009
FZUS63 KMQT 300301
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1000 PM EST MON DEC 29 2025
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 29.0 INCH LOW WAS OVER QUEBEC THIS EVENING WITH A 30.5 INCH RIDGE
OVER THE PLAINS. THE LOW WILL CONTINUE TO LIFT NORTH AND THEN
RETROGRADE WESTWARD TO THE HUDSON BAY ON TUESDAY NIGHT INTO
WEDNESDAY. AS THE RIDGE SLIDES SOUTHEAST IT WILL EXTEND A 30.1 INCH
RIDGE OVER LAKE SUPERIOR ON TUESDAY, BEFORE A 29.9 INCH TROUGH
BUILDS OVER THE LAKE ON TUESDAY NIGHT. THE LOW WILL REMAIN OVER THE
HUDSON BAY THROUGH THE REST OF THE WEEK EXTENDING 29.8 INCH
TROUGHING SOUTHWEST OVER LAKE SUPERIOR.
LSZ162-300900-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1000 PM EST MON DEC 29 2025 /900 PM CST MON DEC 29 2025/
REST OF TONIGHT
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS LATE. A SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET SUBSIDING TO
CALM TO 2 FEET.
TUESDAY
WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. SNOW SHOWERS LIKELY. WAVES CALM TO
2 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO
7 FEET.
WEDNESDAY
NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO 2 TO 4 FEET, THEN BUILDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
WEDNESDAY NIGHT
NORTHWEST GALES TO 35 KNOTS. WAVES 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
THURSDAY
WEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING SPRAY.
WAVES 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
THURSDAY NIGHT
WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
FRIDAY
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
SATURDAY
WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ263-300900-
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 DEC 29 2025
REST OF TONIGHT
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS BY MIDNIGHT. FREEZING SPRAY LATE IN THE EVENING.
WAVES 5 TO 8 FEET OCCASIONALLY TO 10 FEET SUBSIDING TO 2 TO
4 FEET.
TUESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS IN THE MORNING, THEN SNOW SHOWERS LIKELY IN THE
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
TUESDAY NIGHT
NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MIDNIGHT, THEN BECOMING NORTHWEST 20 TO 30 KNOTS
LATE. A CHANCE OF SNOW SHOWERS. FREEZING SPRAY AFTER MIDNIGHT.
WAVES BUILDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
WEDNESDAY
NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES
TO 35 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN
THE MORNING. HEAVY FREEZING SPRAY. WAVES BUILDING TO 4 TO 8 FEET
OCCASIONALLY TO 10 FEET.
WEDNESDAY NIGHT
NORTHWEST GALES TO 35 KNOTS. HEAVY FREEZING
SPRAY. WAVES BUILDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
THURSDAY
NORTHWEST GALES TO 40 KNOTS BECOMING WEST GALES TO
35 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. WAVES BUILDING
TO 6 TO 10 FEET OCCASIONALLY TO 13 FEET.
THURSDAY NIGHT
WEST GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. WAVES SUBSIDING TO 4 TO
7 FEET OCCASIONALLY TO 9 FEET.
FRIDAY
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 1 TO 3 FEET.
SATURDAY
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET, THEN BUILDING
TO 1 TO 3 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ264-300900-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1000 PM EST MON DEC 29 2025
REST OF TONIGHT
NORTH WINDS TO 30 KNOTS WITH A FEW GALE FORCE
GUSTS TO 35 KNOTS POSSIBLE BECOMING NORTHWEST 20 TO 30 KNOTS
LATE. HEAVY FREEZING SPRAY. WAVES 10 TO 14 FEET OCCASIONALLY TO
18 FEET SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
TUESDAY
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY IN THE MORNING. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
TUESDAY NIGHT
NORTH WINDS 15 TO 25 KNOTS INCREASING TO
30 KNOTS WITH A FEW GALE FORCE GUSTS TO 35 KNOTS POSSIBLE LATE.
HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO
6 TO 9 FEET OCCASIONALLY TO 11 FEET.
WEDNESDAY
NORTHWEST GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. A
SLIGHT CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 7 TO 11 FEET
OCCASIONALLY TO 14 FEET.
WEDNESDAY NIGHT
NORTHWEST GALES TO 40 KNOTS. HEAVY FREEZING
SPRAY. WAVES BUILDING TO 9 TO 12 FEET OCCASIONALLY TO 15 FEET.
THURSDAY
NORTHWEST GALES TO 45 KNOTS BECOMING WEST GALES TO
40 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. WAVES SUBSIDING
TO 8 TO 11 FEET OCCASIONALLY TO 14 FEET.
THURSDAY NIGHT
WEST GALES TO 40 KNOTS BECOMING NORTHWEST GALES
TO 35 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. WAVES SUBSIDING
TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
FRIDAY
NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS. HEAVY FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET, THEN BUILDING TO 2 TO 4 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ265-300900-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1000 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY
REST OF TONIGHT
NORTHWEST GALES TO 40 KNOTS DIMINISHING TO
20 TO 30 KNOTS LATE. HEAVY FREEZING SPRAY. A SLIGHT CHANCE OF
SNOW SHOWERS. WAVES 11 TO 15 FEET OCCASIONALLY TO 19 FEET
SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
TUESDAY
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY IN THE MORNING. A CHANCE OF SNOW SHOWERS
IN THE MORNING, THEN SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
SUBSIDING TO 1 TO 3 FEET.
