999
FZUS63 KMQT 090301
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1000 PM EST THU JAN 8 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 29.3 INCH LOW WILL MOVE THROUGH NORTHERN LAKE MICHIGAN TONIGHT
WHILE A 29.6 INCH LOW TO THE NORTH CONTINUES TOWARD JAMES BAY. BOTH
PRESS INTO QUEBEC FRIDAY AS 30.1 INCH RIDGING BUILDS OVER THE UPPER
MIDWEST. FRIDAY NIGHT THROUGH SATURDAY, TWO LOWS (ONE COMING FROM
MANITOBA AND ANOTHER FROM THE LOWER MISSISSIPPI VALLEY) WILL MERGE,
RESULTING IN A LOW OF AT LEAST 29.8 INCHES NEAR SOUTHERN ONTARIO.
THIS LOW WILL LIFT INTO QUEBEC NEAR 29.6 INCHES SUNDAY AFTERNOON AS
A 30.6 INCH HIGH SPREADS ACROSS THE CENTRAL PLAINS. THE HIGH EXTENDS
A 30.1 INCH RIDGE OVER THE LAKE SUNDAY NIGHT AHEAD OF A 29.8 INCH
TROUGH TRANSITING THE LAKE MONDAY.
LSZ162-090900-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1000 PM EST THU JAN 8 2026 /900 PM CST THU JAN 8 2026/
REST OF TONIGHT
NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MIDNIGHT. A SLIGHT CHANCE OF RAIN. WAVES CALM TO
2 FEET BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET, THEN
SUBSIDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
FRIDAY
NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS BY LATE MORNING, THEN BECOMING WEST 5 TO 15 KNOTS BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
FRIDAY NIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
BUILDING TO 2 TO 4 FEET.
SATURDAY NIGHT
NORTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS IN THE EVENING. WAVES BUILDING TO 4 TO 7 FEET
OCCASIONALLY TO 9 FEET, THEN SUBSIDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
SUNDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET, THEN
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SUNDAY NIGHT
SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET,
THEN SUBSIDING TO 2 TO 4 FEET.
MONDAY
WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
TUESDAY
NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF RAIN SHOWERS. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 2 TO 4 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ263-090900-
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-
1000 PM EST THU JAN 8 2026
REST OF TONIGHT
NORTH WINDS 5 TO 15 KNOTS INCREASING TO 20 TO
30 KNOTS BY MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN, POSSIBLY
MIXED WITH SNOW. WAVES CALM TO 2 FEET BUILDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
FRIDAY
NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS BY LATE MORNING, THEN BECOMING WEST 10 TO 20 KNOTS BY
MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
FRIDAY NIGHT
WEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY
MIDNIGHT, THEN BACKING SOUTHEAST LATE. WAVES SUBSIDING TO CALM TO
2 FEET.
SATURDAY
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
15 TO 25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
SATURDAY NIGHT
NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A
SLIGHT CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET
OCCASIONALLY TO 11 FEET, THEN SUBSIDING TO 4 TO 7 FEET
OCCASIONALLY TO 9 FEET.
SUNDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO 25 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET, THEN BUILDING
TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SUNDAY NIGHT
SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES BUILDING TO 5 TO 9 FEET OCCASIONALLY TO 11 FEET.
MONDAY
WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
TUESDAY
NORTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ264-090900-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1000 PM EST THU JAN 8 2026
REST OF TONIGHT
NORTH WINDS 5 TO 15 KNOTS INCREASING TO 20 TO
30 KNOTS BY MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN. A SLIGHT
CHANCE OF SNOW AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO
5 TO 8 FEET OCCASIONALLY TO 10 FEET.
FRIDAY
NORTH WINDS TO 30 KNOTS WITH A FEW GALE FORCE GUSTS TO
35 KNOTS POSSIBLE DIMINISHING TO 20 TO 30 KNOTS BY LATE MORNING,
THEN BECOMING NORTHWEST 15 TO 25 KNOTS BY MID AFTERNOON. WAVES
BUILDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET, THEN SUBSIDING
TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
FRIDAY NIGHT
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
LESS THAN 10 KNOTS BY MIDNIGHT, THEN INCREASING TO 5 TO 15 KNOTS
LATE. WAVES SUBSIDING TO CALM TO 2 FEET.
