822
FZUS63 KMQT 170301
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1000 PM EST MON FEB 16 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 29.8 INCH TROUGH WILL BE FOLLOWED BY HEIGHT RISES TONIGHT AS A
RIDGE BUILDS TO 30.2 INCHES INTO TOMORROW. THE RIDGING THEN GIVES
WAY TO PRESSURE FALLS INTO THE MIDDLE OF THE WEEK AS A 29.1 INCH LOW
LIFTS OFF OF THE CENTRAL ROCKIES AND INTO THE UPPER MIDWEST BY
WEDNESDAY, WEAKENING TO 29.2 INCHES AS IT DOES SO. THIS BRINGS
TROUGHING OF AT LEAST 29.6 INCHES OVER THE LAKE BY WEDNESDAY
AFTERNOON BEFORE WEAK RIDGING MOVES OVER AT 29.9 INCHES ON THURSDAY.
A COLORADO LOW THEN MOVES THROUGH THE CENTRAL PLAINS ON THURSDAY
BEFORE LIFTING TOWARDS THE STRAITS AT 29.5 INCHES ON FRIDAY,
WEAKENING AS IT MOVES INTO ONTARIO FRIDAY EVENING.
LSZ162-170900-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1000 PM EST MON FEB 16 2026 /900 PM CST MON FEB 16 2026/
...STORM WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY
EVENING...
REST OF TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS BACKING
NORTHEAST LATE. WAVES CALM TO 2 FEET.
TUESDAY
EAST WINDS 10 TO 20 KNOTS INCREASING TO GALES TO
35 KNOTS. WAVES BUILDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
TUESDAY NIGHT
EAST GALES TO 45 KNOTS INCREASING TO STORM FORCE
WINDS TO 50 KNOTS LATE. SNOW LIKELY WITH POCKETS OF FREEZING RAIN
IN THE EVENING, THEN SNOW AFTER MIDNIGHT. WAVES BUILDING TO 7 TO
10 FEET OCCASIONALLY TO 13 FEET.
WEDNESDAY
EAST STORM FORCE WINDS TO 50 KNOTS DIMINISHING TO
GALES TO 40 KNOTS IN THE AFTERNOON. SNOW IN THE MORNING, THEN
SNOW LIKELY IN THE AFTERNOON. WAVES SUBSIDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET, THEN BUILDING TO 6 TO 9 FEET
OCCASIONALLY TO 11 FEET.
WEDNESDAY NIGHT
EAST GALES TO 40 KNOTS. SNOW SHOWERS LIKELY IN
THE EVENING, THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
THURSDAY
EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
THURSDAY NIGHT
NORTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
FRIDAY
NORTHEAST WINDS 20 TO 30 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ263-170900-
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 MON FEB 16 2026
...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE
WEDNESDAY NIGHT...
REST OF TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS DIMINISHING TO
LESS THAN 10 KNOTS BY MIDNIGHT, THEN VEERING NORTH LATE. PATCHY
DENSE FOG. WAVES CALM TO 2 FEET.
TUESDAY
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS BY LATE MORNING, THEN INCREASING TO 20 TO 30 KNOTS BY
MID AFTERNOON. PATCHY DENSE FOG IN THE MORNING. WAVES BUILDING TO
2 TO 4 FEET.
TUESDAY NIGHT
EAST GALES TO 45 KNOTS. A CHANCE OF SNOW,
POSSIBLY MIXED WITH FREEZING RAIN IN THE EVENING, THEN SNOW AFTER
MIDNIGHT. WAVES BUILDING TO 10 TO 14 FEET OCCASIONALLY TO
18 FEET.
WEDNESDAY
EAST GALES TO 45 KNOTS. SNOW IN THE MORNING, THEN
SNOW LIKELY IN THE AFTERNOON. WAVES BUILDING TO 12 TO 17 FEET
OCCASIONALLY TO 21 FEET, THEN SUBSIDING TO 10 TO 14 FEET
OCCASIONALLY TO 18 FEET.
WEDNESDAY NIGHT
EAST GALES TO 40 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 8 TO 11 FEET OCCASIONALLY TO 14 FEET.
THURSDAY
EAST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
THURSDAY NIGHT
EAST WINDS 20 TO 30 KNOTS. WAVES 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
FRIDAY
NORTHEAST WINDS 20 TO 30 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ264-170900-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1000 PM EST MON FEB 16 2026
...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE
WEDNESDAY NIGHT...
REST OF TONIGHT
WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
LATE. PATCHY DENSE FOG. WAVES CALM TO 2 FEET.
TUESDAY
NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS BY LATE MORNING, THEN BECOMING EAST 15 TO 25 KNOTS BY
MID AFTERNOON. PATCHY DENSE FOG IN THE MORNING. WAVES BUILDING TO
2 TO 4 FEET.
TUESDAY NIGHT
EAST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
40 KNOTS BY MIDNIGHT. A CHANCE OF SNOW. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 10 TO 14 FEET OCCASIONALLY TO
18 FEET.
WEDNESDAY
EAST GALES TO 45 KNOTS. FREEZING SPRAY. SNOW. WAVES
BUILDING TO 12 TO 17 FEET OCCASIONALLY TO 21 FEET, THEN SUBSIDING
TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET.
WEDNESDAY NIGHT
EAST GALES TO 35 KNOTS. FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 9 TO 12 FEET
OCCASIONALLY TO 15 FEET.
THURSDAY
EAST WINDS 20 TO 30 KNOTS. FREEZING SPRAY IN THE
MORNING. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 6 TO 9 FEET
OCCASIONALLY TO 11 FEET.
