Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 160752
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
352 AM EDT TUE SEP 16 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.2 INCH HIGH PRESSURE CENTERED OVER THE CENTRAL PLAINS
WILL DRIFT INTO THE LOWER MIDWEST AND OHIO VALLEY LATE TONIGHT AND
WEDNESDAY. THIS WILL ALLOW A LOW PRESSURE TROUGH AVERAGING 30.0
INCHES TO CROSS THE UPPER GREAT LAKES TONIGHT AND EARLY WEDNESDAY.
30.3 INCH HIGH PRESSURE WILL THEN BUILD SOUTHEASTWARD FROM CENTRAL
CANADA AND BECOME CENTERED JUST NORTHEAST OF LAKE SUPERIOR BY
THURSDAY MORNING. THE HIGH WILL MOVE TO NEW ENGLAND ON FRIDAY BEFORE
A 29.5 INCH TROUGH TRACKS INTO NORTHWEST ONTARIO LATE FRIDAY AND
WEAKENS TO 29.6 INCHES OVER THE UPPER GREAT LAKES ON SATURDAY.

LSZ162-161600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
352 AM EDT TUE SEP 16 2014 /252 AM CDT TUE SEP 16 2014/

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

$$

LSZ263-161600-
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-
352 AM EDT TUE SEP 16 2014

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

$$

LSZ264-161600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
352 AM EDT TUE SEP 16 2014

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

$$

LSZ265-161600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
352 AM EDT TUE SEP 16 2014

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

$$

LSZ266-161600-
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-
352 AM EDT TUE SEP 16 2014

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

$$

LSZ267-161600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
352 AM EDT TUE SEP 16 2014

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

$$

LSZ261-161600-
MAFOR 1609/
SUPERIOR WEST 11620 13530 12620 11810 11120.  WAVES 2 TO 4 FEET
BUILDING TO 3 TO 6 FEET TODAY. WAVES 2 TO 5 FEET SUBSIDING TO 1 TO 3
FEET TONIGHT.

SUPERIOR NORTH CENTRAL 11520 12530 11630 11620 11810 11120 11220.
SLIGHT CHANCE OF RAIN SHOWERS OVERNIGHT. WAVES 2 TO 4 FEET BUILDING
TO 3 TO 6 FEET TODAY. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET
TONIGHT.

SUPERIOR SOUTH CENTRAL 14620 11720 11800 12110. SLIGHT CHANCE OF
RAIN SHOWERS OVERNIGHT. WAVES 2 TO 4 FEET TODAY. WAVES 1 TO 2 FEET
TONIGHT.

SUPERIOR EAST 12620 11520 11620 12710 11810 11120. SLIGHT CHANCE OF
RAIN SHOWERS OVERNIGHT. WAVES 2 TO 4 FEET TODAY. WAVES 1 TO 3 FEET
TONIGHT.

$$

VOSS





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