Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 250237
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
937 PM EST MON NOV 24 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...28.8 INCH LOW PRESSURE OVER NORTHERN QUEBEC WILL
TRACK NORTHEASTWARD TONIGHT WITH A 29.2 INCH TROUGH EXTENDING
OVER NORTHERN LAKE HURON. A 30.2 INCH HIGH PRESSURE RIDGE WILL MOVE
INTO THE UPPER GREAT LAKES TUESDAY MORNING. A 30.1 INCH HIGH
PRESSURE RIDGE WILL MOVE SOUTHEASTWARD FROM CENTRAL CANADA...CROSSING
THE UPPER GREAT LAKES TUESDAY NIGHT INTO WEDNESDAY. BROAD HIGH
PRESSURE OF 30.5 INCHES WILL THEN BUILD SOUTHEASTWARD ACROSS THE
UPPER MISSISSIPPI VALLEY ON THURSDAY AS A 30.1 INCH TROUGH SETTLES
OVER THE LOWER GREAT LAKES. THE RIDGE WILL CROSS THE UPPER GREAT
LAKES AT 30.2 INCHES FRIDAY BEFORE 29.5 INCH LOW PRESSURE TRACKS
EASTWARD FROM THE NORTHERN PLAINS TO THE UPPER GREAT LAKES ON
SATURDAY.

LSZ162-251045-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
937 PM EST MON NOV 24 2014 /837 PM CST MON NOV 24 2014/

.REST OF TONIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 5 TO
9 FEET SUBSIDING TO 4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
3 TO 6 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 2 TO 4 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ263-251045-
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-
937 PM EST MON NOV 24 2014

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

.REST OF TONIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW LATE IN THE EVENING...THEN A CHANCE
OF SNOW AFTER MIDNIGHT. WAVES 8 TO 11 FEET SUBSIDING TO 5 TO
8 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE
MORNING...THEN SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES BUILDING TO 3 TO 6 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 2 TO 4 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. A CHANCE OF SNOW. FREEZING SPRAY. WAVES BUILDING TO
4 TO 7 FEET.

$$

LSZ264-251045-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
937 PM EST MON NOV 24 2014

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

.REST OF TONIGHT...NORTH GALES TO 40 KNOTS DECREASING TO WINDS TO 30
KNOTS AFTER MIDNIGHT. SNOW. WAVES 10 TO 14 FEET SUBSIDING TO 6 TO 9
FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY.
SNOW SHOWERS LIKELY. WAVES BUILDING TO 5 TO 8 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. FREEZING SPRAY IN THE MORNING. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. A CHANCE OF SNOW. FREEZING SPRAY. WAVES BUILDING TO
5 TO 8 FEET.

$$

LSZ265-251045-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
937 PM EST MON NOV 24 2014

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.REST OF TONIGHT...NORTH GALES TO 35 KNOTS DECREASING TO WINDS TO 30
KNOTS AFTER MIDNIGHT. SNOW. WAVES 10 TO 14 FEET SUBSIDING TO 8 TO 11
FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST IN THE
AFTERNOON. SNOW SHOWERS IN THE MORNING...THEN A CHANCE OF SNOW
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 5 TO 8 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 2 TO 4 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 4 TO 7 FEET.

$$

LSZ266-251045-
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-
937 PM EST MON NOV 24 2014

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.REST OF TONIGHT...NORTH GALES TO 40 KNOTS DECREASING TO WINDS TO 30
KNOTS AFTER MIDNIGHT. SNOW. WAVES 10 TO 14 FEET SUBSIDING TO 8 TO 11
FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW SHOWERS IN THE MORNING...THEN A
CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO
5 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 5 TO 8 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY IN
THE MORNING. A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES
SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 3 TO 5 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. A
CHANCE OF SNOW. FREEZING SPRAY. WAVES BUILDING TO 5 TO 8 FEET.

$$

LSZ267-251045-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
937 PM EST MON NOV 24 2014

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.REST OF TONIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW. WAVES 8 TO 11 FEET SUBSIDING TO
6 TO 9 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH
AFTER MIDNIGHT. SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS. FREEZING SPRAY. A CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING
TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 5 TO 8 FEET.

$$
LSZ261-251045-
MAFOR 2504/
SUPERIOR WEST...GALE WARNING IN EFFECT...
11840 19850 11740 11730 11720 11610 13620. CHANCE OF SNOW OVERNIGHT.
SLIGHT CHANCE OF SNOW SHOWERS TUESDAY AFTERNOON AND EVENING. WAVES 5
TO 8 FEET OVERNIGHT. WAVES 5 TO 7 FEET SUBSIDING TO 1 TO 3 FEET
TUESDAY.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...
11857 11847 11840 11830 11720 13620. CHANCE OF SNOW TUESDAY AND
TUESDAY EVENING. WAVES 10 TO 13 FEET OVERNIGHT. WAVES 6 TO 9 FEET
SUBSIDING TO 2 TO 4 FEET TUESDAY.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...
11857 12847 11747 11737 11720 12620. SLIGHT CHANCE OF SNOW SHOWERS
TUESDAY EVENING. WAVES 10 TO 13 FEET OVERNIGHT. WAVES 8 TO 11 FEET
SUBSIDING TO 4 TO 6 FEET TUESDAY. WAVES 2 TO 4 FEET TUESDAY EVENING.

SUPERIOR EAST...GALE WARNING IN EFFECT...
11857 12847 11837 12727 12620. CHANCE OF SNOW SHOWERS TUESDAY
EVENING. WAVES 8 TO 11 FEET OVERNIGHT. WAVES 6 TO 9 FEET SUBSIDING TO
4 TO 6 FEET TUESDAY. WAVES 2 TO 6 FEET TUESDAY EVENING.

$$

PETRO





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