891  
FZUS53 KDLH 120624  
NSHDLH  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE DULUTH MN  
124 AM CDT SUN APR 12 2026  
 
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.  
 
LSZ140-121600-  
GRAND PORTAGE TO GRAND MARAIS MN-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
SOUTHEAST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND  
20 KNOTS BECOMING EAST 5 KNOTS LATE IN THE AFTERNOON. CHANCE OF  
RAIN SHOWERS UNTIL LATE AFTERNOON. CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. RAIN SHOWERS LIKELY LATE IN THE AFTERNOON. WAVES 2 TO  
4 FEET SUBSIDING TO 1 TO 3 FEET IN THE AFTERNOON.    
TONIGHT  
SOUTH WIND 5 TO 10 KNOTS BECOMING WEST IN THE LATE  
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES  
1 TO 2 FEET.    
MONDAY  
NORTHWEST WIND 5 TO 10 KNOTS BECOMING EAST IN THE  
AFTERNOON. PARTLY SUNNY. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO  
20 KNOTS IN THE LATE EVENING AND OVERNIGHT. RAIN SHOWERS LIKELY  
IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES  
1 TO 3 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ141-121600-  
GRAND MARAIS TO TACONITE HARBOR MN-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
EAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS UNTIL  
LATE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE  
AFTERNOON, THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS  
LATE IN THE AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT  
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST IN THE LATE  
EVENING AND OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
EVENING. WAVES 1 TO 2 FEET.    
MONDAY  
NORTHWEST WIND 5 KNOTS BECOMING EAST IN THE AFTERNOON.  
PARTLY SUNNY. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO  
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. RAIN SHOWERS  
LIKELY IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE  
NIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ142-121600-  
TACONITE HARBOR TO SILVER BAY HARBOR MN-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS  
UNTIL LATE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE  
AFTERNOON, THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS  
LATE IN THE AFTERNOON. WAVES 1 TO 3 FEET.    
TONIGHT  
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST AFTER  
MIDNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.  
WAVES 1 FOOT OR LESS.    
MONDAY  
WEST WIND 5 KNOTS BECOMING NORTHWEST LATE IN THE  
MORNING, THEN BECOMING NORTHEAST IN THE AFTERNOON. SLIGHT CHANCE  
OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 5 TO 10 KNOTS. GUSTS UP TO  
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. RAIN SHOWERS  
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ143-121600-  
SILVER BAY HARBOR TO TWO HARBORS MN-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS  
UNTIL LATE AFTERNOON, THEN RAIN SHOWERS LIKELY AND CHANCE OF  
THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO 2 FEET.    
TONIGHT  
WEST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.    
MONDAY  
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.  
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO  
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. RAIN SHOWERS  
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO 2 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ144-121600-  
TWO HARBORS TO DULUTH MN-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
NORTHEAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS  
THROUGH THE DAY. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE  
AFTERNOON, THEN CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.  
WAVES 1 TO 2 FEET.    
TONIGHT  
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN  
THE MORNING. CHANCE OF THUNDERSTORMS AND SLIGHT CHANCE OF RAIN  
SHOWERS IN THE EVENING. WAVES 1 FOOT OR LESS.    
MONDAY  
NORTHWEST WIND 5 KNOTS BECOMING NORTH LATE IN THE  
MORNING, THEN BECOMING NORTHEAST 10 TO 15 KNOTS IN THE AFTERNOON.  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO  
20 KNOTS UNTIL EARLY MORNING. CHANCE OF THUNDERSTORMS IN THE  
EVENING. RAIN SHOWERS LIKELY THROUGH THE NIGHT. WAVES 1 TO  
3 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ145-121600-  
DULUTH MN TO PORT WING WI-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
EAST WIND 5 TO 10 KNOTS. CHANCE OF RAIN SHOWERS THROUGH  
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE AFTERNOON,  
THEN CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO  
2 FEET.    
TONIGHT  
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN  
THE MORNING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
EVENING. WAVES 1 FOOT OR LESS.    
MONDAY  
NORTHWEST WIND 5 KNOTS BECOMING NORTH LATE IN THE  
MORNING, THEN BECOMING NORTHEAST 10 TO 15 KNOTS IN THE AFTERNOON.  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO  
20 KNOTS UNTIL EARLY MORNING. CHANCE OF THUNDERSTORMS IN THE  
EVENING. RAIN SHOWERS LIKELY THROUGH THE NIGHT. WAVES 1 TO 2 FEET  
BUILDING TO 1 TO 3 FEET AFTER MIDNIGHT.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ146-121600-  
PORT WING TO SAND ISLAND WI-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
EAST WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL LATE AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH THE DAY.  
CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 FOOT OR  
LESS.    
TONIGHT  
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING WEST EARLY IN  
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.  
WAVES 1 FOOT OR LESS.    
MONDAY  
WEST WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO  
20 KNOTS IN THE LATE EVENING AND EARLY MORNING. CHANCE OF  
THUNDERSTORMS IN THE EVENING. RAIN SHOWERS LIKELY THROUGH THE  
NIGHT. SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO  
3 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ147-121600-  
SAND ISLAND TO BAYFIELD WI-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
SOUTHEAST WIND 10 TO 15 KNOTS. GUSTS UP TO 20 KNOTS IN  
THE AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 FOOT  
OR LESS.    
TONIGHT  
WEST WIND 5 TO 10 KNOTS. CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING. WAVES 1 FOOT OR LESS.    
MONDAY  
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE  
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES  
1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 KNOTS RISING TO 10 TO 15 KNOTS  
WITH GUSTS TO AROUND 20 KNOTS IN THE LATE EVENING AND OVERNIGHT.  
CHANCE OF THUNDERSTORMS AND SLIGHT CHANCE OF RAIN SHOWERS IN THE  
EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ150-121600-  
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
SOUTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND  
20 KNOTS BECOMING SOUTH 10 TO 15 KNOTS WITH GUSTS TO AROUND  
20 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS.  
WAVES 1 TO 2 FEET.    
TONIGHT  
WEST WIND 10 TO 15 KNOTS EASING TO 10 KNOTS EARLY IN  
THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.  
WAVES 1 TO 2 FEET.    
MONDAY  
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHEAST IN THE  
AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES  
1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 15 TO 20 KNOTS. SLIGHT CHANCE OF  
RAIN SHOWERS IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS  
THROUGH THE NIGHT. CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES  
1 TO 2 FEET BUILDING TO 1 TO 3 FEET AFTER MIDNIGHT.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
LSZ148-121600-  
OAK POINT TO SAXON HARBOR WI-  
124 AM CDT SUN APR 12 2026  
   
