255
FZUS63 KMQT 261938
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
338 PM EDT FRI JUL 26 2024
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 30.2 INCH HIGH WILL REMAIN ANCHORED OVER THE GREAT
LAKES BASIN THIS EVENING. AS THE HIGH WEAKENS AND SHIFTS EASTWARD
OVERNIGHT, EXPECT 29.5 INCH TROUGHING TO DEVELOP OVER THE NORTHERN
PLAINS SATURDAY. THIS TROUGH WILL GRADUALLY FILL TO 29.7 INCHES AS
IT SETTLES EASTWARD OVER LAKE SUPERIOR MONDAY INTO EARLY TUESDAY.
WEAK HIGH PRESSURE FOLLOWS ON WEDNESDAY AT 29.8 INCHES.
LSZ162-270345-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
338 PM EDT FRI JUL 26 2024 /238 PM CDT FRI JUL 26 2024/
LATE THIS AFTERNOON
SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
TONIGHT
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS LATE. WAVES BUILDING TO 2 TO 4 FEET, THEN SUBSIDING TO
1 TO 3 FEET.
SATURDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET, THEN BUILDING TO 1 TO 3 FEET.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
MONDAY
SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON. A CHANCE OF THUNDERSTORMS. SHOWERS LIKELY BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
MONDAY NIGHT
WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
TUESDAY
SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
WEDNESDAY
SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.
LSZ263-270345-
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-
338 PM EDT FRI JUL 26 2024
LATE THIS AFTERNOON
SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
TONIGHT
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT, THEN DIMINISHING TO 10 TO 20 KNOTS LATE.
WAVES BUILDING TO 2 TO 4 FEET.
SATURDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT, THEN BECOMING SOUTHWEST 10 TO 20 KNOTS
LATE. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET, THEN
SUBSIDING TO 2 TO 4 FEET.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET,
THEN SUBSIDING TO 1 TO 3 FEET.
SUNDAY NIGHT
SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
MONDAY
SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON. A CHANCE OF THUNDERSTORMS. SHOWERS LIKELY BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
MONDAY NIGHT
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES CALM TO 2 FEET.
TUESDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.
WEDNESDAY
SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
LSZ264-270345-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
338 PM EDT FRI JUL 26 2024
LATE THIS AFTERNOON
SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
TONIGHT
SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO
7 FEET, THEN SUBSIDING TO 2 TO 4 FEET.
SATURDAY
SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS LATE. WAVES SUBSIDING TO 1 TO 3 FEET.
SATURDAY NIGHT
SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT, THEN VEERING SOUTHWEST LATE. WAVES
BUILDING TO 2 TO 4 FEET.
SUNDAY
SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
SUNDAY NIGHT
SOUTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
MONDAY
SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
MONDAY NIGHT
SOUTH WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
TUESDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.
WEDNESDAY
SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
LSZ265-270345-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
338 PM EDT FRI JUL 26 2024
LATE THIS AFTERNOON
SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
TONIGHT
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
SATURDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET, THEN SUBSIDING TO CALM TO 2 FEET.
SUNDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
MONDAY
SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
MONDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
TUESDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.
WEDNESDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.
LSZ266-270345-
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-
338 PM EDT FRI JUL 26 2024
LATE THIS AFTERNOON
SOUTH WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
TONIGHT
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT, THEN DIMINISHING TO 10 TO 20 KNOTS LATE.
WAVES BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET, THEN
SUBSIDING TO 2 TO 4 FEET.
SATURDAY
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS LATE. WAVES SUBSIDING TO 1 TO 3 FEET, THEN BUILDING TO
2 TO 4 FEET.
SATURDAY NIGHT
SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
3 TO 6 FEET OCCASIONALLY TO 8 FEET, THEN SUBSIDING TO 2 TO
4 FEET.
SUNDAY
SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET, THEN SUBSIDING TO 1 TO 3 FEET.
MONDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
MONDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
TUESDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.
WEDNESDAY
SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
LSZ267-270345-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
338 PM EDT FRI JUL 26 2024
LATE THIS AFTERNOON
SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM
TO 2 FEET.
TONIGHT
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
SATURDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET, THEN BUILDING TO 1 TO 3 FEET.
SATURDAY NIGHT
SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
SUNDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET, THEN SUBSIDING TO CALM TO 2 FEET.
MONDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
MONDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
TUESDAY
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
WEDNESDAY
SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
LSZ261-270345-
MAFOR 2621/
SUPERIOR WEST 11410 13420 11520 12420 11410. WAVES 1 TO 3 FEET.
SUPERIOR NORTH CENTRAL 11310 15420 11420. WAVES 1 TO 4 FEET.
SUPERIOR SOUTH CENTRAL 11320 12420 14410 11420. WAVES 1 TO 4 FEET.
SUPERIOR EAST 11310 15420 11410. WAVES 1 TO 4 FEET.
JSS
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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