Great Lakes Forecast
Issued by NWS

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535
FZUS63 KMQT 130310
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1010 PM EST FRI FEB 12 2016

.SYNOPSIS...A 29.9 INCH TROUGH OVER EASTERN LAKE SUPERIOR WILL
LINGER THROUGH SATURDAY AS A 30.8 INCH HIGH PRESSURE BUILDS FROM
MANITOBA TO THE MID MISSISSIPPI VALLEY. EXPECT THIS HIGH TO MOVE EAST
INTO THE MID ATLANTIC STATES ON SUNDAY AND WEAKEN TO 30.6 INCHES
AHEAD OF A 29.7 INCH LOW PRESSURE TROUGH MOVING EAST ACROSS SOUTH
CENTRAL CANADA. THIS TROUGH WILL MOVE INTO THE WESTERN GREAT LAKES ON
MONDAY TO THE SOUTH OF A 29.5 INCH LOW PRESSURE DRIFTING ACROSS
CENTRAL CANADA TOWARD HUDSON BAY. LOOK FOR THIS LOW TO SHIFT INTO
QUEBEC ON TUESDAY AND DRAG ANOTHER 29.7 INCH LOW PRESSURE TROUGH INTO
THE UPPER GREAT LAKES. A 30.3 INCH HIGH PRESSURE OVER MANITOBA
TUESDAY AFTERNOON WILL MOVE OVER THE WESTERN GREAT LAKES BY WEDNESDAY
EVENING.

LSZ162-131115-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1010 PM EST FRI FEB 12 2016 /910 PM CST FRI FEB 12 2016/

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES 3 TO
6 FEET SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH. WAVES
BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ263-131115-
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-
1010 PM EST FRI FEB 12 2016

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST
SATURDAY...

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES 5 TO 8 FEET SUBSIDING TO
3 TO 6 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. WAVES
SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 1 TO 3 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ264-131115-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1010 PM EST FRI FEB 12 2016

...GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
MORNING...

.REST OF TONIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING
SPRAY. SNOW SHOWERS. WAVES 7 TO 10 FEET SUBSIDING TO 5 TO 8 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS. HEAVY FREEZING SPRAY
IN THE MORNING. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SNOW IN
THE MORNING. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. WAVES
BUILDING TO 3 TO 6 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. WAVES
SUBSIDING TO 2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-131115-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1010 PM EST FRI FEB 12 2016

...GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
AFTERNOON...

.REST OF TONIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS.
WAVES 6 TO 10 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING
SOUTHWEST 5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
HEAVY FREEZING SPRAY. WAVES BUILDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ266-131115-
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-
1010 PM EST FRI FEB 12 2016

...GALE WARNING IN EFFECT UNTIL 1 AM EST SATURDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
AFTERNOON...

.REST OF TONIGHT...NORTH GALES TO 40 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY.
SNOW SHOWERS. WAVES 9 TO 12 FEET SUBSIDING TO 7 TO 10 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. HEAVY FREEZING SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO
3 TO 5 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING
SOUTHWEST 5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES BUILDING TO 3 TO
6 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A
CHANCE OF SNOW. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO
3 TO 6 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH GALES TO
35 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
HEAVY FREEZING SPRAY. WAVES BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ267-131115-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1010 PM EST FRI FEB 12 2016

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
AFTERNOON...

.REST OF TONIGHT...NORTH WINDS 20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY
FREEZING SPRAY. SNOW SHOWERS. WAVES 7 TO 11 FEET...THEN SUBSIDING TO
6 TO 9 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS. HEAVY FREEZING SPRAY IN
THE MORNING. SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. WAVES BUILDING TO
3 TO 5 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. WAVES
SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS. FREEZING SPRAY. WAVES
BUILDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$
LSZ261-131115-
MAFOR 1304/
SUPERIOR WEST...HEAVY FREEZING SPRAY WARNING IN EFFECT...11740
11730 11720 11730 11720 12610 11510. SCATTERED SNOW SHOWERS
THROUGH MID MORNING SATURDAY. WAVES 1 TO 6 FEET.

SUPERIOR NORTH CENTRAL...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...11857 13747 11740 11730 11720 11710. HEAVY FREEZING SPRAY
THROUGH THE MORNING. CHANCE OF SNOW SHOWERS FROM LATE MORNING ON
SATURDAY. WAVES 5 TO 9 FEET OVERNIGHT. WAVES 4 TO 7 FEET SUBSIDING TO
1 TO 4 FEET SATURDAY AND SATURDAY EVENING.

SUPERIOR SOUTH CENTRAL...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...12757 13747 11732 11730 11720. HEAVY FREEZING SPRAY THROUGH
EARLY AFTERNOON. CHANCE OF SNOW SHOWERS LATE SATURDAY AND SATURDAY
EVENING. WAVES 8 TO 11 FEET OVERNIGHT. WAVES 7 TO 10 FEET SUBSIDING
TO 1 TO 5 FEET SATURDAY AND SATURDAY EVENING.

SUPERIOR EAST...GALE AND HEAVY FREEZING SPRAY WARNINGS IN EFFECT...
13847 14837 11827. HEAVY FREEZING SPRAY THROUGH EARLY AFTERNOON
SATURDAY. WAVES 7 TO 10 FEET OVERNIGHT. WAVES 5 TO 9 FEET SUBSIDING
TO 2 TO 6 FEET SATURDAY AND SATURDAY EVENING.

$$

PETRO



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