNESDAY NIGHT
 
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND  
25 KNOTS BECOMING WEST 10 TO 15 KNOTS WITH GUSTS TO AROUND  
25 KNOTS AFTER MIDNIGHT. RAIN WITH SNOW LIKELY IN THE EVENING,  
THEN CHANCE OF SNOW AND RAIN AFTER MIDNIGHT. WAVES 4 TO 6 FEET.  
WAVES OCCASIONALLY TO 7 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ150-011615-  
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON  
THROUGH LATE TONIGHT...  
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY  
EVENING...  
   
TODAY
 
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND 25 KNOTS.  
MOSTLY SUNNY UNTIL LATE AFTERNOON THEN BECOMING MOSTLY CLOUDY.  
WAVES 1 TO 2 FEET BUILDING TO 2 TO 4 FEET LATE IN THE AFTERNOON.    
TONIGHT
 
EAST WIND 20 TO 25 KNOTS. GUSTS UP TO 25 KNOTS  
INCREASING TO 30 KNOTS AFTER MIDNIGHT. CHANCE OF SNOW AND SLIGHT  
CHANCE OF RAIN IN THE EVENING, THEN SNOW LIKELY AFTER MIDNIGHT.  
WAVES 3 TO 5 FEET BUILDING TO 4 TO 7 FEET EARLY IN THE MORNING.  
WAVES OCCASIONALLY TO 9 FEET.    
WEDNESDAY
 
EAST WIND UP TO 30 KNOTS. GUSTS UP TO 35 KNOTS  
DECREASING TO 30 KNOTS LATE IN THE AFTERNOON. SLIGHT CHANCE OF  
RAIN IN THE MORNING. SNOW THROUGH THE DAY. RAIN IN THE AFTERNOON.  
WAVES 6 TO 9 FEET. WAVES OCCASIONALLY TO 12 FEET.    
WEDNESDAY NIGHT
 
EAST WIND 15 TO 20 KNOTS WITH GUSTS TO AROUND  
25 KNOTS BECOMING SOUTHEAST 10 TO 15 KNOTS WITH GUSTS TO AROUND  
20 KNOTS LATE IN THE EVENING, THEN BECOMING WEST 15 TO 20 KNOTS  
WITH GUSTS TO AROUND 25 KNOTS AFTER MIDNIGHT. RAIN WITH SNOW  
LIKELY IN THE EVENING, THEN CHANCE OF SNOW AND RAIN AFTER  
MIDNIGHT. WAVES 5 TO 8 FEET SUBSIDING TO 3 TO 5 FEET AFTER  
MIDNIGHT. WAVES OCCASIONALLY TO 10 FEET. A SMALL CRAFT ADVISORY  
MAY BE NEEDED.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ121-011615-  
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  
WEDNESDAY EVENING...  
   
TODAY
 
EAST WIND 10 TO 15 KNOTS. MOSTLY SUNNY UNTIL LATE  
AFTERNOON THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.    
TONIGHT
 
EAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS  
INCREASING TO 25 KNOTS EARLY IN THE MORNING. CHANCE OF RAIN IN  
THE EVENING. SNOW LIKELY THROUGH THE NIGHT. SLIGHT CHANCE OF RAIN  
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.    
WEDNESDAY
 
EAST WIND 20 TO 25 KNOTS. GUSTS UP TO 25 KNOTS  
INCREASING TO 30 KNOTS IN THE LATE MORNING AND AFTERNOON. RAIN  
AND SNOW. WAVES 1 TO 3 FEET.    
WEDNESDAY NIGHT
 
EAST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST  
LATE IN THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT. GUSTS UP  
TO 20 KNOTS. RAIN IN THE EVENING, THEN CHANCE OF RAIN AND SNOW  
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
LSZ148-011615-  
OAK POINT TO SAXON HARBOR WI-  
602 AM CDT TUE APR 1 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  
WEDNESDAY EVENING...  
   
TODAY
 
SOUTHEAST WIND 5 KNOTS BECOMING EAST 10 TO 15 KNOTS WITH  
GUSTS TO AROUND 20 KNOTS IN THE AFTERNOON. MOSTLY SUNNY UNTIL  
LATE AFTERNOON THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FEET.    
TONIGHT
 
EAST WIND 15 TO 20 KNOTS. GUSTS UP TO 20 KNOTS  
INCREASING TO 25 KNOTS IN THE LATE EVENING AND OVERNIGHT. CHANCE  
OF SNOW AND RAIN IN THE EVENING, THEN SNOW AND SLIGHT CHANCE OF  
RAIN AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET  
AFTER MIDNIGHT.    
WEDNESDAY
 
EAST WIND 20 TO 25 KNOTS WITH GUSTS TO AROUND  
30 KNOTS. SNOW IN THE MORNING. RAIN THROUGH THE DAY. SLIGHT  
CHANCE OF SNOW IN THE AFTERNOON. WAVES 3 TO 5 FEET BUILDING TO  
4 TO 7 FEET IN THE AFTERNOON. WAVES OCCASIONALLY TO 9 FEET.    
WEDNESDAY NIGHT
 
EAST WIND 10 TO 15 KNOTS BECOMING SOUTHWEST  
LATE IN THE EVENING, THEN BECOMING WEST AFTER MIDNIGHT. GUSTS UP  
TO 20 KNOTS. CHANCE OF RAIN THROUGH THE NIGHT. CHANCE OF SNOW  
AFTER MIDNIGHT. WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 3 FEET IN THE  
LATE EVENING AND OVERNIGHT. WAVES OCCASIONALLY TO 7 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 

 
 
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:  
WEATHER.GOV/GREATLAKES  
 
KML  
 
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