658
FZUS63 KMQT 261401
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1001 AM EDT SUN APR 26 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
RIDGING RESIDES OVER LAKE SUPERIOR AT 30.1 INCHES THIS MORNING AS
30.4 INCH HIGH PRESSURE IS OVER NORTHERN QUEBEC. THE PATTERN REMAINS
STABLE OVER LAKE SUPERIOR TODAY WHILE A 29.4 INCH COLORADO LOW
DEVELOPS. THROUGHOUT MONDAY, THIS LOW MOVES NORTHEAST AND MAINTAINS
STRENGTH, ARRIVING IN WISCONSIN MONDAY NIGHT. THE LOW THEN CROSSES
LAKE SUPERIOR TUESDAY MORNING, REACHING JAMES BAY TUESDAY NIGHT. IN
THE WAKE OF THE LOW, 30.2 INCH HIGH PRESSURE BUILDS OVER THE
CANADIAN PRAIRIE, SENDING 30.1 INCH HIGH PRESSURE OVER THE LAKE
WEDNESDAY. THIS HIGH APPROACHES THE GREAT LAKES SLOWLY THURSDAY,
RESIDING OVER THE LAKE FRIDAY AT 30.2 INCHES.
LSZ162-262000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1001 AM EDT SUN APR 26 2026 /901 AM CDT SUN APR 26 2026/
REST OF TODAY
NORTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG BY
LATE MORNING. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
TONIGHT
NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT, THEN VEERING EAST LATE. A CHANCE OF RAIN
SHOWERS. PATCHY FOG AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
MONDAY
EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 20 TO
30 KNOTS IN THE AFTERNOON, THEN DIMINISHING TO 15 TO 25 KNOTS
LATE. RAIN SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
MONDAY NIGHT
NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. RAIN SHOWERS. WAVES BUILDING TO
4 TO 7 FEET OCCASIONALLY TO 9 FEET, THEN SUBSIDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
TUESDAY
NORTHWEST WINDS 20 TO 30 KNOTS BACKING WEST BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS THROUGH EARLY AFTERNOON.
WAVES BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET, THEN
SUBSIDING TO 2 TO 4 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
WEDNESDAY
WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST. WAVES
CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. WAVES
CALM TO 2 FEET.
LSZ263-262000-
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-
1001 AM EDT SUN APR 26 2026
REST OF TODAY
NORTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
TONIGHT
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
MONDAY
EAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
LATE. A CHANCE OF RAIN SHOWERS THROUGH EARLY AFTERNOON, THEN RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS BY MID AFTERNOON.
WAVES BUILDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
MONDAY NIGHT
EAST WINDS 20 TO 30 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. RAIN
SHOWERS. WAVES BUILDING TO 8 TO 11 FEET OCCASIONALLY TO 14 FEET,
THEN SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
TUESDAY
WEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO 4 TO 8 FEET OCCASIONALLY TO 10 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
WEDNESDAY
WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. WAVES
CALM TO 2 FEET.
LSZ264-262000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1001 AM EDT SUN APR 26 2026
REST OF TODAY
SOUTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
LATE. A SLIGHT CHANCE OF RAIN SHOWERS BY LATE MORNING. PATCHY
FOG. WAVES CALM TO 2 FEET.
TONIGHT
NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. PATCHY DENSE FOG. WAVES BUILDING TO 1 TO 3 FEET.
MONDAY
SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS
WITH A FEW GALE FORCE GUSTS TO 35 KNOTS POSSIBLE. RAIN SHOWERS
LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS BY MID AFTERNOON.
WAVES BUILDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
MONDAY NIGHT
SOUTHEAST GALES TO 35 KNOTS VEERING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. RAIN
SHOWERS. WAVES BUILDING TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET,
THEN SUBSIDING TO 8 TO 11 FEET OCCASIONALLY TO 14 FEET.
TUESDAY
WEST GALES TO 40 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
WEDNESDAY
NORTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
THURSDAY
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
LSZ265-262000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1001 AM EDT SUN APR 26 2026
REST OF TODAY
SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS IN THE AFTERNOON, THEN BECOMING EAST 10 TO 20 KNOTS
LATE. WAVES CALM TO 2 FEET.
