935  
FZUS53 KDLH 130239  
NSHDLH  
 
NEARSHORE MARINE FORECAST  
NATIONAL WEATHER SERVICE DULUTH MN  
939 PM CDT MON APR 12 2021  
 
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.  
 
LSZ140-141-131015-  
GRAND PORTAGE TO GRAND MARAIS MN-  
GRAND MARAIS TO TACONITE HARBOR MN-  
939 PM CDT MON APR 12 2021  
   
REST OF TONIGHT
 
EAST WIND 5 TO 10 KNOTS BECOMING SOUTHWEST  
AFTER MIDNIGHT. PATCHY FOG LATE IN THE EVENING, THEN AREAS OF  
DENSE FOG AFTER MIDNIGHT. RAIN LIKELY LATE IN THE EVENING, THEN  
CHANCE OF RAIN AFTER MIDNIGHT. SLIGHT CHANCE OF SNOW TOWARD  
DAYBREAK. WAVES 2 FEET OR LESS.    
TUESDAY
 
SOUTHWEST WIND 10 TO 15 KNOTS. PATCHY DENSE FOG IN THE  
MORNING. CHANCE OF SNOW SHOWERS IN THE MORNING. CHANCE OF RAIN  
SHOWERS THROUGH THE DAY. WAVES 2 TO 4 FEET.   
TUESDAY NIGHT
 
SOUTHWEST WIND 5 KNOTS BECOMING NORTHWEST IN THE  
LATE EVENING AND OVERNIGHT. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
EVENING, THEN SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT.  
WAVES 1 TO 3 FEET SUBSIDING TO 2 FEET OR LESS IN THE LATE EVENING  
AND OVERNIGHT.    
WEDNESDAY
 
NORTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN  
THROUGH THE DAY. WAVES 2 FEET OR LESS.  
 

 
 
LSZ142-143-131015-  
TACONITE HARBOR TO SILVER BAY HARBOR MN-  
SILVER BAY HARBOR TO TWO HARBORS MN-  
939 PM CDT MON APR 12 2021  
   
REST OF TONIGHT
 
SOUTHEAST WIND 5 KNOTS BECOMING SOUTHWEST  
10 TO 15 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH THE NIGHT.  
CHANCE OF RAIN THROUGH THE NIGHT. SLIGHT CHANCE OF SNOW AFTER  
MIDNIGHT, THEN CHANCE OF SNOW TOWARD DAYBREAK. WAVES 1 TO 3 FEET.   
TUESDAY
 
SOUTHWEST WIND 10 TO 15 KNOTS. CHANCE OF SNOW SHOWERS  
IN THE MORNING. CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT  
CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES 1 TO 3 FEET.    
TUESDAY NIGHT
 
SOUTH WIND 5 TO 10 KNOTS BECOMING SOUTHEAST LATE  
IN THE EVENING, THEN BECOMING NORTH AFTER MIDNIGHT BECOMING NORTH  
5 KNOTS EARLY IN THE MORNING. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF SNOW SHOWERS IN THE EVENING, THEN SLIGHT CHANCE OF RAIN  
AND SNOW AFTER MIDNIGHT. WAVES 2 FEET OR LESS.    
WEDNESDAY
 
NORTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN  
THROUGH THE DAY. WAVES 2 FEET OR LESS.  
 

 
 
LSZ144-145-131015-  
TWO HARBORS TO DULUTH MN-DULUTH MN TO PORT WING WI-  
939 PM CDT MON APR 12 2021  
   
REST OF TONIGHT
 
SOUTHWEST WIND 10 TO 15 KNOTS. PATCHY FOG LATE  
IN THE EVENING. CHANCE OF RAIN THROUGH THE NIGHT. CHANCE OF SNOW  
TOWARD DAYBREAK. WAVES 1 TO 3 FEET.    
TUESDAY
 
SOUTHWEST WIND 10 TO 15 KNOTS. CHANCE OF RAIN SHOWERS  
AND SNOW SHOWERS. WAVES 1 TO 3 FEET.    
TUESDAY NIGHT
 
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING NORTHWEST  
AFTER MIDNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING, THEN  
SLIGHT CHANCE OF RAIN SHOWERS AND SNOW AFTER MIDNIGHT. WAVES  
2 FEET OR LESS.   
WEDNESDAY
 
NORTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF RAIN  
THROUGH THE DAY. WAVES 2 FEET OR LESS.  
 

