772
FZUS63 KMQT 190211
GLFLS
OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
911 PM EST SAT JAN 18 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 TIGHT PRESSURE GRADIENT WILL CONTINUE OVER THE AREA
BETWEEN AN EXITING LOW PRESSURE SYSTEM AND HIGH PRESSURE BUILDING
TO 31.0 INCHES OVER THE HIGH PLAINS. RIDGING BUILDS TO BETWEEN
30.4 AND 30.6 INCHES ACROSS THE LAKE BY MONDAY NIGHT/TUESDAY AS
THE SPRAWLING SURFACE HIGH DESCENDS TOWARDS THE MID MISSISSIPPI
VALLEY. THEN, A WEAK CLIPPER LOW OF 30.0 INCHES PASSES EAST OVER
LAKE SUPERIOR WEDNESDAY NIGHT INTO THURSDAY.
LSZ162-191015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
911 PM EST SAT JAN 18 2025 /811 PM CST SAT JAN 18 2025/
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SUNDAY
AFTERNOON...
REST OF TONIGHT
NORTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. A CHANCE OF SNOW SHOWERS. WAVES 4 TO 7 FEET OCCASIONALLY
TO 9 FEET SUBSIDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
SUNDAY
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
SUNDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS. WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET, THEN SUBSIDING
TO 2 TO 4 FEET.
MONDAY
NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW SHOWERS.
WAVES 2 TO 4 FEET.
MONDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET,
THEN SUBSIDING TO 2 TO 4 FEET.
TUESDAY
WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
TUESDAY NIGHT
SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES BUILDING
TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
WEDNESDAY
SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
THURSDAY
NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST. WAVES
BUILDING TO 1 TO 3 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ263-191015-
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-
911 PM EST SAT JAN 18 2025
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SUNDAY
AFTERNOON...
REST OF TONIGHT
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS LATE. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES 5 TO 8 FEET OCCASIONALLY TO 10 FEET SUBSIDING TO
3 TO 6 FEET OCCASIONALLY TO 8 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY LATE MORNING, THEN INCREASING TO 15 TO 25 KNOTS BY
MID AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING. SNOW SHOWERS.
WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
SUNDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS BY MIDNIGHT. HEAVY FREEZING SPRAY IN THE EVENING.
SNOW SHOWERS. WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
MONDAY
NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW SHOWERS
IN THE MORNING, THEN SNOW SHOWERS IN THE AFTERNOON. WAVES 3 TO
6 FEET OCCASIONALLY TO 8 FEET.
MONDAY NIGHT
NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS.
WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
TUESDAY
WEST WINDS 15 TO 25 KNOTS. HEAVY FREEZING SPRAY. SNOW
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
TUESDAY NIGHT
SOUTHWEST WINDS 15 TO 25 KNOTS. HEAVY FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
WEDNESDAY
SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 10 TO
20 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET.
THURSDAY
NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ264-191015-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
911 PM EST SAT JAN 18 2025
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY
EVENING...
REST OF TONIGHT
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS LATE. HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY.
WAVES 5 TO 8 FEET OCCASIONALLY TO 10 FEET SUBSIDING TO 3 TO
6 FEET OCCASIONALLY TO 8 FEET.
SUNDAY
NORTHWEST WINDS 10 TO 20 KNOTS. HEAVY FREEZING SPRAY IN
THE MORNING. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
SUNDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH BY
MIDNIGHT, THEN BACKING NORTHWEST LATE. HEAVY FREEZING SPRAY IN
THE EVENING. SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
MONDAY
NORTHWEST WINDS 10 TO 20 KNOTS. SNOW SHOWERS. WAVES
3 TO 6 FEET OCCASIONALLY TO 8 FEET.
MONDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS. SNOW SHOWERS.
WAVES 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
TUESDAY
WEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS. HEAVY
FREEZING SPRAY IN THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET
OCCASIONALLY TO 9 FEET.
TUESDAY NIGHT
WEST WINDS 20 TO 30 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS. WAVES
BUILDING TO 6 TO 9 FEET OCCASIONALLY TO 11 FEET.
WEDNESDAY
SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET.
THURSDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
3 TO 5 FEET OCCASIONALLY TO 7 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ265-191015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
911 PM EST SAT JAN 18 2025
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY
EVENING...