SATURDAY
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
SATURDAY NIGHT
NORTHEAST WINDS 20 TO 30 KNOTS BACKING NORTH
AFTER MIDNIGHT. FREEZING SPRAY. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 5 TO 9 FEET OCCASIONALLY TO 11 FEET.
SUNDAY
NORTH WINDS 15 TO 25 KNOTS BACKING WEST IN THE
AFTERNOON. FREEZING SPRAY IN THE MORNING. WAVES SUBSIDING TO 2 TO
4 FEET, THEN BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SUNDAY NIGHT
WEST WINDS 20 TO 30 KNOTS. WAVES BUILDING TO 7 TO
10 FEET OCCASIONALLY TO 13 FEET, THEN SUBSIDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
MONDAY
WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 2 TO 4 FEET.
TUESDAY
NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 1 TO 3 FEET, THEN
BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ265-090900-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1000 PM EST THU JAN 8 2026
...GALE WARNING IN EFFECT FROM 7 AM EST FRIDAY THROUGH FRIDAY
AFTERNOON...
REST OF TONIGHT
NORTH WINDS 10 TO 20 KNOTS INCREASING TO GALES
TO 35 KNOTS. PATCHY FOG LATE IN THE EVENING. AREAS OF DENSE FOG
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW LATE IN THE EVENING.
RAIN. SNOW AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 5 TO
8 FEET OCCASIONALLY TO 10 FEET.
FRIDAY
NORTH GALES TO 40 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS BY LATE MORNING, THEN DIMINISHING TO 20 TO 30 KNOTS BY
MID AFTERNOON. PATCHY FOG IN THE MORNING. A CHANCE OF RAIN AND
SNOW IN THE MORNING. WAVES BUILDING TO 9 TO 12 FEET OCCASIONALLY
TO 15 FEET, THEN SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
FRIDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS BY MIDNIGHT, THEN BACKING SOUTHEAST LATE. WAVES
SUBSIDING TO CALM TO 2 FEET.
SATURDAY
SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
SATURDAY NIGHT
NORTHEAST WINDS 20 TO 30 KNOTS BECOMING NORTH
GALES TO 35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
FREEZING SPRAY AFTER MIDNIGHT. WAVES BUILDING TO 7 TO 10 FEET
OCCASIONALLY TO 13 FEET.
SUNDAY
NORTH WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO 25 KNOTS
IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. WAVES SUBSIDING
TO 2 TO 4 FEET.
SUNDAY NIGHT
WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
MONDAY
WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
TUESDAY
WEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ266-090900-
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-
1000 PM EST THU JAN 8 2026
...GALE WARNING IN EFFECT FROM 7 AM EST FRIDAY THROUGH FRIDAY
AFTERNOON...
REST OF TONIGHT
EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST
15 TO 25 KNOTS BY MIDNIGHT, THEN BECOMING NORTH 20 TO 30 KNOTS
LATE. AREAS OF DENSE FOG. RAIN. SNOW AFTER MIDNIGHT. WAVES 1 TO
3 FEET BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
FRIDAY
NORTH GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS BY MID AFTERNOON. PATCHY FOG IN THE MORNING. A CHANCE OF
RAIN AND SNOW IN THE MORNING. WAVES BUILDING TO 10 TO 14 FEET
OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 7 TO 10 FEET
OCCASIONALLY TO 13 FEET.
FRIDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MIDNIGHT, THEN BACKING SOUTHEAST LATE. WAVES
SUBSIDING TO CALM TO 2 FEET.
