861
FZUS63 KMQT 282002
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
401 PM EDT TUE OCT 28 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 30.3 INCH RIDGE PERSISTS OVER LAKE SUPERIOR THROUGH WEDNESDAY
MORNING. MEANWHILE, A 29.6 INCH LOW ORGANIZES OVER WESTERN TENNESSEE
FOR WEDNESDAY. RIDGING OVERHEAD DISSIPATES THROUGH THURSDAY WHILE A
29.9 INCH LOW APPROACHES LAKE SUPERIOR FROM THE CANADIAN PRAIRIE AND
THE SOUTHEASTERN LOW DEEPENS TO 29.5 INCHES NEAR MARYLAND. THE WEAK
LOW PHASES WITH THE EAST COAST LOW THURSDAY NIGHT WHILE IT DEEPENS
TO 29.3 INCHES, REACHING NEW ENGLAND. THE LOW RAPIDLY DEEPENS TO
28.8 INCHES FRIDAY AS IT LIFTS OVER NEW ENGLAND. THE LOW DEPARTS TO
THE EAST ON SATURDAY WHILE HIGH PRESSURE OF 30.2 TO 30.3 INCHES
SETTLES SOUTHEAST OVER THE PLAINS AND MIDWEST. THIS HIGH SETTLES
FURTHER SOUTH ON SUNDAY AS A 29.2 INCH LOW TRAVELS INTO HUDSON BAY.
LSZ162-290800-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
401 PM EDT TUE OCT 28 2025 /301 PM CDT TUE OCT 28 2025/
LATE THIS AFTERNOON
EAST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.
TONIGHT
EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT, THEN BACKING EAST LATE. WAVES SUBSIDING
TO CALM TO 2 FEET, THEN BUILDING TO 1 TO 3 FEET.
WEDNESDAY
NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
WEDNESDAY NIGHT
NORTHEAST WINDS LESS THAN 10 KNOTS BACKING
NORTHWEST LATE. WAVES CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
THURSDAY NIGHT
NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
FRIDAY
NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.
FRIDAY NIGHT
NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
SATURDAY
NORTH WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 1 TO
3 FEET.
LSZ263-290800-
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-
401 PM EDT TUE OCT 28 2025
LATE THIS AFTERNOON
EAST WINDS 10 TO 20 KNOTS. WAVES 2 TO
4 FEET.
TONIGHT
SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
WEDNESDAY
SOUTHEAST WINDS LESS THAN 10 KNOTS BACKING NORTHEAST
IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
WEDNESDAY NIGHT
NORTHEAST WINDS LESS THAN 10 KNOTS BACKING
NORTHWEST AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS LESS THAN 10 KNOTS. WAVES CALM TO
2 FEET.
THURSDAY NIGHT
NORTH WINDS LESS THAN 10 KNOTS INCREASING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
FRIDAY
NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET.
FRIDAY NIGHT
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
SUNDAY
SOUTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
LSZ264-290800-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
401 PM EDT TUE OCT 28 2025
LATE THIS AFTERNOON
SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
TONIGHT
SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET, THEN
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
WEDNESDAY
SOUTHEAST WINDS LESS THAN 10 KNOTS BACKING NORTHEAST
LATE. WAVES SUBSIDING TO CALM TO 2 FEET.
WEDNESDAY NIGHT
NORTHEAST WINDS LESS THAN 10 KNOTS BACKING
NORTHWEST LATE. WAVES CALM TO 2 FEET.
THURSDAY
NORTH WINDS LESS THAN 10 KNOTS. WAVES CALM TO 2 FEET.
THURSDAY NIGHT
NORTH WINDS 5 TO 15 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
FRIDAY
NORTHEAST WINDS 15 TO 25 KNOTS BACKING NORTH BY MID
AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
FRIDAY NIGHT
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
LSZ265-290800-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
401 PM EDT TUE OCT 28 2025
LATE THIS AFTERNOON
SOUTHEAST WINDS 15 TO 25 KNOTS. WAVES 2 TO
4 FEET.
TONIGHT
SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
WEDNESDAY
SOUTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
LATE. WAVES SUBSIDING TO CALM TO 2 FEET.
WEDNESDAY NIGHT
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH
LESS THAN 10 KNOTS AFTER MIDNIGHT, THEN BECOMING NORTHWEST 5 TO
15 KNOTS LATE. WAVES CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
THURSDAY NIGHT
NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
FRIDAY
NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY AFTERNOON,
THEN SHOWERS LIKELY BY MID AFTERNOON. WAVES BUILDING TO 2 TO
4 FEET.
FRIDAY NIGHT
NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET,
THEN SUBSIDING TO 2 TO 4 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
SUNDAY
SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO GALES TO
35 KNOTS. A CHANCE OF RAIN SHOWERS, THEN RAIN SHOWERS LIKELY.
WAVES CALM TO 2 FEET.
LSZ266-290800-
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-
401 PM EDT TUE OCT 28 2025
LATE THIS AFTERNOON
SOUTHEAST WINDS 15 TO 25 KNOTS. WAVES 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
TONIGHT
SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
WEDNESDAY
EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
WEDNESDAY NIGHT
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
THURSDAY
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
THURSDAY NIGHT
NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
FRIDAY
NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO
3 TO 5 FEET OCCASIONALLY TO 7 FEET.
FRIDAY NIGHT
NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH MIDNIGHT,
THEN A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO
3 TO 6 FEET OCCASIONALLY TO 8 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS, THEN RAIN SHOWERS LIKELY.
WAVES BUILDING TO 2 TO 4 FEET.
LSZ267-290800-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
401 PM EDT TUE OCT 28 2025
LATE THIS AFTERNOON
SOUTHEAST WINDS 20 TO 30 KNOTS. WAVES 2 TO
4 FEET BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
TONIGHT
SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS LATE. WAVES SUBSIDING TO CALM TO 2 FEET.
WEDNESDAY
EAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS IN THE AFTERNOON, THEN INCREASING TO 10 TO 20 KNOTS
LATE. WAVES CALM TO 2 FEET.
WEDNESDAY NIGHT
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
THURSDAY
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
THURSDAY NIGHT
NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
FRIDAY
NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
FRIDAY NIGHT
NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH MIDNIGHT,
THEN A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO
3 TO 6 FEET OCCASIONALLY TO 8 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
SUNDAY
SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF RAIN SHOWERS, THEN RAIN SHOWERS LIKELY.
WAVES BUILDING TO 2 TO 4 FEET.
LSZ261-290200-
MAFOR 2821/
SUPERIOR WEST 11210 11220 11310 11300 13200 11100. WAVES 1 TO 3
FEET TONIGHT. WAVES 2 FEET OR LESS WEDNESDAY.
SUPERIOR NORTH CENTRAL 11330 12320 11310 13300 11200. WAVES 3 TO
5 FEET SUBSIDING TO 2 TO 4 FEET TONIGHT. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET WEDNESDAY.
SUPERIOR SOUTH CENTRAL 14320 11310 11300 11200 11100. WAVES 2 TO
4 FEET TONIGHT. WAVES 1 TO 3 FEET WEDNESDAY.
SUPERIOR EAST 12330 12320 11310 11200 11100 11800. WAVES 2 TO 4
FEET BUILDING TO 3 TO 5 FEET, THEN SUBSIDING TO 2 TO 4 FEET
TONIGHT. WAVES 1 TO 3 FEET WEDNESDAY.
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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