Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 081958
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
358 PM EDT MON SEP 8 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.6 INCH TROUGH ACROSS NORTHWEST ONTARIO WILL WEAKEN
TO 29.9 INCHES AS IT CROSSES LAKE SUPERIOR TUESDAY. MEANWHILE...30.3
INCH HIGH PRESSURE OVER NEW ENGLAND WILL MOVE EASTWARD. A STRONGER
LOW PRESSURE SYSTEM OF 29.5 INCHES ORGANIZING ACROSS THE CENTRAL
PLAINS TUESDAY WILL SHIFT NORTHEAST ACROSS WISCONSIN ON WEDNESDAY AT
29.3 INCHES...AND ACROSS EASTERN UPPER MICHIGAN AND NORTHERN LOWER
MICHIGAN LATE WEDNESDAY AFTERNOON INTO WEDNESDAY EVENING...BEFORE
CONTINUING NORTHEAST INTO QUEBEC AT 29.2 INCHES ON THURSDAY. IN THE
MEANTIME...LARGE 30.5 INCH HIGH PRESSURE OVER SOUTHERN ALBERTA AND
SASKATCHEWAN THURSDAY WILL SINK ACROSS THE NORTHERN AND CENTRAL
PLAINS...WHILE BUILDING A 30.2 INCH RIDGE ACROSS LAKE SUPERIOR ON
THURSDAY NIGHT AND FRIDAY. A 30.3 INCH HIGH PRESSURE WILL REMAIN OVER
THE OHIO VALLEY THROUGH SUNDAY.

LSZ162-090400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
358 PM EDT MON SEP 8 2014 /258 PM CDT MON SEP 8 2014/

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE
WEDNESDAY NIGHT...

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. SHOWERS. WAVES BUILDING TO 8 TO 11 FEET.
.WEDNESDAY...NORTHEAST GALES TO 35 KNOTS BACKING NORTH BY MID
AFTERNOON. RAIN THROUGH EARLY AFTERNOON...THEN A CHANCE OF RAIN.
WAVES BUILDING TO 10 TO 14 FEET.
.WEDNESDAY NIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 15 TO 25
KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES SUBSIDING TO 8 TO
11 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING TO 2
TO 4 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ263-090400-
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-
358 PM EDT MON SEP 8 2014

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE
WEDNESDAY NIGHT...

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO
3 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. WAVES BUILDING TO 2 TO 4 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. SHOWERS. WAVES BUILDING TO 7 TO 10 FEET.
.WEDNESDAY...NORTHEAST GALES 35 KNOTS INCREASING TO 45 KNOTS BY MID
AFTERNOON. RAIN. WAVES BUILDING TO 11 TO 15 FEET.
.WEDNESDAY NIGHT...NORTH GALES TO 45 KNOTS DIMINISHING TO 35 KNOTS
LATE. SHOWERS LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS.
WAVES BUILDING TO 12 TO 17 FEET...THEN SUBSIDING TO 9 TO 12 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING TO 3
TO 6 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-090400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
358 PM EDT MON SEP 8 2014

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY
MORNING...

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO
3 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING NORTH BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT...THEN SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 6 TO 9 FEET.
.WEDNESDAY...NORTHEAST GALES TO 35 KNOTS INCREASING TO 45 KNOTS BY
MID AFTERNOON. RAIN. WAVES BUILDING TO 11 TO 15 FEET.
.WEDNESDAY NIGHT...NORTH GALES TO 45 KNOTS DIMINISHING TO 35 KNOTS
LATE. RAIN LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS. WAVES
BUILDING TO 12 TO 17 FEET...THEN SUBSIDING TO 9 TO 12 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 1 TO 3 FEET.

$$

LSZ265-090400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
358 PM EDT MON SEP 8 2014

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY
MORNING...

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO 3
FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT...THEN
SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO GALES TO 35
KNOTS BY MID AFTERNOON. RAIN. WAVES BUILDING TO 10 TO 14 FEET.
.WEDNESDAY NIGHT...NORTH GALES TO 40 KNOTS. RAIN. WAVES BUILDING
TO 12 TO 17 FEET...THEN SUBSIDING TO 10 TO 14 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO 5 TO 8 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 1 TO 3 FEET.

$$

LSZ266-090400-
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-
358 PM EDT MON SEP 8 2014

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY
MORNING...

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO
3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST
AFTER MIDNIGHT. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS THROUGH MIDNIGHT...THEN SHOWERS. WAVES BUILDING TO 5
TO 8 FEET.
.WEDNESDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST GALES
TO 35 KNOTS BY MID AFTERNOON. RAIN. WAVES BUILDING TO 10 TO
14 FEET.
.WEDNESDAY NIGHT...NORTH GALES TO 40 KNOTS. RAIN THROUGH
MIDNIGHT...THEN A CHANCE OF SHOWERS. WAVES BUILDING TO 12 TO 17
FEET...THEN SUBSIDING TO 10 TO 14 FEET.
.THURSDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING TO 5 TO 8
FEET.
.THURSDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES SUBSIDING TO
3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
BUILDING TO 1 TO 3 FEET.

$$

LSZ267-090400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
358 PM EDT MON SEP 8 2014

...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY
MORNING...

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO
3 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT...THEN
SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO GALES TO 35
KNOTS BY LATE AFTERNOON. RAIN. WAVES BUILDING TO 6 TO 10 FEET.
.WEDNESDAY NIGHT...NORTHEAST GALES TO 35 KNOTS BACKING NORTH AFTER
MIDNIGHT. RAIN LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS.
WAVES 6 TO 10 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS. WAVES
6 TO 10 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.

$$

LSZ261-090400-
MAFOR 0821/
SUPERIOR WEST 12430 12410 12510 11400 11310. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS TUESDAY. WAVES 3 FEET OR LESS.

SUPERIOR NORTH CENTRAL 12430 12420 11420 11410 11510 11600. SLIGHT
CHANCE OF SHOWERS OVERNIGHT AND TUESDAY. SLIGHT CHANCE OF
THUNDERSTORMS TUESDAY AFTERNOON. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 12430 12420 13410 11310. WAVES 1 TO 3 FEET.

SUPERIOR EAST 12430 12420 11420 12410 11400. WAVES 1 TO 3 FEET.

$$

KLUBER




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