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NWS Forecast

FZUS63 KMQT 171333
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
933 AM EDT WED SEP 17 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

SYNOPSIS
A WEAK LOW PRESSURE TROUGH AVERAGING 30.0 INCHES WILL
MOVE SOUTH ACROSS THE UPPER GREAT LAKES TODAY. THE TROUGH WILL BE
FOLLOWED BY A 30.2 INCH HIGH PRESSURE WHICH WILL 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. ANOTHER AREA OF LOW PRESSURE AVERAGING 29.6 INCHES WILL
DEVELOP OVER THE NORTHERN PLAINS FRIDAY NIGHT. THIS LOW WILL DEEPEN
TO 29.4 INCHES AS IT SHIFTS OVER THE UPPER GREAT LAKES REGION LATE
SATURDAY INTO SATURDAY NIGHT AND THEN INTO QUEBEC ON SUNDAY.

LSZ162-172145-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
933 AM EDT WED SEP 17 2014 /833 AM CDT WED SEP 17 2014/

REST OF TODAY
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST
15 TO 25 KNOTS BY MID AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3 TO
6 FEET.

TONIGHT
EAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.

THURSDAY
EAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.

THURSDAY NIGHT
EAST WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.

FRIDAY
SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO 2 TO 4 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.

FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.

SATURDAY
WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING
TO 2 TO 4 FEET.

SUNDAY
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.



LSZ263-172145-
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-
933 AM EDT WED SEP 17 2014

REST OF TODAY
NORTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE
OF RAIN SHOWERS THROUGH EARLY AFTERNOON. WAVES 2 TO 4 FEET BUILDING
TO 3 TO 5 FEET.

TONIGHT
EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.

THURSDAY
EAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

THURSDAY NIGHT
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.

FRIDAY
SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY AFTERNOON...THEN
SHOWERS LIKELY BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET...
THEN BUILDING TO 2 TO 4 FEET.

FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 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 2 TO 4 FEET.

SUNDAY
WEST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 3 TO
5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.



LSZ264-172145-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
933 AM EDT WED SEP 17 2014

REST OF TODAY
NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS THROUGH EARLY AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 3 TO
5 FEET.

TONIGHT
NORTH WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO 20 KNOTS
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.

THURSDAY
EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.

THURSDAY NIGHT
SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.

FRIDAY
SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON...THEN SHOWERS BY MID AFTERNOON. WAVES 3 TO 6 FEET.

FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 1 TO 3 FEET.

SATURDAY
SOUTH WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 3 TO 5 FEET.

SUNDAY
WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. A CHANCE
OF RAIN SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.



LSZ265-172145-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
933 AM EDT WED SEP 17 2014

REST OF TODAY
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH
10 TO 20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 2 TO 4
FEET.

TONIGHT
NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.

THURSDAY
EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...THEN 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. A CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON...THEN SHOWERS LIKELY. WAVES BUILDING TO 3 TO 5
FEET.

FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.

SATURDAY
SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 3 TO 5 FEET.

SUNDAY
WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.



LSZ266-172145-
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-
933 AM EDT WED SEP 17 2014

REST OF TODAY
NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH
10 TO 20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES 2 TO 4 FEET.

TONIGHT
NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO
4 FEET.

THURSDAY
EAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 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 20 TO 30 KNOTS. A CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON...THEN SHOWERS LIKELY. WAVES BUILDING TO 4 TO 7
FEET.

FRIDAY NIGHT
SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 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 3 TO 6 FEET.

SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 2 TO
4 FEET.



LSZ267-172145-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
933 AM EDT WED SEP 17 2014

REST OF TODAY
SOUTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH BY
MID AFTERNOON. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET BUILDING
TO 1 TO 3 FEET.

TONIGHT
NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO
3 FEET.

THURSDAY
EAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

THURSDAY NIGHT
SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.

FRIDAY
SOUTH WINDS 20 TO 30 KNOTS. SHOWERS LIKELY BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.

FRIDAY NIGHT
SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY THROUGH MIDNIGHT...THEN A
CHANCE OF SHOWERS. A CHANCE OF THUNDERSTORMS. WAVES SUBSIDING TO 1
TO 3 FEET.

SATURDAY
SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS THROUGH EARLY AFTERNOON...THEN SHOWERS LIKELY. A CHANCE
OF THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 3 TO 5 FEET.

SUNDAY
NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.


LSZ261-172145-
MAFOR 1715/
SUPERIOR WEST 12130 11230 13220 12210. WAVES 1 TO 6 FEET.

SUPERIOR NORTH CENTRAL 11130 11120 12810 12110 12210. CHANCE OF RAIN
SHOWERS THROUGH MID AFTERNOON. WAVES 1 TO 6 FEET.

SUPERIOR SOUTH CENTRAL 11810 11120 12820 11120 11110 12210. SLIGHT
CHANCE OF RAIN SHOWERS THROUGH MID AFTERNOON. WAVES 1 TO 4 FEET.

SUPERIOR EAST 12120 12820 12120 11110 11210. CHANCE OF RAIN SHOWERS
THROUGH MID AFTERNOON. WAVES 1 TO 3 FEET.



KEC