222
FZUS63 KMQT 112001
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
400 PM EDT WED MAR 11 2026
FOR WATERS BEYOND 5 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.
SYNOPSIS
A 29.5 INCH LOW IS LOCATED OVER SOUTHEAST ONTARIO THIS AFTERNOON,
WITH AN INVERTED TROUGH OF 29.9 INCHES EXTENDING BACK OVER LAKE
SUPERIOR. TRANSIENT HIGH PRESSURE OF 30.1 INCHES WILL CROSS THE LAKE
EARLY THURSDAY AS THE FIRST LOW MOVES INTO THE GULF OF SAINT
LAWRENCE AND ANOTHER 29.3 INCH LOW MOVES OVER NORTH DAKOTA.
THE DAKOTAS LOW DEEPENS TO 29.1 INCHES IN THE VICINITY OF NORTHERN
LAKE MICHIGAN FRIDAY MORNING, THEN MOVES OVER NEW ENGLAND AT 29.5
INCHES BY SATURDAY MORNING. A 30.2 INCH RIDGE WILL EXTEND OVER LAKE
SUPERIOR FROM CENTRAL CANADA ON SATURDAY AFTERNOON. A 29.3 INCH LOW
DEVELOPING OVER THE CENTRAL PLAINS SATURDAY NIGHT WILL TRACK TO NEAR
LAKE HURON AT 28.9 INCHES BY MONDAY MORNING. HIGH PRESSURE OF 30.4
INCHES WILL OVERSPREAD THE NORTHERN PLAINS ON MONDAY AND MOVE TO
LAKE SUPERIOR BY TUESDAY AS THE LOW DEPARTS INTO NORTHERN QUEBEC.
LSZ162-120800-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
400 PM EDT WED MAR 11 2026 /300 PM CDT WED MAR 11 2026/
...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...
LATE THIS AFTERNOON
NORTHWEST WINDS 15 TO 25 KNOTS. WAVES 1 TO
3 FEET.
TONIGHT
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES BUILDING TO 2 TO 4 FEET, THEN SUBSIDING TO CALM
TO 2 FEET.
THURSDAY
NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN THE
AFTERNOON, THEN BECOMING SOUTHEAST 15 TO 25 KNOTS LATE. A CHANCE
OF SNOW SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
THURSDAY NIGHT
EAST GALES TO 40 KNOTS BACKING NORTHEAST LATE.
A SLIGHT CHANCE OF RAIN THROUGH MIDNIGHT. SNOW. WAVES BUILDING TO
11 TO 15 FEET OCCASIONALLY TO 19 FEET.
FRIDAY
NORTH GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
6 TO 9 FEET OCCASIONALLY TO 11 FEET.
FRIDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
SATURDAY
WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
SATURDAY NIGHT
EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT.
WAVES BUILDING TO 2 TO 4 FEET.
SUNDAY
NORTHEAST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES TO
40 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET, THEN SUBSIDING
TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
MONDAY
NORTH GALES TO 35 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. HEAVY FREEZING SPRAY. WAVES SUBSIDING TO CALM TO
2 FEET.
LSZ263-120800-
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-
400 PM EDT WED MAR 11 2026
...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
AFTERNOON...
LATE THIS AFTERNOON
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES 2 TO
4 FEET.
TONIGHT
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS LATE. WAVES BUILDING TO 3 TO 6 FEET OCCASIONALLY TO
8 FEET, THEN SUBSIDING TO 2 TO 4 FEET.
THURSDAY
NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN THE
AFTERNOON, THEN BECOMING SOUTHEAST 15 TO 25 KNOTS LATE. A SLIGHT
CHANCE OF SNOW SHOWERS BY MID AFTERNOON. WAVES SUBSIDING TO CALM
TO 2 FEET, THEN BUILDING TO 2 TO 4 FEET.
THURSDAY NIGHT
SOUTHEAST GALES TO 35 KNOTS BECOMING EAST GALES
TO 40 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SNOW. WAVES BUILDING
TO 15 TO 20 FEET OCCASIONALLY TO 25 FEET.
FRIDAY
NORTH GALES TO 40 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY MID AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW. WAVES
SUBSIDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
FRIDAY NIGHT
NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. FREEZING SPRAY THROUGH MIDNIGHT.
WAVES SUBSIDING TO 2 TO 4 FEET.
SATURDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
SATURDAY NIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING
NORTHEAST 15 TO 25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
SUNDAY
NORTHEAST GALES TO 40 KNOTS BECOMING NORTH GALES TO
45 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 12 TO 17 FEET OCCASIONALLY TO 21 FEET.
MONDAY
NORTH GALES TO 45 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. HEAVY FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET.
