Great Lakes Forecast
Issued by NWS

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532
FZUS63 KMQT 221358
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
958 AM EDT MON AUG 22 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.0 INCH RIDGE OVER THE UPPER GREAT LAKES WILL DRIFT
ACROSS THE LOWER GREAT LAKES THIS AFTERNOON AND TONIGHT. A 29.6 INCH
TROUGH OVER THE NORTHERN PLAINS TUESDAY MORNING WILL MOVE
EASTWARD...CROSSING THE UPPER GREAT LAKES WEDNESDAY AFTERNOON
THROUGH THURSDAY MORNING. 30.0 INCH HIGH PRESSURE WILL THEN SETTLE
OVER THE WESTERN GREAT LAKES REGION FOR FRIDAY.

LSZ162-222200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
958 AM EDT MON AUG 22 2016 /858 AM CDT MON AUG 22 2016/

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

$$

LSZ263-222200-
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-
958 AM EDT MON AUG 22 2016

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

$$

LSZ264-222200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
958 AM EDT MON AUG 22 2016

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY
MID AFTERNOON. SCATTERED SHOWERS BY LATE MORNING. WAVES 1 TO
3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. ISOLATED SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...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 VEERING SOUTHWEST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING
TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.

$$

LSZ265-222200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
958 AM EDT MON AUG 22 2016

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

$$

LSZ266-222200-
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-
958 AM EDT MON AUG 22 2016

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

$$

LSZ267-222200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
958 AM EDT MON AUG 22 2016

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY
MID AFTERNOON. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. ISOLATED SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO
3 TO 6 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST
AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.

$$
LSZ261-222200-
MAFOR 2215/
SUPERIOR WEST 11520 13420 11430 12530 11520. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11520 11420 11410 11420 11430 11530 12520.
SCATTERED SHOWERS LATE THIS MORNING. WAVES 2 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 11510 13420 11430 11530 12520. WAVES 1 TO
4 FEET.

SUPERIOR EAST 11510 12420 12430 12530 11520. WAVES 2 TO 6 FEET.

$$

PETRO



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