Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 280804
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
404 AM EDT TUE MAR 28 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...HIGH PRESSURE 30.6 INCHES OVER HUDSON BAY WILL
EXTEND A RIDGE OF 30.4 INCHES OVER THE WESTERN GREAT LAKES THROUGH
WEDNESDAY MORNING. THIS RIDGE WILL MOVE TO THE LOWER GREAT LAKES
AND MID ATLANTIC STATES ON THURSDAY WHILE LOW PRESSURE OF 29.5
INCHES OVER THE SOUTHERN PLAINS LIFTS NORTHEAST TO THE MIDDLE
MISSISSIPPI RIVER VALLEY. THE LOW WILL THEN MOVE ACROSS THE OHIO
VALLEY ON FRIDAY WHILE A 30.1 INCH RIDGE EXTENDS FROM QUEBEC TO
THE UPPER GREAT LAKES. A 30.0 INCH LOW WILL MOVE ACROSS NORTHERN
ONTARIO ON SATURDAY AS AN ASSOCIATED QUICK MOVING TROUGH SWEEPS
ACROSS LAKE SUPERIOR.

LSZ162-281615-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
404 AM EDT TUE MAR 28 2017 /304 AM CDT TUE MAR 28 2017/

.EARLY THIS MORNING...SOUTHWEST WINDS LESS THAN 10 KNOTS. WAVES
CALM TO 2 FEET.
.TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES
CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST. WAVES
CALM TO 2 FEET.

$$

LSZ263-281615-
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-
404 AM EDT TUE MAR 28 2017

.EARLY THIS MORNING...WEST WINDS LESS THAN 10 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES
CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST. A CHANCE
OF RAIN. WAVES CALM TO 2 FEET.

$$

LSZ264-281615-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
404 AM EDT TUE MAR 28 2017

.EARLY THIS MORNING...NORTH WINDS LESS THAN 10 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING WEST. WAVES CALM
TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST. A CHANCE
OF RAIN...POSSIBLY MIXED WITH SNOW. WAVES CALM TO 2 FEET.

$$

LSZ265-281615-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
404 AM EDT TUE MAR 28 2017

.EARLY THIS MORNING...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TODAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.

$$

LSZ266-281615-
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-
404 AM EDT TUE MAR 28 2017

.EARLY THIS MORNING...NORTH WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES 1 TO 3 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.

$$

LSZ267-281615-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
404 AM EDT TUE MAR 28 2017

.EARLY THIS MORNING...NORTH WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. WAVES CALM TO
2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. A CHANCE OF RAIN. A CHANCE OF SNOW. WAVES CALM TO
2 FEET.

$$

LSZ261-281615-
MAFOR 2809/
SUPERIOR WEST 12500 11700 11110 12210 12220. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 11700 11800 12110 11100 12110 11220.
PATCHY FOG THIS MORNING. WAVES 1 TO 2 FEET.

SUPERIOR SOUTH CENTRAL 11700 11610 11700 13800 11810 11110.
PATCHY FOG THIS MORNING. WAVES 2 FEET OR LESS.

SUPERIOR EAST 13100 12800 11810 12120. WAVES 1 TO 3 FEET.

$$

ROLFSON


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