REST OF TONIGHT
NORTHWEST WINDS TO 30 KNOTS WITH A FEW GALE
FORCE GUSTS TO 35 KNOTS POSSIBLE DIMINISHING TO 20 TO 30 KNOTS BY
MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES 4 TO
7 FEET OCCASIONALLY TO 9 FEET SUBSIDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS. HEAVY FREEZING SPRAY IN
THE MORNING. NUMEROUS SNOW SHOWERS. WAVES 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
SUNDAY NIGHT
NORTHWEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS.
WAVES 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
MONDAY
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
MONDAY NIGHT
WEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
TUESDAY
WEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS IN THE
MORNING, THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON. WAVES
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
TUESDAY NIGHT
SOUTHWEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
WEDNESDAY
SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
THURSDAY
WEST WINDS 15 TO 25 KNOTS. WAVES CALM TO 2 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ266-191015-
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-
911 PM EST SAT JAN 18 2025
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY
EVENING...
REST OF TONIGHT
NORTHWEST WINDS TO 30 KNOTS WITH A FEW GALE
FORCE GUSTS TO 35 KNOTS POSSIBLE DIMINISHING TO 20 TO 30 KNOTS BY
MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS. WAVES 7 TO 10 FEET
OCCASIONALLY TO 13 FEET SUBSIDING TO 5 TO 8 FEET OCCASIONALLY TO
10 FEET.
SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. HEAVY FREEZING SPRAY. SNOW SHOWERS.
WAVES SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
SUNDAY NIGHT
NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS BY MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS.
WAVES BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET.
MONDAY
NORTHWEST WINDS 15 TO 25 KNOTS. HEAVY FREEZING SPRAY.
SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET OCCASIONALLY TO
9 FEET.
MONDAY NIGHT
NORTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. SNOW SHOWERS. WAVES BUILDING TO 4 TO 8 FEET OCCASIONALLY
TO 10 FEET.
TUESDAY
WEST WINDS 15 TO 25 KNOTS. HEAVY FREEZING SPRAY. SNOW
SHOWERS. WAVES 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
TUESDAY NIGHT
SOUTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 5 TO 9 FEET
OCCASIONALLY TO 11 FEET.
WEDNESDAY
SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 4 TO 8 FEET OCCASIONALLY TO 10 FEET.
THURSDAY
WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
5 FEET OCCASIONALLY TO 7 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ267-191015-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
911 PM EST SAT JAN 18 2025
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH MONDAY
EVENING...
REST OF TONIGHT
NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH
15 TO 25 KNOTS BY MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS. WAVES
7 TO 10 FEET OCCASIONALLY TO 13 FEET SUBSIDING TO 5 TO 8 FEET
OCCASIONALLY TO 10 FEET.
SUNDAY
NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST BY LATE
MORNING, THEN BACKING NORTHWEST BY MID AFTERNOON. SNOW SHOWERS.
FREEZING SPRAY IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET, THEN BUILDING TO 4 TO 7 FEET OCCASIONALLY
TO 9 FEET.
SUNDAY NIGHT
NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
MONDAY
NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH IN THE
AFTERNOON. SNOW SHOWERS. WAVES BUILDING TO 4 TO 7 FEET
OCCASIONALLY TO 9 FEET.
MONDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
15 TO 25 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW
SHOWERS. WAVES 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
TUESDAY
WEST WINDS 15 TO 25 KNOTS. HEAVY FREEZING SPRAY. SNOW
SHOWERS. WAVES 4 TO 7 FEET OCCASIONALLY TO 9 FEET.
TUESDAY NIGHT
SOUTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 4 TO 8 FEET
OCCASIONALLY TO 10 FEET.
WEDNESDAY
SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 5 TO 8 FEET OCCASIONALLY TO 10 FEET, THEN SUBSIDING
TO 2 TO 4 FEET.
THURSDAY
WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
FREEZING SPRAY. WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO
7 FEET.
NOTE, WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.
LSZ261-191015-
MAFOR 1904/
SUPERIOR WEST...HEAVY FREEZING SPRAY WARNING...13742 14737 11737.
WAVES 3 TO 7 FEET.
SUPERIOR NORTH CENTRAL...HEAVY FREEZING SPRAY WARNING...12747
12737 13727 11737. WAVES 3 TO 7 FEET.
SUPERIOR SOUTH CENTRAL...HEAVY FREEZING SPRAY WARNING...11747
12737 12727 13737. WAVES 3 TO 8 FEET.
SUPERIOR EAST...HEAVY FREEZING SPRAY WARNING...13737 12827 11727
11737 11837. WAVES 4 TO 9 FEET.
07
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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