THURSDAY NIGHT
EAST WINDS 20 TO 30 KNOTS. FREEZING SPRAY AFTER
MIDNIGHT. WAVES 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
FRIDAY
EAST WINDS 20 TO 30 KNOTS BECOMING NORTHEAST 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ265-170900-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1000 PM EST MON FEB 16 2026
...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE
WEDNESDAY NIGHT...
REST OF TONIGHT
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
TUESDAY
NORTH WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS. PATCHY FOG IN THE MORNING. WAVES BUILDING TO 1 TO
3 FEET.
TUESDAY NIGHT
EAST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
40 KNOTS BY MIDNIGHT. A CHANCE OF SNOW, POSSIBLY MIXED WITH
FREEZING RAIN IN THE EVENING, THEN SNOW LIKELY AFTER MIDNIGHT.
WAVES BUILDING TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET.
WEDNESDAY
EAST GALES TO 45 KNOTS. SNOW. WAVES BUILDING TO
11 TO 15 FEET OCCASIONALLY TO 19 FEET, THEN SUBSIDING TO 10 TO
14 FEET OCCASIONALLY TO 18 FEET.
WEDNESDAY NIGHT
EAST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
THURSDAY
EAST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
THURSDAY NIGHT
EAST WINDS 20 TO 30 KNOTS. WAVES BUILDING TO
5 TO 8 FEET OCCASIONALLY TO 10 FEET.
FRIDAY
EAST GALES TO 35 KNOTS BECOMING NORTHEAST 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
SATURDAY
NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. WAVES
SUBSIDING TO 1 TO 3 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ266-170900-
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 MON FEB 16 2026
...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE
WEDNESDAY NIGHT...
REST OF TONIGHT
WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
LATE. PATCHY FOG. WAVES CALM TO 2 FEET.
TUESDAY
NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY LATE
MORNING, THEN BECOMING EAST 10 TO 20 KNOTS BY MID AFTERNOON.
PATCHY FOG IN THE MORNING. WAVES BUILDING TO 1 TO 3 FEET.
TUESDAY NIGHT
EAST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
40 KNOTS BY MIDNIGHT. A SLIGHT CHANCE OF FREEZING RAIN IN THE
EVENING. A CHANCE OF SNOW. FREEZING SPRAY AFTER MIDNIGHT. WAVES
BUILDING TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET.
WEDNESDAY
EAST GALES TO 45 KNOTS. FREEZING SPRAY IN THE
MORNING. SNOW. WAVES BUILDING TO 11 TO 15 FEET OCCASIONALLY TO
19 FEET, THEN SUBSIDING TO 10 TO 14 FEET OCCASIONALLY TO 18 FEET.
WEDNESDAY NIGHT
EAST GALES TO 35 KNOTS. A CHANCE OF SNOW
SHOWERS. FREEZING SPRAY AFTER MIDNIGHT. WAVES SUBSIDING TO 8 TO
11 FEET OCCASIONALLY TO 14 FEET.
THURSDAY
EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
THURSDAY NIGHT
EAST GALES TO 35 KNOTS. FREEZING SPRAY AFTER
MIDNIGHT. WAVES 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
FRIDAY
EAST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS.
FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
SATURDAY
NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ267-170900-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1000 PM EST MON FEB 16 2026
...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY
EVENING...
REST OF TONIGHT
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS BY MIDNIGHT, THEN BACKING WEST LATE. PATCHY FOG.
WAVES CALM TO 2 FEET.
TUESDAY
NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES CALM TO 2 FEET.
TUESDAY NIGHT
EAST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS
WITH A FEW GALE FORCE GUSTS TO 35 KNOTS POSSIBLE. FREEZING SPRAY
AFTER MIDNIGHT. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING
TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
WEDNESDAY
EAST GALES TO 40 KNOTS. FREEZING SPRAY IN THE
MORNING. SNOW. WAVES BUILDING TO 6 TO 9 FEET OCCASIONALLY TO
11 FEET, THEN SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
WEDNESDAY NIGHT
EAST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. FREEZING SPRAY AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO
6 FEET OCCASIONALLY TO 8 FEET.
THURSDAY
EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
THURSDAY NIGHT
EAST WINDS 20 TO 30 KNOTS INCREASING TO GALES
TO 35 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
FRIDAY
EAST GALES TO 35 KNOTS DIMINISHING TO 15 TO 25 KNOTS. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET, THEN BUILDING TO 2 TO 4 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ261-170900-
MAFOR 1704/
SUPERIOR WEST 11500 11300 19304 11200 19204 11210 11230 11240
12257. WAVES OMITTED DUE TO THE LAKE BEING MOSTLY ICE COVERED.
SUPERIOR NORTH CENTRAL 11600 11600 19604 11700 19704 11810 11110
11120 11230 11240. WAVES 1 TO 3 FEET OVERNIGHT AND TUESDAY. WAVES
2 TO 4 FEET BUILDING TO 4 TO 7 FEET TUESDAY EVENING.
SUPERIOR SOUTH CENTRAL 12600 11700 11800 11110 11220 11230 11240.
A CHANCE OF SNOW TUESDAY EVENING. WAVES 2 FEET OR LESS OVERNIGHT
AND TUESDAY. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET TUESDAY
EVENING. WAVE HEIGHTS ARE FOR ICE FREE AREAS.
SUPERIOR EAST 11710 11600 11700 11800 11100 11110 11220 11240.
WAVES 1 TO 2 FEET OVERNIGHT AND TUESDAY. WAVES 1 TO 3 FEET
BUILDING TO 3 TO 5 FEET TUESDAY 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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