TUESDAY NIGHT
NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS LATE. FREEZING SPRAY. SNOW SHOWERS LIKELY IN
THE EVENING. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
WEDNESDAY
NORTHWEST GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 8 TO 11 FEET
OCCASIONALLY TO 14 FEET.
WEDNESDAY NIGHT
NORTHWEST GALES TO 45 KNOTS. HEAVY FREEZING
SPRAY. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 9 TO
12 FEET OCCASIONALLY TO 15 FEET.
THURSDAY
NORTHWEST GALES TO 45 KNOTS BECOMING WEST GALES TO
40 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. WAVES SUBSIDING
TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
THURSDAY NIGHT
WEST GALES TO 40 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
FRIDAY
NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 1 TO 3 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET, THEN BUILDING TO 1 TO 3 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ266-300900-
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 DEC 29 2025
..GALE WARNING IN EFFECT UNTIL 7 AM EST TUESDAY
REST OF TONIGHT
NORTH GALES TO 45 KNOTS BECOMING NORTHWEST
GALES TO 40 KNOTS BY MIDNIGHT. HEAVY FREEZING SPRAY. A SLIGHT
CHANCE OF SNOW SHOWERS. WAVES 15 TO 20 FEET OCCASIONALLY TO
25 FEET SUBSIDING TO 9 TO 12 FEET OCCASIONALLY TO 15 FEET.
TUESDAY
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
TUESDAY NIGHT
NORTH WINDS 15 TO 25 KNOTS INCREASING TO GALES
TO 35 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
WEDNESDAY
NORTHWEST GALES TO 40 KNOTS. HEAVY FREEZING SPRAY.
SNOW SHOWERS. WAVES BUILDING TO 12 TO 17 FEET OCCASIONALLY TO
21 FEET.
WEDNESDAY NIGHT
NORTHWEST GALES TO 45 KNOTS. HEAVY FREEZING
SPRAY. SNOW SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES 12 TO 17 FEET OCCASIONALLY TO
21 FEET.
THURSDAY
NORTHWEST GALES TO 45 KNOTS BACKING WEST IN THE
AFTERNOON. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 11 TO 15 FEET OCCASIONALLY TO 19 FEET.
THURSDAY NIGHT
NORTHWEST GALES TO 45 KNOTS. HEAVY FREEZING
SPRAY. SNOW SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 9 TO 12 FEET
OCCASIONALLY TO 15 FEET.
FRIDAY
NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET, THEN BUILDING TO
3 TO 5 FEET OCCASIONALLY TO 7 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ267-300900-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1000 PM EST MON DEC 29 2025
..GALE WARNING IN EFFECT UNTIL 7 AM EST TUESDAY
REST OF TONIGHT
NORTH GALES TO 45 KNOTS BECOMING NORTHWEST
GALES TO 40 KNOTS BY MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS. WAVES 15 TO 20 FEET OCCASIONALLY TO 25 FEET
SUBSIDING TO 9 TO 12 FEET OCCASIONALLY TO 15 FEET.
TUESDAY
NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
TUESDAY NIGHT
NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
WEDNESDAY
NORTH GALES TO 35 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. SNOW SHOWERS.
WAVES BUILDING TO 11 TO 15 FEET OCCASIONALLY TO 19 FEET.
WEDNESDAY NIGHT
NORTHWEST GALES TO 40 KNOTS. HEAVY FREEZING
SPRAY. SNOW SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 12 TO 17 FEET
OCCASIONALLY TO 21 FEET.
THURSDAY
NORTHWEST GALES TO 40 KNOTS BACKING WEST IN THE
AFTERNOON. HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES
SUBSIDING TO 12 TO 17 FEET OCCASIONALLY TO 21 FEET.
THURSDAY NIGHT
WEST GALES TO 40 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO
9 TO 12 FEET OCCASIONALLY TO 15 FEET.
FRIDAY
NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
SATURDAY
NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET, THEN BUILDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ261-300900-
MAFOR 3004/
SUPERIOR WEST 12720 11710 11617 12627 11727 11720. WAVES 3 TO 6
FEET SUBSIDING TO 1 TO 3 FEET OVERNIGHT. WAVES 1 TO 3 FEET
TUESDAY AND TUESDAY EVENING.
SUPERIOR NORTH CENTRAL 11852 11742 11740 11730 12720 12830. A
CHANCE OF SNOW SHOWERS TUESDAY AND TUESDAY EVENING. WAVES 8 TO 12
FEET SUBSIDING TO 6 TO 9 FEET OVERNIGHT. WAVES 4 TO 7 FEET
SUBSIDING TO 2 TO 4 FEET TUESDAY. WAVES 2 TO 4 FEET BUILDING TO 3
TO 5 FEET TUESDAY EVENING.
SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11750 12740
12730 11727 12737. WAVES 11 TO 16 FEET SUBSIDING TO 9 TO 12 FEET
OVERNIGHT. WAVES 7 TO 10 FEET SUBSIDING TO 3 TO 6 FEET TUESDAY.
WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET TUESDAY EVENING.
SUPERIOR EAST...GALE WARNING IN EFFECT...11752 11750 12740 13730
11830. A CHANCE OF SNOW SHOWERS LATE THIS EVENING, TUESDAY
AFTERNOON, AND TUESDAY EVENING. WAVES 12 TO 16 FEET SUBSIDING TO
10 TO 13 FEET OVERNIGHT. WAVES 8 TO 11 FEET SUBSIDING TO 4 TO 6
FEET TUESDAY. WAVES 4 TO 6 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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