Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 230152
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
952 PM EDT THU SEP 22 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A LOW PRESSURE TROUGH AVERAGING 30.0 INCHES OVER THE
LOWER GREAT LAKES AND EXTENDING INTO THE SAINT LAWRENCE VALLEY WILL
CONTINUE TO DRIFT SLOWLY EAST AND EXIT INTO THE NORTHEAST ON FRIDAY.
A 30.3 INCH HIGH PRESSURE OVER MANITOBA EXPANDS INTO NORTHWEST
ONTARIO. EXPECT THIS HIGH PRESSURE CENTER TO DRIFT SLOWLY TO THE
EAST THIS WEEKEND...REACHING FAR WESTERN QUEBEC BY LATE SUNDAY TO
THE EAST OF A 29.7 INCH LOW IN THE NORTHERN PLAINS. THIS LOW WILL
SHIFT INTO NORTHERN MINNESOTA ON MONDAY AND WEAKEN TO 29.8 INCHES
WHILE THE HIGH IN QUEBEC EDGES ONLY SLOWLY TO THE EAST. THE LOW WILL
MOVE INTO WESTERN LAKE SUPERIOR ON TUESDAY AT 29.9 INCHES.

LSZ162-231000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
952 PM EDT THU SEP 22 2016 /852 PM CDT THU SEP 22 2016/

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.FRIDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS. WAVES
1 TO 3 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
5 TO 15 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH BY MID
AFTERNOON. SHOWERS LIKELY. WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SHOWERS. WAVES 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. WAVES CALM TO
2 FEET.

$$

LSZ263-231000-
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-
952 PM EDT THU SEP 22 2016

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.FRIDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. SHOWERS LIKELY. WAVES
BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. SHOWERS LIKELY THROUGH MIDNIGHT...THEN A CHANCE
OF SHOWERS AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. A CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ264-231000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
952 PM EDT THU SEP 22 2016

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

$$

LSZ265-231000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
952 PM EDT THU SEP 22 2016

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS.
WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH
AFTER MIDNIGHT. SHOWERS LIKELY. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ266-231000-
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-
952 PM EDT THU SEP 22 2016

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS.
WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS. SHOWERS LIKELY.
WAVES 3 TO 6 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ267-231000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
952 PM EDT THU SEP 22 2016

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS BY
MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF
SHOWERS THROUGH MIDNIGHT...THEN SHOWERS LIKELY AFTER MIDNIGHT.
WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTHWEST.
SHOWERS LIKELY...THEN A CHANCE OF SHOWERS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS. WAVES
CALM TO 2 FEET.

$$
LSZ261-231000-
MAFOR 2303/
SUPERIOR WEST 14120 11120 11220 11120 11220. WAVES 2 TO 5 FEET.

SUPERIOR NORTH CENTRAL 12120 14220 12210. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 12110 14210 12220. WAVES 2 TO 3 FEET.

SUPERIOR EAST 11110 14210 11210 12110. WAVES 1 TO 3 FEET.

$$

JS



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