LSZ264-120800-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
400 PM EDT WED MAR 11 2026
...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH LATE
FRIDAY NIGHT...
LATE THIS AFTERNOON
NORTH WINDS 20 TO 30 KNOTS. WAVES 3 TO
6 FEET OCCASIONALLY TO 8 FEET BUILDING TO 4 TO 7 FEET
OCCASIONALLY TO 9 FEET.
TONIGHT
NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT, THEN BECOMING NORTH 15 TO 25 KNOTS LATE. A SLIGHT
CHANCE OF SNOW. FREEZING SPRAY AFTER MIDNIGHT. WAVES BUILDING TO
5 TO 8 FEET OCCASIONALLY TO 10 FEET, THEN SUBSIDING TO 3 TO
6 FEET OCCASIONALLY TO 8 FEET.
THURSDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS IN THE AFTERNOON, THEN BECOMING SOUTHEAST 10 TO 20 KNOTS
LATE. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH EARLY AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET.
THURSDAY NIGHT
SOUTHEAST GALES TO 45 KNOTS BACKING EAST LATE.
FREEZING SPRAY. A CHANCE OF SNOW THROUGH MIDNIGHT. SNOW LIKELY
AFTER MIDNIGHT. WAVES BUILDING TO 15 TO 20 FEET OCCASIONALLY TO
25 FEET.
FRIDAY
NORTHEAST GALES TO 45 KNOTS BECOMING NORTH GALES TO
35 KNOTS BY MID AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW.
WAVES SUBSIDING TO 9 TO 12 FEET OCCASIONALLY TO 15 FEET.
FRIDAY NIGHT
NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY THROUGH MIDNIGHT. WAVES
SUBSIDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SATURDAY
WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING
NORTHEAST 15 TO 25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SUNDAY
NORTHEAST GALES TO 35 KNOTS BECOMING NORTH STORM FORCE
WINDS TO 55 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 15 TO 20 FEET OCCASIONALLY TO 25 FEET.
MONDAY
NORTH STORM FORCE WINDS TO 55 KNOTS DIMINISHING TO
GALES TO 35 KNOTS. HEAVY FREEZING SPRAY. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
LSZ265-120800-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
400 PM EDT WED MAR 11 2026
...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH LATE
FRIDAY NIGHT...
LATE THIS AFTERNOON
NORTHWEST GALES TO 35 KNOTS. FREEZING
SPRAY. A SLIGHT CHANCE OF SNOW. WAVES 7 TO 10 FEET OCCASIONALLY
TO 13 FEET.
TONIGHT
NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS LATE. A SLIGHT CHANCE OF SNOW. FREEZING SPRAY AFTER
MIDNIGHT. WAVES SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
THURSDAY
NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON, THEN BECOMING SOUTHEAST 15 TO 25 KNOTS
LATE. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH EARLY AFTERNOON.
WAVES SUBSIDING TO 1 TO 3 FEET.
THURSDAY NIGHT
SOUTHEAST GALES TO 45 KNOTS BECOMING EAST GALES
TO 45 KNOTS WITH A FEW STORM FORCE GUSTS TO 50 KNOTS POSSIBLE
LATE. FREEZING SPRAY. SNOW LIKELY THROUGH MIDNIGHT. SNOW AFTER
MIDNIGHT. WAVES BUILDING TO 15 TO 20 FEET OCCASIONALLY TO
25 FEET.
FRIDAY
NORTHEAST GALES TO 45 KNOTS BECOMING NORTH GALES TO
40 KNOTS BY MID AFTERNOON. FREEZING SPRAY. SNOW LIKELY THROUGH
EARLY AFTERNOON. A CHANCE OF SNOW BY MID AFTERNOON. WAVES
SUBSIDING TO 12 TO 17 FEET OCCASIONALLY TO 21 FEET.
FRIDAY NIGHT
NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. WAVES SUBSIDING TO 5 TO
8 FEET OCCASIONALLY TO 10 FEET.
SATURDAY
WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT. WAVES
BUILDING TO 2 TO 4 FEET.
SUNDAY
EAST GALES TO 40 KNOTS BECOMING NORTH STORM FORCE WINDS
TO 55 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 20 TO 25 FEET OCCASIONALLY TO
31 FEET.
MONDAY
NORTH STORM FORCE WINDS TO 55 KNOTS BECOMING NORTHWEST
GALES TO 35 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
LSZ266-120800-
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-
400 PM EDT WED MAR 11 2026
...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH LATE
FRIDAY NIGHT...
LATE THIS AFTERNOON
NORTH GALES TO 35 KNOTS. FREEZING SPRAY.
SNOW LIKELY. WAVES 8 TO 11 FEET OCCASIONALLY TO 14 FEET BUILDING
TO 9 TO 12 FEET OCCASIONALLY TO 15 FEET.