SATURDAY
SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SATURDAY NIGHT
NORTHEAST WINDS 20 TO 30 KNOTS BECOMING NORTH
GALES TO 35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
FREEZING SPRAY AFTER MIDNIGHT. WAVES BUILDING TO 7 TO 10 FEET
OCCASIONALLY TO 13 FEET.
SUNDAY
NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. WAVES
SUBSIDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SUNDAY NIGHT
WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 6 TO 10 FEET OCCASIONALLY TO 13 FEET.
MONDAY
WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
TUESDAY
WEST WINDS 15 TO 25 KNOTS BECOMING NORTH GALES TO
35 KNOTS. A CHANCE OF RAIN SHOWERS. A CHANCE OF SNOW SHOWERS.
FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET, THEN BUILDING TO
5 TO 8 FEET OCCASIONALLY TO 10 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ267-090900-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1000 PM EST THU JAN 8 2026
...GALE WARNING IN EFFECT FROM 10 AM EST FRIDAY THROUGH FRIDAY
AFTERNOON...
REST OF TONIGHT
SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY
MIDNIGHT, THEN BECOMING NORTH 15 TO 25 KNOTS LATE. PATCHY FOG.
RAIN. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO 3 FEET
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
FRIDAY
NORTH GALES TO 40 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS BY MID AFTERNOON. PATCHY FOG IN THE MORNING. RAIN AND
SNOW IN THE MORNING. WAVES BUILDING TO 9 TO 12 FEET OCCASIONALLY
TO 15 FEET, THEN SUBSIDING TO 7 TO 10 FEET OCCASIONALLY TO
13 FEET.
FRIDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
5 TO 15 KNOTS BY MIDNIGHT, THEN BECOMING SOUTHEAST 10 TO 20 KNOTS
LATE. WAVES SUBSIDING TO 1 TO 3 FEET.
SATURDAY
SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET, THEN BUILDING TO
2 TO 4 FEET.
SATURDAY NIGHT
NORTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS. FREEZING SPRAY AFTER MIDNIGHT. WAVES BUILDING TO
5 TO 8 FEET OCCASIONALLY TO 10 FEET.
SUNDAY
NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES SUBSIDING TO 2 TO
4 FEET.
SUNDAY NIGHT
WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
MONDAY
WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
TUESDAY
SOUTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. A CHANCE
OF SNOW SHOWERS, POSSIBLY MIXED WITH RAIN. WAVES SUBSIDING TO
2 TO 4 FEET, THEN BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ261-090900-
MAFOR 0904/
SUPERIOR WEST 12840 12830 11720 12610 11500. WAVES 1 TO 2 FEET
BUILDING TO 4 TO 7 FEET OVERNIGHT. WAVES 3 TO 6 FEET SUBSIDING TO
1 TO 3 FEET FRIDAY. WAVES 1 TO 2 FEET FRIDAY EVENING.
SUPERIOR NORTH CENTRAL 11836 12840 11850 11840 11740 11720 11710.
WAVES 1 TO 2 FEET BUILDING TO 5 TO 8 FEET OVERNIGHT. WAVES 6 TO
10 FEET SUBSIDING TO 4 TO 7 FEET FRIDAY. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET FRIDAY EVENING.
SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11836 19834
11847 19844 11857 11850 11750 11740 11730 11720. WAVES AROUND 1
FOOT BUILDING TO 4 TO 7 FEET OVERNIGHT. WAVES 7 TO 10 FEET
BUILDING TO 8 TO 12 FEET FRIDAY. WAVES 5 TO 8 FEET SUBSIDING TO 3
TO 5 FEET FRIDAY EVENING.
SUPERIOR EAST...GALE WARNING IN EFFECT...11226 11137 19134 11847
19844 12850 11750 11740 11720. WAVES 2 TO 4 FEET OVERNIGHT. WAVES
5 TO 8 FEET BUILDING TO 8 TO 11 FEET FRIDAY. WAVES 6 TO 9 FEET
SUBSIDING TO 4 TO 6 FEET FRIDAY EVENING.
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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