Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 211400
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1000 AM EDT FRI AUG 21 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...AS A 30.1 INCH HIGH PRESSURE RIDGE OVER THE OHIO VALLEY
THIS MORNING DRIFTS SLOWLY NORTHEAST AND INTO NEW ENGLAND ON
SUNDAY...A 29.5 INCH LOW PRESSURE DEVELOPING OVER MONTANA TODAY WILL
MOVE TO NORTHWEST ONTARIO AND DEEPEN TO 29.4 INCHES. EXPECT THIS LOW
TO DRAG A COLD FRONT ACROSS THE UPPER GREAT LAKES ON SUNDAY AS IT
EDGES SLOWLY TO THE EAST. THE LOW WILL CONTINUE TO NEAR JAMES BAY ON
TUESDAY AND WEAKEN TO 29.7 INCHES. A TRAILING 30.2 INCH HIGH PRESSURE
RIDGE IN THE PLAINS ON MONDAY WILL THEN MOVE THROUGH THE UPPER
MISSISSIPPI RIVER VALLEY AND INTO THE WESTERN GREAT LAKES ON TUESDAY
NIGHT.

LSZ162-212200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1000 AM EDT FRI AUG 21 2015 /900 AM CDT FRI AUG 21 2015/

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. SHOWERS AND THUNDERSTORMS LIKELY. WAVES BUILDING
TO 2 TO 4 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO
3 TO 6 FEET.
.SUNDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. WAVES 3 TO 5 FEET.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-212200-
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-
1000 AM EDT FRI AUG 21 2015

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH MIDNIGHT...THEN SHOWERS AND
THUNDERSTORMS LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 3 TO
5 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30
KNOTS BY MID AFTERNOON. SHOWERS LIKELY THROUGH EARLY AFTERNOON.
WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO 3 TO 6 FEET.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-212200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1000 AM EDT FRI AUG 21 2015

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST BY
MID AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT...THEN SHOWERS AND
THUNDERSTORMS LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 3 TO
6 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 20 TO
30 KNOTS BY MID AFTERNOON. SHOWERS LIKELY THROUGH EARLY
AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO 3 TO 5 FEET.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS.
WAVES 3 TO 5 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-212200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1000 AM EDT FRI AUG 21 2015

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTHEAST BY
MID AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND A SLIGHT CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. SHOWERS LIKELY THROUGH EARLY AFTERNOON. WAVES
SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES BUILDING TO
2 TO 4 FEET.
.MONDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST. A CHANCE OF
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-212200-
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-
1000 AM EDT FRI AUG 21 2015

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 2 TO
4 FEET.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO
6 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. SHOWERS LIKELY THROUGH EARLY
AFTERNOON. A CHANCE OF SHOWERS BY MID AFTERNOON. WAVES SUBSIDING
TO 2 TO 4 FEET...THEN BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS.
WAVES 3 TO 5 FEET.
.MONDAY...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST. A CHANCE
OF SHOWERS. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-212200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1000 AM EDT FRI AUG 21 2015

.REST OF TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
BY MID AFTERNOON. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
3 TO 5 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON. A CHANCE OF THUNDERSTORMS. SHOWERS LIKELY BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES BUILDING TO
2 TO 4 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. A CHANCE OF SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$
LSZ261-212200-
MAFOR 2115/
SUPERIOR WEST 11410 11310 11320 14420 11420. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 12420 12330 13420 11410. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11420 11320 11330 11440 11430 12420 11410.
WAVES 1 TO 3 FEET.

SUPERIOR EAST 11510 11410 11320 12430 12420 11410. WAVES 1 TO 4
FEET.

$$

KLUBER



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