 
 
LSZ146-147-131015-  
PORT WING TO SAND ISLAND WI-SAND ISLAND TO BAYFIELD WI-  
939 PM CDT MON APR 12 2021  
   
REST OF TONIGHT
 
SOUTHWEST WIND 10 TO 15 KNOTS. CHANCE OF RAIN  
THROUGH THE NIGHT. CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO  
3 FEET BUILDING TO 2 TO 4 FEET TOWARD DAYBREAK.   
TUESDAY
 
SOUTHWEST WIND 15 TO 20 KNOTS EASING TO 5 TO 10 KNOTS  
LATE IN THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS.  
WAVES 2 TO 4 FEET SUBSIDING TO 2 FEET OR LESS LATE IN THE  
AFTERNOON. A SMALL CRAFT ADVISORY MAY BE NEEDED.    
TUESDAY NIGHT
 
SOUTHWEST WIND 5 TO 10 KNOTS BECOMING SOUTH LATE  
IN THE EVENING, THEN BECOMING NORTHWEST AFTER MIDNIGHT. SLIGHT  
CHANCE OF RAIN SHOWERS AND SNOW SHOWERS IN THE EVENING, THEN  
SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. WAVES 2 FEET OR  
LESS.    
WEDNESDAY
 
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE  
AFTERNOON. SLIGHT CHANCE OF SNOW IN THE MORNING. SLIGHT CHANCE OF  
RAIN THROUGH THE DAY. WAVES 2 FEET OR LESS.  
 

 
 
LSZ150-131015-  
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND-  
939 PM CDT MON APR 12 2021  
   
REST OF TONIGHT
 
SOUTHWEST WIND 10 TO 15 KNOTS. PATCHY FOG LATE  
IN THE EVENING. CHANCE OF RAIN THROUGH THE NIGHT. CHANCE OF SNOW  
AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET TOWARD  
DAYBREAK.    
TUESDAY
 
SOUTHWEST WIND 15 TO 20 KNOTS EASING TO 5 TO 10 KNOTS  
LATE IN THE AFTERNOON. CHANCE OF RAIN AND SNOW IN THE MORNING,  
THEN CHANCE OF RAIN SHOWERS AND SNOW SHOWERS IN THE AFTERNOON.  
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET LATE IN THE AFTERNOON.  
A SMALL CRAFT ADVISORY MAY BE NEEDED.    
TUESDAY NIGHT
 
SOUTH WIND 5 KNOTS BECOMING NORTHWEST AFTER  
MIDNIGHT. SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING. SLIGHT  
CHANCE OF SNOW SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF RAIN  
AFTER MIDNIGHT. WAVES 2 FEET OR LESS.    
WEDNESDAY
 
NORTHWEST WIND 5 TO 10 KNOTS BECOMING NORTH IN THE  
AFTERNOON. SLIGHT CHANCE OF SNOW IN THE MORNING. SLIGHT CHANCE OF  
RAIN THROUGH THE DAY. WAVES 2 FEET OR LESS.  
 

 
 
LSZ121-148-131015-  
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI-  
OAK POINT TO SAXON HARBOR WI-  
939 PM CDT MON APR 12 2021  
   
REST OF TONIGHT
 
SOUTH WIND 5 KNOTS BECOMING SOUTHWEST AFTER  
MIDNIGHT. PATCHY FOG LATE IN THE EVENING. CHANCE OF RAIN THROUGH  
THE NIGHT. CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 3 FEET.    
TUESDAY
 
SOUTHWEST WIND 10 TO 15 KNOTS. CHANCE OF RAIN AND  
SLIGHT CHANCE OF SNOW SHOWERS IN THE MORNING, THEN CHANCE OF RAIN  
SHOWERS AND SNOW SHOWERS IN THE AFTERNOON. WAVES 2 FEET OR LESS.    
TUESDAY NIGHT
 
SOUTH WIND 5 KNOTS BECOMING NORTHWEST AFTER  
MIDNIGHT. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF SNOW  
SHOWERS IN THE EVENING, THEN SLIGHT CHANCE OF RAIN AND SNOW AFTER  
MIDNIGHT. WAVES 2 FEET OR LESS.    
WEDNESDAY
 
NORTH WIND 5 TO 10 KNOTS. SLIGHT CHANCE OF SNOW IN  
THE MORNING. SLIGHT CHANCE OF RAIN THROUGH THE DAY. WAVES 2 FEET  
OR LESS.  
 

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