Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 190818
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
318 AM EST FRI DEC 19 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.4 INCH HIGH PRESSURE NEAR LAKE SUPERIOR THIS
MORNING WILL DRIFT SLOWLY EAST INTO THE CANADIAN MARITIMES BY LATE IN
THE WEEKEND. THEN A 29.4 INCH LOW PRESSURE TAKING SHAPE IN ALBERTA ON
SUNDAY WILL SLIDE SOUTHEAST THROUGH THE UPPER PLAINS AND INTO THE
WESTERN GREAT LAKES ON TUESDAY.

LSZ162-191630-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
318 AM EST FRI DEC 19 2014 /218 AM CST FRI DEC 19 2014/

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN THE
AFTERNOON. ISOLATED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. ISOLATED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SNOW. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.MONDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST. A CHANCE OF
SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. A CHANCE
OF SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ263-191630-
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-
318 AM EST FRI DEC 19 2014

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SNOW. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SNOW. WAVES 3 TO 5 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTH. A CHANCE OF
SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ264-191630-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
318 AM EST FRI DEC 19 2014

.EARLY THIS MORNING...NORTH WINDS LESS THAN 10 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...NORTHWEST WINDS LESS THAN 10 KNOTS BACKING SOUTH IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES BUILDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
3 TO 6 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS. SNOW LIKELY. WAVES SUBSIDING
TO 1 TO 3 FEET.

$$

LSZ265-191630-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
318 AM EST FRI DEC 19 2014

.EARLY THIS MORNING...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS THAN
10 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
3 TO 5 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. SNOW LIKELY. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ266-191630-
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-
318 AM EST FRI DEC 19 2014

.EARLY THIS MORNING...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TODAY...NORTH WINDS LESS THAN 10 KNOTS VEERING EAST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW. WAVES 3 TO 6 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. SNOW LIKELY. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ267-191630-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
318 AM EST FRI DEC 19 2014

.EARLY THIS MORNING...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
3 TO 5 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. SNOW LIKELY...POSSIBLY MIXED WITH RAIN. WAVES SUBSIDING TO
CALM TO 2 FEET.

$$

LSZ261-191630-
MAFOR 1910/
SUPERIOR WEST 11410 12510 13410 12510. WAVES 1 TO 2 FEET.

SUPERIOR NORTH CENTRAL 12700 11300 12400 13410. WAVES 2 FEET OR LESS.

SUPERIOR SOUTH CENTRAL 13700 11500 12400 12500. WAVES 1 FOOT OR LESS.

SUPERIOR EAST 14100 11200 11300 12400. WAVES 2 FEET OR LESS.

$$

SRF






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