TODAY  
SOUTHEAST WIND 5 TO 10 KNOTS WITH GUSTS TO AROUND  
20 KNOTS BECOMING SOUTHWEST 10 TO 15 KNOTS WITH GUSTS TO AROUND  
25 KNOTS IN THE AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS  
EARLY IN THE MORNING, THEN SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE LATE MORNING AND EARLY AFTERNOON. CHANCE OF  
SHOWERS AND THUNDERSTORMS LATE IN THE AFTERNOON. WAVES 1 TO  
2 FEET.    
TONIGHT  
SOUTHWEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND  
20 KNOTS BECOMING WEST 5 TO 10 KNOTS AFTER MIDNIGHT. CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES 1 TO 2 FEET.    
MONDAY  
NORTH WIND 5 KNOTS BECOMING NORTHEAST IN THE AFTERNOON.  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WAVES 1 FOOT OR LESS.    
MONDAY NIGHT  
NORTHEAST WIND 10 TO 15 KNOTS. CHANCE OF  
THUNDERSTORMS IN THE EVENING. RAIN SHOWERS THROUGH THE NIGHT.  
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 2 FEET.  
 
NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.  
 
 
 
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:  
WEATHER.GOV/GREATLAKES  
 
WFO DLH  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MN Page
The Nexlab WI Page
Main Text Page