Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 030204
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1004 PM EDT WED SEP 2 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.9 INCH HIGH PRESSURE RIDGE OVER THE UPPER GREAT
LAKES WILL SLOWLY DISSIPATE THROUGH SATURDAY AS A 30.2 INCH HIGH
PRESSURE...CENTERED OVER NORTHERN QUEBEC...MOVES SOUTHWARD TO NEW
ENGLAND. A 29.5 INCH LOW PRESSURE TROUGH EXTENDING FROM NORTHERN
MANITOBA TO THE CENTRAL PLAINS ON THURSDAY EVENING WILL SLIDE
EASTWARD THROUGH SATURDAY EVENING...EXTENDING FROM WESTERN ONTARIO TO
THE CENTRAL PLAINS. THE HIGH PRESSURE OVER NEW ENGLAND WILL WEAKEN
SLIGHTLY THROUGH SUNDAY EVENING. A 29.5 INCH LOW PRESSURE SYSTEM OVER
SOUTHERN MANITOBA SUNDAY EVENING WILL STRENGTHEN TO 29.3 INCHES
MONDAY MORNING...AND SEND A 29.7 INCH TROUGH OVER THE UPPER GREAT
LAKES THROUGH MONDAY EVENING.

LSZ162-031015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1004 PM EDT WED SEP 2 2015 /904 PM CDT WED SEP 2 2015/

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. AREAS OF FOG.
WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. AREAS OF FOG THROUGH
EARLY AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM
TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS
LIKELY. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. WAVES CALM
TO 2 FEET.

$$

LSZ263-031015-
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-
1004 PM EDT WED SEP 2 2015

.REST OF TONIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. AREAS OF FOG THROUGH
EARLY AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM
TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN SHOWERS
AND THUNDERSTORMS LIKELY. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-031015-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1004 PM EDT WED SEP 2 2015

.REST OF TONIGHT...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG. WAVES
CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING...THEN SHOWERS AND THUNDERSTORMS
LIKELY. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-031015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1004 PM EDT WED SEP 2 2015

.REST OF TONIGHT...EAST WINDS 5 TO 15 KNOTS. ISOLATED SHOWERS THROUGH
MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ266-031015-
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-
1004 PM EDT WED SEP 2 2015

.REST OF TONIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. AREAS OF FOG. ISOLATED SHOWERS. WAVES CALM TO
2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. AREAS OF FOG. WAVES
CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES 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. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.

$$

LSZ267-031015-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1004 PM EDT WED SEP 2 2015

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. AREAS OF FOG. ISOLATED SHOWERS. WAVES CALM TO
2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. AREAS OF FOG. WAVES
CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG. WAVES
CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. SHOWERS AND THUNDERSTORMS
LIKELY. WAVES CALM TO 2 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$
LSZ261-031015-
MAFOR 0303/
SUPERIOR WEST 11100 12103 11113 13110 11210. PATCHY FOG LATE THIS
EVENING AND THURSDAY. WAVES 1 TO 2 FEET.

SUPERIOR NORTH CENTRAL 11200 11203 12103 11200 11100 12200.
PATCHY FOG LATE THIS EVENING AND THURSDAY AFTERNOON. WAVES 1 FOOT OR
LESS.

SUPERIOR SOUTH CENTRAL 11303 11203 12103 13100 11200. PATCHY FOG
EARLY THURSDAY AFTERNOON. WAVES 1 FOOT OR LESS.

SUPERIOR EAST 11703 13103 13100 11103. PATCHY FOG LATE THURSDAY.
WAVES 1 FOOT OR LESS.

$$

KEC


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