317  
FZUS63 KMQT 240153 CCA  
GLFLS  
 
OPEN LAKE FORECAST FOR LAKE SUPERIOR...CORRECTED  
NATIONAL WEATHER SERVICE MARQUETTE MI  
953 PM EDT THU MAR 23 2017  
 
FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR  
   
SYNOPSIS
 
A 29.9 INCH TROUGH WILL MOVE ACROSS THE UPPER GREAT  
LAKES TONIGHT INTO FRIDAY MORNING. FRIDAY AFTERNOON...A 29.5 INCH  
LOW WILL MOVE INTO THE CENTRAL PLAINS AS 30.5 INCH HIGH PRESSURE  
BUILDS OVER NORTHERN ONTARIO. THE HIGH WILL BUILD TO 30.6 INCHES OVER  
JAMES BAY SATURDAY AFTERNOON AS THE LOW WEAKENS TO 29.7 INCHES OVER  
WESTERN ILLINOIS. HIGH PRESSURE WILL MOVE TO NEW ENGLAND SATURDAY  
NIGHT AND SUNDAY WHILE THE LOW OVER ILLINOIS FURTHER WEAKENS. A 29.7  
INCH TROUGH WILL THEN MOVE THROUGH THE EASTERN GREAT LAKES MONDAY  
NIGHT AND TUESDAY AS A 30.2 INCH RIDGE BUILDS OVER THE WESTERN GREAT  
LAKES TUESDAY.  
 
LSZ162-241400-  
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND  
PORTAGE MN BEYOND 5NM-  
953 PM EDT THU MAR 23 2017 /853 PM CDT THU MAR 23 2017/  
   
REST OF TONIGHT
 
SOUTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST  
LESS THAN 10 KNOTS AFTER MIDNIGHT. RAIN LIKELY. A CHANCE OF SNOW  
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.    
FRIDAY
 
NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO  
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY  
AFTERNOON. WAVES CALM TO 2 FEET.    
FRIDAY NIGHT
 
NORTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST  
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.    
SATURDAY
 
EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO  
25 KNOTS BY MID AFTERNOON. WAVES 3 TO 6 FEET.    
SATURDAY NIGHT
 
EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.    
SUNDAY
 
EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST BY MID  
AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET...  
THEN BUILDING TO 1 TO 3 FEET.    
SUNDAY NIGHT
 
NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH  
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN...POSSIBLY MIXED  
WITH SLEET. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES SUBSIDING TO  
CALM TO 2 FEET.    
MONDAY
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST. WAVES  
CALM TO 2 FEET.  
 

 
 
LSZ263-241400-  
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-  
953 PM EDT THU MAR 23 2017  
   
REST OF TONIGHT
 
SOUTH WINDS 5 TO 15 KNOTS VEERING WEST AFTER  
MIDNIGHT. RAIN...POSSIBLY MIXED WITH SNOW. WAVES 1 TO 3 FEET  
SUBSIDING TO CALM TO 2 FEET.    
FRIDAY
 
NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO  
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY  
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.    
FRIDAY NIGHT
 
NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST AFTER  
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.    
SATURDAY
 
EAST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 3 TO  
5 FEET.    
SATURDAY NIGHT
 
EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO  
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.    
SUNDAY
 
EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID  
AFTERNOON. A CHANCE OF FREEZING RAIN THROUGH EARLY AFTERNOON. A  
CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.    
SUNDAY NIGHT
 
NORTHEAST WINDS 5 TO 15 KNOTS. RAIN LIKELY  
THROUGH MIDNIGHT. A CHANCE OF RAIN...POSSIBLY MIXED WITH SNOW  
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.    
MONDAY
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ264-241400-  
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU  
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-  
953 PM EDT THU MAR 23 2017  
   
REST OF TONIGHT
 
SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST  
5 TO 15 KNOTS AFTER MIDNIGHT. RAIN LIKELY THROUGH MIDNIGHT...THEN  
A CHANCE OF RAIN. SNOW. WAVES 3 TO 6 FEET SUBSIDING TO 1 TO 3  
FEET.    
FRIDAY
 
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 15 TO  
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY  
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO  
2 TO 4 FEET.    
FRIDAY NIGHT
 
NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST AFTER  
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.    
SATURDAY
 
EAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 2 TO  
4 FEET.    
SATURDAY NIGHT
 
EAST WINDS 10 TO 20 KNOTS. WAVES 2 TO 4 FEET.    
SUNDAY
 
EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS  
BY MID AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO 1 TO  
3 FEET.    
SUNDAY NIGHT
 
NORTHEAST WINDS 5 TO 15 KNOTS. RAIN LIKELY. SNOW  
LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.    
MONDAY
 
NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN AND SNOW.  
WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ265-241400-  
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI  
BEYOND 5NM FROM SHORE-  
953 PM EDT THU MAR 23 2017  
   