TONIGHT
EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST LATE.
PATCHY FOG. WAVES CALM TO 2 FEET.
MONDAY
SOUTHEAST WINDS 20 TO 30 KNOTS INCREASING TO 30 KNOTS
WITH A FEW GALE FORCE GUSTS TO 40 KNOTS POSSIBLE IN THE
AFTERNOON. A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS BY MID AFTERNOON. WAVES BUILDING TO 6 TO 9 FEET
OCCASIONALLY TO 11 FEET.
MONDAY NIGHT
SOUTHEAST GALES TO 40 KNOTS BECOMING SOUTH GALES
TO 35 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. RAIN SHOWERS. WAVES BUILDING TO 8 TO 11 FEET
OCCASIONALLY TO 14 FEET, THEN SUBSIDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
TUESDAY
WEST GALES TO 40 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES BUILDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET, THEN
SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
WEDNESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
THURSDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
LSZ266-262000-
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-
1001 AM EDT SUN APR 26 2026
REST OF TODAY
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST
10 TO 20 KNOTS LATE. PATCHY FOG. WAVES CALM TO 2 FEET.
TONIGHT
EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
AFTER MIDNIGHT, THEN VEERING SOUTHEAST LATE. PATCHY FOG. WAVES
BUILDING TO 1 TO 3 FEET.
MONDAY
SOUTHEAST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
45 KNOTS IN THE AFTERNOON. A CHANCE OF RAIN SHOWERS BY MID
AFTERNOON. WAVES BUILDING TO 9 TO 12 FEET OCCASIONALLY TO
15 FEET.
MONDAY NIGHT
SOUTHEAST GALES TO 45 KNOTS BECOMING SOUTH GALES
TO 40 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. RAIN SHOWERS. WAVES BUILDING TO 10 TO 14 FEET
OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 8 TO 11 FEET
OCCASIONALLY TO 14 FEET.
TUESDAY
WEST GALES TO 45 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET, THEN
BUILDING TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
WEDNESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
LSZ267-262000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1001 AM EDT SUN APR 26 2026
REST OF TODAY
SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST IN
THE AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
TONIGHT
EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. PATCHY FOG. WAVES BUILDING TO 1 TO 3 FEET.
MONDAY
SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS
WITH A FEW GALE FORCE GUSTS TO 40 KNOTS POSSIBLE IN THE
AFTERNOON. WAVES BUILDING TO 8 TO 11 FEET OCCASIONALLY TO
14 FEET.
MONDAY NIGHT
SOUTHEAST GALES TO 45 KNOTS. RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. WAVES BUILDING TO 9 TO 12 FEET
OCCASIONALLY TO 15 FEET, THEN SUBSIDING TO 7 TO 10 FEET
OCCASIONALLY TO 13 FEET.
TUESDAY
WEST GALES TO 40 KNOTS. RAIN SHOWERS LIKELY THROUGH
EARLY AFTERNOON, THEN A SLIGHT CHANCE OF RAIN SHOWERS BY MID
AFTERNOON. WAVES SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO
11 FEET, THEN BUILDING TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
WEDNESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH. WAVES
BUILDING TO 1 TO 3 FEET, THEN SUBSIDING TO CALM TO 2 FEET.
LSZ261-262000-
MAFOR 2615/
SUPERIOR WEST 12100 12110 11120 11130 11230 11236. WAVES 1 TO 2
FEET THIS AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET
TONIGHT. WAVES 3 TO 5 FEET MONDAY MORNING.
SUPERIOR NORTH CENTRAL 13300 11100 12214 11220 11330. WAVES 1 TO
2 FEET THIS AFTERNOON AND TONIGHT. WAVES 2 TO 4 FEET MONDAY
MORNING.
SUPERIOR SOUTH CENTRAL 12310 11210 11310 11300 12310 11330. WAVES
1 TO 2 FEET THIS AFTERNOON AND TONIGHT. WAVES 2 TO 4 FEET MONDAY
MORNING.
SUPERIOR EAST 11300 13200 12310 11320 11330. WAVES 1 TO 2 FEET
THIS AFTERNOON AND TONIGHT. WAVES 2 TO 4 FEET MONDAY MORNING.
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
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