314
FZUS63 KMQT 030152
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
952 PM EDT WED APR 2 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 29.3 INCH LOW WILL LIFT THROUGH LAKE SUPERIOR
TONIGHT THEN LIFT TO NEAR JAMES BAY THURSDAY AFTERNOON AT 29.4
INCHES. 30.1 INCH RIDGING BUILDS OVER LAKE SUPERIOR THURSDAY
NIGHT, THEN BUILDS TO 30.3 INCHES BY FRIDAY MORNING. THE HIGH
WEAKENS TO 30.0 INCHES SATURDAY. WEAK TROUGHING AT 30.0 INCHES
SETTLES THROUGH THE UPPER GREAT LAKES LATE SATURDAY NIGHT AND
SUNDAY. RIDGING AT 30.1 INCHES MOVES BACK OVER THE REGION MONDAY.
LSZ162-031000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
952 PM EDT WED APR 2 2025 /852 PM CDT WED APR 2 2025/
...GALE WARNING IN EFFECT UNTIL 11 PM EDT /10 PM CDT/ THIS
EVENING...
REST OF TONIGHT
EAST GALES TO 35 KNOTS BECOMING NORTHEAST
20 TO 30 KNOTS AFTER MIDNIGHT, THEN BACKING WEST LATE. RAIN AND
SNOW LIKELY, POSSIBLY MIXED WITH SLEET BY LATE EVENING, THEN A
CHANCE OF SNOW, POSSIBLY MIXED WITH RAIN AFTER MIDNIGHT. WAVES
10 TO 14 FEET OCCASIONALLY TO 18 FEET SUBSIDING TO 4 TO 7 FEET
OCCASIONALLY TO 9 FEET.
THURSDAY
WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
THURSDAY NIGHT
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT, THEN VEERING NORTHWEST LATE. WAVES
SUBSIDING TO CALM TO 2 FEET.
FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING EAST BY MID AFTERNOON.
WAVES CALM TO 2 FEET.
FRIDAY NIGHT
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
SATURDAY NIGHT
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
SUNDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET.
MONDAY
NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
LSZ263-031000-
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-
952 PM EDT WED APR 2 2025
..GALE WARNING IN EFFECT THROUGH THURSDAY AFTERNOON
REST OF TONIGHT
EAST GALES TO 40 KNOTS BECOMING SOUTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT, THEN BECOMING WEST GALES TO
35 KNOTS LATE. A SLIGHT CHANCE OF SLEET BY LATE EVENING. A CHANCE
OF RAIN AND SNOW. WAVES 15 TO 20 FEET OCCASIONALLY TO 25 FEET
SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET, THEN BUILDING
TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
THURSDAY
WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
THURSDAY NIGHT
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT, THEN VEERING NORTHWEST LATE. WAVES
SUBSIDING TO CALM TO 2 FEET.
FRIDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
FRIDAY NIGHT
EAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
SATURDAY
NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
SATURDAY NIGHT
WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
SUNDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
MONDAY
NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
LSZ264-031000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
952 PM EDT WED APR 2 2025
..STORM WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
..GALE WARNING IN EFFECT THROUGH THURSDAY AFTERNOON
REST OF TONIGHT
EAST GALES TO 40 KNOTS BECOMING SOUTHEAST
20 TO 30 KNOTS AFTER MIDNIGHT, THEN BECOMING WEST GALES TO
35 KNOTS LATE. SNOW LIKELY, POSSIBLY MIXED WITH SLEET BY LATE
EVENING. A CHANCE OF RAIN. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES
15 TO 20 FEET OCCASIONALLY TO 25 FEET SUBSIDING TO 7 TO 10 FEET
OCCASIONALLY TO 13 FEET, THEN BUILDING TO 8 TO 11 FEET
OCCASIONALLY TO 14 FEET.
THURSDAY
WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
LATE. A CHANCE OF SNOW SHOWERS, POSSIBLY MIXED WITH RAIN THROUGH
EARLY AFTERNOON. WAVES SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO
10 FEET.
THURSDAY NIGHT
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT, THEN VEERING NORTHWEST LATE. WAVES
SUBSIDING TO CALM TO 2 FEET.
FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
FRIDAY NIGHT
SOUTHEAST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
SATURDAY
NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
SATURDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET, THEN
SUBSIDING TO 1 TO 3 FEET.
SUNDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. WAVES BUILDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
MONDAY
NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET.
LSZ265-031000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
952 PM EDT WED APR 2 2025
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
...GALE WARNING IN EFFECT FROM 5 AM EDT THURSDAY THROUGH THURSDAY
AFTERNOON...
