Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 230748
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
348 AM EDT TUE AUG 23 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.3 INCH HIGH PRESSURE CENTERED OVER THE CENTRAL
APPALACHIANS WILL MOVE TO THE ATLANTIC SEABOARD BY THIS EVENING. A
29.6 INCH TROUGH OVER THE NORTHERN PLAINS WILL MOVE
EASTWARD...CROSSING THE UPPER GREAT LAKES WEDNESDAY AFTERNOON
THROUGH THURSDAY WHILE WEAKENING TO 29.9 INCHES. 30.2 INCH HIGH
PRESSURE WILL THEN SETTLE OVER THE GREAT LAKES FRIDAY THROUGH
SATURDAY.

LSZ162-231600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
348 AM EDT TUE AUG 23 2016 /248 AM CDT TUE AUG 23 2016/

.EARLY THIS MORNING...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES 2 TO
4 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...
THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1
TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.

$$

LSZ263-231600-
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 TUE AUG 23 2016

.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM TO
2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ264-231600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
348 AM EDT TUE AUG 23 2016

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES 3 TO
5 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.

$$

LSZ265-231600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
348 AM EDT TUE AUG 23 2016

.EARLY THIS MORNING...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.
.TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...
THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A
CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ266-231600-
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 TUE AUG 23 2016

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES 3 TO
6 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ267-231600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
348 AM EDT TUE AUG 23 2016

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES 3 TO
6 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO
CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-231600-
MAFOR 2309/
SUPERIOR WEST 11520 11510 11410 11400 14410. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 12520 11510 11410 11310 11410 12420. WAVES
3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET TODAY. WAVES 1 TO 3 FEET
TONIGHT.

SUPERIOR SOUTH CENTRAL 11520 11510 12410 12420 12410. WAVES 1 TO
3 FEET.

SUPERIOR EAST 11530 12520 12410 13420. WAVES 3 TO 6 FEET
SUBSIDING TO 2 TO 4 FEET TODAY. WAVES 2 TO 4 FEET TONIGHT.

$$

07



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