Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 290147
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
947 PM EDT THU APR 28 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.5 INCH HIGH PRESSURE CENTERED OVER WESTERN HUDSON
BAY WILL MOVE SLOWLY EASTWARD THROUGH THE WEEKEND...REACHING
NORTHERN QUEBEC ON SUNDAY. MEANWHILE A 29.8 INCH LOW PRESSURE OVER
THE CENTRAL APPALACHIANS TONIGHT WILL MOVE INTO THE MID ATLANTIC
STATES ON SUNDAY WHILE WEAKENING TO 30.0 INCHES. ANOTHER 29.6 INCH
LOW DEVELOPING IN THE CENTRAL PLAINS ON SATURDAY WILL TRACK THROUGH
THE OHIO VALLEY ON SUNDAY...REACHING THE MID ATLANTIC STATES ON
MONDAY WHILE WEAKENING TO 29.9 INCHES. IN ITS WAKE...A 30.4 INCH
HIGH PRESSURE IN THE PLAINS WILL EXPAND INTO THE WESTERN GREAT LAKES
ON MONDAY. A 30.1 INCH HIGH PRESSURE RIDGE WILL BUILD OVER THE UPPER
GREAT LAKES MONDAY AFTERNOON AND SLIDE SOUTHWARD TO THE LOWER GREAT
LAKES TUESDAY...AS A 29.5 INCH LOW PRESSURE MAKES ITS WAY FROM
NORTHERN MANITOBA TO NORTHERN ONTARIO.

LSZ162-291000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
947 PM EDT THU APR 28 2016 /847 PM CDT THU APR 28 2016/

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES 2 TO
4 FEET SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. WAVES CALM
TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. WAVES CALM TO
2 FEET.

$$

LSZ263-291000-
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-
947 PM EDT THU APR 28 2016

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES 2 TO
4 FEET SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. WAVES
BUILDING TO 1 TO 3 FEET.

$$

LSZ264-291000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
947 PM EDT THU APR 28 2016

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. WAVES
BUILDING TO 2 TO 4 FEET.

$$

LSZ265-291000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
947 PM EDT THU APR 28 2016

.REST OF TONIGHT...NORTH WINDS LESS THAN 10 KNOTS BACKING
NORTHWEST AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. A CHANCE OF
RAIN SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.

$$

LSZ266-291000-
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-
947 PM EDT THU APR 28 2016

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST
LESS THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS LESS THAN 10 KNOTS VEERING NORTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. A CHANCE OF
RAIN SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.

$$

LSZ267-291000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
947 PM EDT THU APR 28 2016

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
LESS THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM TO
2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 1 TO
3 FEET.

$$
LSZ261-291000-
MAFOR 2903/
SUPERIOR WEST 11110 12100 14800 11100. WAVES 1 TO 3 FEET.
OVERNIGHT. WAVES 1 FOOT OR LESS FRIDAY AND FRIDAY EVENING.

SUPERIOR NORTH CENTRAL 15800 11800 11700. WAVES 1 FOOT OR LESS.

SUPERIOR SOUTH CENTRAL 11800 12700 11600 11700 13800. WAVES 2
FEET OR LESS.

SUPERIOR EAST 11800 11100 13300 11500 12700. WAVES 1 FOOT OR
LESS.

$$

JS


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