REST OF TONIGHT
SOUTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT, THEN BECOMING SOUTHWEST GALES TO
35 KNOTS LATE. A CHANCE OF RAIN BY LATE EVENING. A SLIGHT CHANCE
OF SNOW AFTER MIDNIGHT. WAVES 10 TO 14 FEET OCCASIONALLY TO
18 FEET SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET, THEN
BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
THURSDAY
WEST GALES TO 35 KNOTS DIMINISHING TO 15 TO 25 KNOTS
LATE. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
THURSDAY NIGHT
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS LATE. WAVES SUBSIDING TO CALM TO 2 FEET.
FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING EAST BY MID AFTERNOON.
WAVES CALM TO 2 FEET.
FRIDAY NIGHT
SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
SATURDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
SATURDAY NIGHT
WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. A CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO
7 FEET.
MONDAY
NORTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
LSZ266-031000-
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-
952 PM EDT WED APR 2 2025
..STORM WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
...GALE WARNING IN EFFECT FROM 5 AM EDT THURSDAY THROUGH THURSDAY
AFTERNOON...
REST OF TONIGHT
SOUTHEAST GALES TO 45 KNOTS BECOMING SOUTHWEST
GALES TO 35 KNOTS LATE. A CHANCE OF RAIN. WAVES 15 TO 20 FEET
OCCASIONALLY TO 25 FEET SUBSIDING TO 6 TO 9 FEET OCCASIONALLY TO
11 FEET.
THURSDAY
WEST GALES TO 40 KNOTS DIMINISHING TO 20 TO 30 KNOTS
LATE. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS THROUGH EARLY
AFTERNOON. WAVES BUILDING TO 10 TO 14 FEET OCCASIONALLY TO
18 FEET, THEN SUBSIDING TO 7 TO 10 FEET OCCASIONALLY TO 13 FEET.
THURSDAY NIGHT
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT, THEN DIMINISHING TO 5 TO 15 KNOTS LATE. WAVES
SUBSIDING TO 1 TO 3 FEET.
FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING EAST BY MID AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET.
FRIDAY NIGHT
SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
SATURDAY
NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
SATURDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 2 TO 4 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. WAVES
BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
MONDAY
NORTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
LSZ267-031000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
952 PM EDT WED APR 2 2025
..STORM WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
...GALE WARNING IN EFFECT FROM 8 AM EDT THURSDAY THROUGH THURSDAY
AFTERNOON...
REST OF TONIGHT
SOUTHEAST GALES TO 45 KNOTS BECOMING SOUTHWEST
20 TO 30 KNOTS LATE. A CHANCE OF RAIN. WAVES 12 TO 17 FEET
OCCASIONALLY TO 21 FEET SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO
9 FEET, THEN BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
THURSDAY
WEST GALES TO 40 KNOTS. A SLIGHT CHANCE OF RAIN AND
SNOW SHOWERS THROUGH EARLY AFTERNOON. WAVES BUILDING TO 10 TO
14 FEET OCCASIONALLY TO 18 FEET, THEN SUBSIDING TO 8 TO 11 FEET
OCCASIONALLY TO 14 FEET.
THURSDAY NIGHT
WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING EAST BY MID AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET.
FRIDAY NIGHT
EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
SATURDAY
NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
SATURDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 2 TO 4 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. WAVES
BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
MONDAY
NORTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 4 TO
7 FEET OCCASIONALLY TO 9 FEET, THEN SUBSIDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
LSZ261-031000-
MAFOR 0303/
SUPERIOR WEST...GALE WARNING IN EFFECT...11250 14640 11640 11620
11610. A CHANCE OF RAIN AND SNOW OVERNIGHT. A CHANCE OF SNOW
THURSDAY MORNING. WAVES 8 TO 12 FEET SUBSIDING TO 5 TO 8 FEET
OVERNIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 6 FEET THURSDAY.
WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET THURSDAY EVENING.
SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11357 11450
13650 11640 11630 11620. A CHANCE OF RAIN OVERNIGHT. A CHANCE OF
SNOW SHOWERS AND RAIN THURSDAY MORNING. WAVES 13 TO 18 FEET
SUBSIDING TO 10 TO 13 FEET OVERNIGHT. WAVES 7 TO 11 FEET
THURSDAY. WAVES 5 TO 8 FEET SUBSIDING TO 3 TO 6 FEET THURSDAY
EVENING.
SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11340 11430
11550 13650 11630 11620. WAVES 8 TO 12 FEET SUBSIDING TO 5 TO 8
FEET OVERNIGHT. WAVES 5 TO 9 FEET THURSDAY. WAVES 3 TO 6 FEET
THURSDAY EVENING.
SUPERIOR EAST...GALE WARNING IN EFFECT...11360 11440 12550 12650
11640 11630. A CHANCE OF RAIN OVERNIGHT. WAVES 12 TO 16 FEET
SUBSIDING TO 6 TO 9 FEET OVERNIGHT. WAVES 5 TO 8 FEET BUILDING TO
10 TO 14 FEET THURSDAY. WAVES 9 TO 12 FEET SUBSIDING TO 6 TO 9
FEET THURSDAY 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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