Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 110748
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
348 AM EDT THU SEP 11 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.2 INCH LOW PRESSURE SYSTEM OVER SOUTHWEST QUEBEC
THIS MORNING WILL MOVE NORTHEAST INTO THE CANADIAN MARITIMES BY
FRIDAY MORNING WHILE A 30.6 INCH HIGH PRESSURE SYSTEM BUILDS INTO
THE NORTHERN PLAINS AND EXTENDS A RIDGE AXIS INTO THE UPPER GREAT
LAKES. EXPECT A WEAK LOW PRESSURE TROUGH AVERAGING 30.2 INCHES TO
SHIFT EAST THROUGH THE LOWER GREAT LAKES ON FRIDAY NIGHT TO THE
SOUTH OF THE LINGERING RIDGE AXIS ACROSS LAKE SUPERIOR. AFTER THIS
TROUGH SHIFTS TO THE NORTHEAST ON SATURDAY...THE PLAINS HIGH WILL
SHIFT INTO THE LOWER LAKES ON SUNDAY AND THEN INTO NEW ENGLAND ON
MONDAY WHILE WEAKENING TO 30.3 INCHES. A LOW PRESSURE TROUGH
AVERAGING 30.1 INCHES WILL FOLLOW ACROSS THE UPPER GREAT LAKES
SUNDAY NIGHT IN ADVANCE OF ANOTHER 30.2 INCH HIGH PRESSURE BUILDING
INTO THE NORTHERN PLAINS ON MONDAY.

LSZ162-111600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
348 AM EDT THU SEP 11 2014 /248 AM CDT THU SEP 11 2014/

.EARLY THIS MORNING...NORTH WINDS 15 TO 25 KNOTS. WAVES 5 TO
8 FEET.
.TODAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING WEST LESS THAN
10 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS.
WAVES CALM TO 2 FEET.

$$

LSZ263-111600-
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-
348 AM EDT THU SEP 11 2014

.EARLY THIS MORNING...NORTH WINDS 20 TO 30 KNOTS. WAVES 8 TO
11 FEET SUBSIDING TO 7 TO 10 FEET.
.TODAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-111600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
348 AM EDT THU SEP 11 2014

...GALE WARNING IN EFFECT UNTIL 4 AM EDT EARLY THIS MORNING...

.EARLY THIS MORNING...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30
KNOTS. WAVES 9 TO 12 FEET SUBSIDING TO 8 TO 11 FEET.
.TODAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO
CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ265-111600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
348 AM EDT THU SEP 11 2014

...GALE WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.EARLY THIS MORNING...NORTH GALES TO 35 KNOTS. A SLIGHT CHANCE OF
SHOWERS. WAVES 10 TO 14 FEET.
.TODAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS BY MID AFTERNOON. WAVES
CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS LESS THAN 10 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS. WAVES CALM
TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-111600-
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-
348 AM EDT THU SEP 11 2014

...GALE WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.EARLY THIS MORNING...NORTH GALES TO 35 KNOTS. A SLIGHT CHANCE OF
RAIN SHOWERS. WAVES 12 TO 17 FEET SUBSIDING TO 10 TO 14 FEET.
.TODAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS LESS THAN 10 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS. WAVES
CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. A CHANCE
OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ267-111600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
348 AM EDT THU SEP 11 2014

...GALE WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.EARLY THIS MORNING...NORTH GALES TO 35 KNOTS. WAVES 6 TO
10 FEET.
.TODAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO 4 TO 8 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. A CHANCE
OF SHOWERS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO
CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-111600-
MAFOR 1109/
SUPERIOR WEST 11840 12830 11820 11700 11610 11710 11810. WAVES 4 TO 9
FEET TODAY. WAVES 4 FEET OR LESS TONIGHT.

SUPERIOR NORTH CENTRAL 12840 11830 14820 11810.  WAVES 9 TO 12 FEET
SUBSIDING TO 4 TO 6 FEET TODAY. WAVES 1 TO 4 FEET TONIGHT.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11850 12840 12830
12820 11810. SLIGHT CHANCE OF RAIN SHOWERS THIS MORNING. WAVES 11 TO
15 FEET SUBSIDING TO 5 TO 7 FEET TODAY. WAVES 2 TO 6 FEET TONIGHT.

SUPERIOR EAST...GALE WARNING IN EFFECT...11850 12840 11830 13820
11110. WAVES 7 TO 10 FEET SUBSIDING TO 4 TO 6 FEET TODAY. WAVES 1 TO
5 FEET TONIGHT.

$$

KF




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