TONIGHT
NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
LATE. FREEZING SPRAY. A CHANCE OF SNOW. WAVES BUILDING TO 10 TO
14 FEET OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 6 TO 9 FEET
OCCASIONALLY TO 11 FEET.
THURSDAY
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON, THEN VEERING SOUTH LATE. FREEZING
SPRAY THROUGH EARLY AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS
THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
THURSDAY NIGHT
SOUTHEAST GALES TO 45 KNOTS BACKING EAST LATE.
FREEZING SPRAY. A CHANCE OF SNOW THROUGH MIDNIGHT. SNOW LIKELY
AFTER MIDNIGHT. WAVES BUILDING TO 15 TO 20 FEET OCCASIONALLY TO
25 FEET.
FRIDAY
EAST GALES TO 45 KNOTS BECOMING NORTH GALES TO 40 KNOTS
BY MID AFTERNOON. FREEZING SPRAY. SNOW LIKELY THROUGH EARLY
AFTERNOON. A CHANCE OF SNOW BY MID AFTERNOON. WAVES SUBSIDING TO
12 TO 17 FEET OCCASIONALLY TO 21 FEET.
FRIDAY NIGHT
NORTH GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. WAVES SUBSIDING TO 7 TO
10 FEET OCCASIONALLY TO 13 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT. WAVES
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SUNDAY
EAST GALES TO 40 KNOTS BECOMING NORTHEAST STORM FORCE
WINDS TO 60 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. SNOW SHOWERS LIKELY. WAVES BUILDING TO 20 TO 25 FEET
OCCASIONALLY TO 31 FEET.
MONDAY
NORTH STORM FORCE WINDS TO 60 KNOTS DIMINISHING TO
GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
LSZ267-120800-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
400 PM EDT WED MAR 11 2026
...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH LATE
FRIDAY NIGHT...
LATE THIS AFTERNOON
NORTH GALES TO 35 KNOTS. FREEZING SPRAY.
SNOW LIKELY. WAVES 4 TO 8 FEET OCCASIONALLY TO 10 FEET.
TONIGHT
NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
LATE. FREEZING SPRAY. SNOW LIKELY THROUGH MIDNIGHT. A CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 7 TO 10 FEET
OCCASIONALLY TO 13 FEET, THEN SUBSIDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
THURSDAY
NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. FREEZING SPRAY THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
THURSDAY NIGHT
SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO
GALES TO 45 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW THROUGH
MIDNIGHT, THEN SNOW LIKELY AFTER MIDNIGHT. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 11 TO 15 FEET OCCASIONALLY TO
19 FEET.
FRIDAY
EAST GALES TO 45 KNOTS BECOMING NORTH GALES TO 40 KNOTS
BY MID AFTERNOON. FREEZING SPRAY. SNOW. WAVES SUBSIDING TO 10 TO
14 FEET OCCASIONALLY TO 18 FEET.
FRIDAY NIGHT
NORTH GALES TO 40 KNOTS. FREEZING SPRAY. WAVES
SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
SATURDAY
NORTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT. WAVES
BUILDING TO 2 TO 4 FEET.
SUNDAY
EAST GALES TO 35 KNOTS BECOMING NORTHEAST STORM FORCE
WINDS TO 55 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. SNOW SHOWERS LIKELY. WAVES BUILDING TO 15 TO 20 FEET
OCCASIONALLY TO 25 FEET.
MONDAY
NORTH STORM FORCE WINDS TO 55 KNOTS DIMINISHING TO
GALES TO 35 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
LSZ261-120200-
MAFOR 1121/
SUPERIOR WEST 11720 11730 13720 11710 11600 11310. WAVES 2 TO 4
FEET TONIGHT. WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS
THURSDAY.
SUPERIOR NORTH CENTRAL 12840 11841 11731 11830 11820 11710 11600.
WAVES 4 TO 7 FEET TONIGHT. WAVES 3 TO 6 FEET SUBSIDING TO 1 TO 3
FEET THURSDAY.
SUPERIOR SOUTH CENTRAL 11751 11750 11751 11741 11740 11730 11720
11610. A CHANCE OF SNOW EARLY THIS EVENING. A CHANCE OF SNOW
SHOWERS OVERNIGHT. WAVES 6 TO 10 FEET TONIGHT. WAVES 5 TO 8 FEET
SUBSIDING TO 2 TO 4 FEET THURSDAY.
SUPERIOR EAST 11847 11857 12841 12830 11820 11710. WAVES 5 TO 9
FEET TONIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 2 TO 3 FEET
THURSDAY.
WFO MQT
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MQT/GLFTABLE
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page