Forecast for Lake Superior

000
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