Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 152056
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
356 PM EST SUN JAN 15 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...HIGH PRESSURE OF 30.4 INCHES OVER THE SOUTHERN GREAT
LAKES WILL QUICKLY SHIFT TO THE MID ATLANTIC STATES BY MONDAY
MORNING WITH A 30.3 INCH RIDGE EXTENDING BACK TO THE UPPER
MISSISSIPPI VALLEY. MEANWHILE...A 29.7 INCH LOW PRESSURE WILL TRACK
SOUTHEAST TO JAMES BAY BY MONDAY MORNING. AS THE LOW MOVES ACROSS
QUEBEC ON MONDAY...THE RIDGE WILL DRIFT NORTH TO THE UPPER GREAT
LAKES. A LOW PRESSURE OF 29.8 INCHES LIFTING INTO THE SOUTHERN
PLAINS MONDAY WILL THEN TRACK NORTHEAST...PASSING ACROSS LOWER
MICHIGAN ON TUESDAY BEFORE DISSIPATING AS IT MOVES INTO SOUTHEAST
CANADA WEDNESDAY. LATER WEDNESDAY INTO THURSDAY...BROAD HIGH
PRESSURE OF 30.1 INCHES WILL SET UP OVER THE EASTERN STATES THROUGH
FRIDAY  WHILE BROAD LOW PRESSURE OF 29.1 INCHES MOVES INTO SOUTHWEST
CANADA.

LSZ162-160500-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
356 PM EST SUN JAN 15 2017 /256 PM CST SUN JAN 15 2017/

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS. WAVES 5 TO
9 FEET.
.TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25
KNOTS. WAVES SUBSIDING TO 3 TO 6 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING WEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ263-160500-
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-
356 PM EST SUN JAN 15 2017

...GALE WARNING IN EFFECT UNTIL 2 AM EST MONDAY...

.LATE THIS AFTERNOON...SOUTHWEST GALES TO 35 KNOTS. WAVES 6 TO
9 FEET BUILDING TO 7 TO 10 FEET.
.TONIGHT...SOUTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
AND VEERING WEST AFTER MIDNIGHT. WAVES SUBSIDING TO 5 TO 8 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING WEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ264-160500-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
356 PM EST SUN JAN 15 2017

...GALE WARNING IN EFFECT UNTIL 2 AM EST MONDAY...

.LATE THIS AFTERNOON...SOUTHWEST GALES TO 35 KNOTS. WAVES 6 TO
9 FEET BUILDING TO 7 TO 10 FEET.
.TONIGHT...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. WAVES BUILDING TO 8 TO 11 FEET...THEN SUBSIDING
TO 6 TO 9 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ265-160500-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
356 PM EST SUN JAN 15 2017

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS. WAVES 2 TO
4 FEET BUILDING TO 3 TO 5 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
6 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TUESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ266-160500-
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-
356 PM EST SUN JAN 15 2017

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS. WAVES 6 TO
9 FEET.
.TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 8 TO 11 FEET...THEN
SUBSIDING TO 6 TO 9 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST. WAVES
CALM TO 2 FEET.

$$

LSZ267-160500-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
356 PM EST SUN JAN 15 2017

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS. WAVES 3 TO
5 FEET.
.TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-160500-
MAFOR 1522/
SUPERIOR WEST...GALE WARNING IN EFFECT...12550 12540 12530 11620
11510. WAVES 5 TO 8 FEET TONIGHT. WAVES 3 TO 6 FEET SUBSIDING TO
2 TO 4 FEET MONDAY.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11550 12650
12640 11630 11620 11610. WAVES 6 TO 9 FEET BUILDING TO 8 TO 11
FEET TONIGHT. WAVES 6 TO 9 FEET SUBSIDING TO 2 TO 4 FEET MONDAY.

SUPERIOR SOUTH CENTRAL 11540 14640 11630 11620 11610. WAVES 2 TO
6 FEET.

SUPERIOR EAST 13540 12630 11620 12610. WAVES 3 TO 6 FEET BUILDING
TO 5 TO 8 FEET TONIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 5
FEET MONDAY.

$$

PETRO



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