REST OF TONIGHT
 
SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO  
15 KNOTS AFTER MIDNIGHT. RAIN...POSSIBLY MIXED WITH FREEZING  
RAIN AND SNOW. WAVES 3 TO 5 FEET SUBSIDING TO CALM TO 2 FEET.    
FRIDAY
 
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO  
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN THROUGH EARLY  
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.    
FRIDAY NIGHT
 
NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST AFTER  
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.    
SATURDAY
 
EAST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 2 TO  
4 FEET.    
SATURDAY NIGHT
 
EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN AND  
FREEZING RAIN. WAVES 2 TO 4 FEET.    
SUNDAY
 
EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS  
BY MID AFTERNOON. A CHANCE OF RAIN AND FREEZING RAIN. WAVES  
SUBSIDING TO CALM TO 2 FEET.    
SUNDAY NIGHT
 
NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH  
AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.    
MONDAY
 
NORTHWEST WINDS 10 TO 20 KNOTS. RAIN LIKELY IN THE  
MORNING...THEN A CHANCE OF RAIN. A CHANCE OF SNOW. WAVES CALM TO  
2 FEET.   
TUESDAY
 
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS. WAVES CALM TO 2 FEET.  
 

 
 
LSZ266-241400-  
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-  
953 PM EDT THU MAR 23 2017  
   
REST OF TONIGHT
 
SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO  
10 TO 20 KNOTS AFTER MIDNIGHT. RAIN...POSSIBLY MIXED WITH FREEZING  
RAIN AND SNOW. WAVES 4 TO 7 FEET SUBSIDING TO 1 TO 3 FEET.    
FRIDAY
 
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 15 TO  
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO  
CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.    
FRIDAY NIGHT
 
NORTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST  
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.    
SATURDAY
 
EAST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 2 TO  
4 FEET.    
SATURDAY NIGHT
 
EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN. A  
CHANCE OF FREEZING RAIN AFTER MIDNIGHT. WAVES 2 TO 4 FEET.    
SUNDAY
 
EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS  
BY MID AFTERNOON. A CHANCE OF RAIN AND FREEZING RAIN. WAVES  
SUBSIDING TO CALM TO 2 FEET.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO  
15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.    
MONDAY
 
NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO  
25 KNOTS. RAIN LIKELY IN THE MORNING...THEN A CHANCE OF RAIN. A  
CHANCE OF SNOW. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 1 TO  
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.  
 

 
 
LSZ267-241400-  
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF  
SHORE TO THE US/CANADIAN BORDER-  
953 PM EDT THU MAR 23 2017  
   
REST OF TONIGHT
 
SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO  
10 TO 20 KNOTS AFTER MIDNIGHT. RAIN...POSSIBLY MIXED WITH FREEZING  
RAIN AND SNOW. WAVES 3 TO 5 FEET SUBSIDING TO CALM TO 2 FEET.    
FRIDAY
 
WEST WINDS 5 TO 15 KNOTS VEERING NORTH BY MID  
AFTERNOON. A CHANCE OF FREEZING RAIN THROUGH EARLY AFTERNOON. A  
CHANCE OF RAIN. WAVES CALM TO 2 FEET.    
FRIDAY NIGHT
 
NORTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO  
3 TO 5 FEET.    
SATURDAY
 
EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO  
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.    
SATURDAY NIGHT
 
EAST WINDS 15 TO 25 KNOTS. A CHANCE OF SLEET. A  
CHANCE OF FREEZING RAIN AFTER MIDNIGHT. WAVES BUILDING TO 1 TO  
3 FEET.    
SUNDAY
 
EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS  
BY MID AFTERNOON. FREEZING RAIN...POSSIBLY MIXED WITH RAIN  
THROUGH EARLY AFTERNOON...THEN A CHANCE OF RAIN BY MID AFTERNOON.  
WAVES SUBSIDING TO CALM TO 2 FEET.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO  
15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.    
MONDAY
 
NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.  
A CHANCE OF RAIN. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.    
TUESDAY
 
NORTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 1 TO  
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.  
 

 
LSZ261-241400-  
MAFOR 2403/  
SUPERIOR WEST 11416 11507 12700 11810 11110 11120 11130. CHANCE  
OF RAIN AND SNOW THROUGH MID MORNING FRIDAY. WAVES CALM TO 4 FEET.  
 
SUPERIOR NORTH CENTRAL 11437 11427 11507 11610 11810 11820 11130  
11140. CHANCE OF RAIN AND SNOW THROUGH MID MORNING FRIDAY. WAVES  
1 TO 5 FEET1.  
 
SUPERIOR SOUTH CENTRAL 11436 11427 11506 11600 11710 11810 11820  
11130. CHANCE OF LIGHT FREEZING RAIN THROUGH MIDNIGHT. CHANCE OF  
RAIN FRIDAY. WAVES 1 TO 5 FEET.  
 
SUPERIOR EAST 11447 11427 11417 11510 11710 11810 11820 11130.  
CHANCE OF LIGHT FREEZING RAIN OVERNIGHT. CHANCE OF RAIN FRIDAY.  
WAVES 1 TO 6 FEET.  
 

 
 
KEC  
 
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