Great Lakes Forecast
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000
FZUS63 KMQT 160239
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
939 PM EST MON DEC 15 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.8 INCH LOW PRESSURE SYSTEM OVER CENTRAL LAKE
SUPERIOR WILL MOVE TOWARD JAMES BAY AND WEAKEN TO 30.0 INCHES
OVERNIGHT. AT THE SAME TIME...A 29.6 INCH LOW PRESSURE SYSTEM
CENTERED OVER EASTERN IOWA WILL MOVE NORTHEAST...CROSSING LOWER
MICHIGAN TUESDAY AND PUSHING INTO SOUTHERN QUEBEC ON WEDNESDAY.
A LOW PRESSURE TROUGH AVERAGING 30.2 INCHES EXTENDING WEST FROM
THIS LOW WILL REMAIN OVER LAKE SUPERIOR THROUGH WEDNESDAY WHILE A
BROAD 30.4 INCH HIGH PRESSURE RIDGE SLIDES ACROSS THE PLAINS STATES.
EXPECT THIS HIGH TO DRIFT SLOWLY EASTWARD INTO THE GREAT LAKES
THURSDAY THROUGH SATURDAY AS IT WEAKENS TO 30.2 INCHES.

LSZ162-161045-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
939 PM EST MON DEC 15 2014 /839 PM CST MON DEC 15 2014/

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS. RAIN LATE IN THE
EVENING. SNOW. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS. FREEZING SPRAY IN THE
MORNING. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...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.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-161045-
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-
939 PM EST MON DEC 15 2014

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. RAIN AND SNOW. WAVES 2 TO 4 FEET
BUILDING TO 5 TO 8 FEET.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW LIKELY. WAVES
BUILDING TO 6 TO 9 FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS LIKELY.
WAVES SUBSIDING TO 5 TO 8 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
BUILDING TO 1 TO 3 FEET.

$$

LSZ264-161045-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
939 PM EST MON DEC 15 2014

.REST OF TONIGHT...NORTH WINDS 20 TO 30 KNOTS WITH A FEW GALE FORCE
GUSTS TO 35 KNOTS AFTER MIDNIGHT. RAIN AND SNOW. WAVES 2 TO 4 FEET
BUILDING TO 6 TO 9 FEET.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS. FREEZING SPRAY. SNOW. WAVES BUILDING TO 6 TO 10 FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES SUBSIDING TO 5 TO 8 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS IN THE MORNING. A CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
BUILDING TO 2 TO 4 FEET.

$$

LSZ265-161045-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
939 PM EST MON DEC 15 2014

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
15 TO 25 KNOTS AFTER MIDNIGHT. PATCHY FOG. RAIN. SNOW AFTER
MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 6 TO 9 FEET.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS. SNOW. WAVES BUILDING TO
6 TO 10 FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 5 TO
8 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS. WAVES 5 TO
8 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
BUILDING TO 1 TO 3 FEET.

$$

LSZ266-161045-
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-
939 PM EST MON DEC 15 2014

.REST OF TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS AFTER MIDNIGHT. PATCHY FOG LATE IN THE EVENING. RAIN.
SNOW AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 6 TO 9 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. RAIN IN THE MORNING. SNOW. WAVES
BUILDING TO 6 TO 10 FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. SNOW SHOWERS. WAVES
SUBSIDING TO 5 TO 8 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES 5 TO 8 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. FREEZING SPRAY IN
THE EVENING. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
6 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
BUILDING TO 2 TO 4 FEET.

$$

LSZ267-161045-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
939 PM EST MON DEC 15 2014

.REST OF TONIGHT...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. PATCHY FOG. RAIN. WAVES 1 TO 3 FEET
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS. PATCHY FOG IN THE MORNING.
RAIN AND SNOW. WAVES BUILDING TO 5 TO 8 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
6 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST. WAVES
BUILDING TO 1 TO 3 FEET.

$$
LSZ261-161045-
MAFOR 1604/
SUPERIOR WEST 12847 11840 12841 13830. FREEZING SPRAY IN THE MORNING
AND TUESDAY EVENING. CHANCE OF SNOW TUESDAY AND TUESDAY EVENING.
WAVES 2 TO 4 FEET BUILDING TO 5 TO 7 FEET OVERNIGHT. WAVES 5 TO 7
FEET TUESDAY AND TUESDAY EVENING.

SUPERIOR NORTH CENTRAL 11846 15847 11847. FREEZING SPRAY TUESDAY AND
TUESDAY EVENING. WAVES 3 TO 5 FEET BUILDING TO 5 TO 8 FEET OVERNIGHT.
WAVES 7 TO 10 FEET TUESDAY AND TUESDAY EVENING.

SUPERIOR SOUTH CENTRAL 12836 15847. PATCHY FOG LATE THIS EVENING.
WAVES 1 TO 2 FEET BUILDING TO 5 TO 7 FEET OVERNIGHT. WAVES 7 TO 10
FEET TUESDAY AND TUESDAY EVENING.

SUPERIOR EAST 11516 11616 11726 11827 11837 13137. PATCHY FOG THROUGH
MORNING. WAVES 1 TO 3 FEET OVERNIGHT. WAVES 4 TO 6 FEET BUILDING TO 5
TO 8 FEET TUESDAY AND TUESDAY EVENING.

$$

JS




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