Great Lakes Forecast
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000
FZUS63 KMQT 100307
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1007 PM EST FRI DEC 9 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK 30.3 INCH LOW PRESSURE TROUGH WILL REMAIN OVER
EASTERN UPPER MICHIGAN THROUGH SATURDAY EVENING. A 30.5 INCH HIGH
PRESSURE RIDGE WILL THEN CROSS THE UPPER GREAT LAKES THROUGH SUNDAY
WHILE WEAKENING TO 30.3 INCHES. A TROUGH OF LOW PRESSURE AVERAGING
29.8 INCHES WILL MOVE FROM THE CENTRAL PLAINS LATE SUNDAY INTO THE
SOUTHERN GREAT LAKES SUNDAY NIGHT AS IT DEEPENS TO 29.7 INCHES. A
TROUGH OF 29.9 INCHES ASSOCIATED WITH AN ARCTIC COLD FRONT WILL MOVE
THROUGH THE NORTHERN GREAT LAKES TUESDAY MORNING AND REACH QUEBEC
TUESDAY NIGHT. A 30.4 INCH HIGH PRESSURE OVER NORTHERN ILLINOIS
TUESDAY NIGHT WILL DISSIPATE OVER THE OHIO VALLEY WEDNESDAY
EVENING...AS A 30.5 INCH HIGH BUILDS OVER THE NORTHERN PLAINS.

LSZ162-101115-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1007 PM EST FRI DEC 9 2016 /907 PM CST FRI DEC 9 2016/

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS. WAVES 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. SNOW LIKELY. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN A
CHANCE OF SNOW AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO
1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
HEAVY FREEZING SPRAY. WAVES BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
HEAVY FREEZING SPRAY. WAVES SUBSIDING TO 3 TO 5 FEET...THEN
BUILDING TO 4 TO 7 FEET.

$$

LSZ263-101115-
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-
1007 PM EST FRI DEC 9 2016

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES BUILDING
TO 2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST IN THE
AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN SNOW LIKELY IN
THE AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. SNOW LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW AFTER MIDNIGHT. WAVES 1 TO
3 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE
EVENING...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES BUILDING
TO 3 TO 5 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS. SNOW SHOWERS LIKELY. WAVES BUILDING TO 4 TO 8 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS. HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES
BUILDING TO 6 TO 9 FEET.

$$

LSZ264-101115-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1007 PM EST FRI DEC 9 2016

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

$$

LSZ265-101115-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1007 PM EST FRI DEC 9 2016

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. NUMEROUS SNOW
SHOWERS LATE IN THE EVENING...THEN SCATTERED SNOW SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN
SNOW LIKELY IN THE AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SNOW LIKELY. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 2 TO 4 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS. SNOW SHOWERS LIKELY. FREEZING SPRAY. WAVES BUILDING TO
3 TO 6 FEET.
.WEDNESDAY...WEST GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 4 TO 7 FEET.

$$

LSZ266-101115-
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-
1007 PM EST FRI DEC 9 2016

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS.
WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS. WAVES
3 TO 6 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN
SNOW LIKELY IN THE AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE
EVENING...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES BUILDING
TO 3 TO 5 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS. FREEZING SPRAY. SNOW SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST. HEAVY
FREEZING SPRAY. SNOW SHOWERS. WAVES BUILDING TO 7 TO 11 FEET.

$$

LSZ267-101115-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1007 PM EST FRI DEC 9 2016

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KNOTS. SNOW SHOWERS.
WAVES 1 TO 3 FEET.
.SATURDAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE EVENING...THEN A
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST IN THE
AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN SNOW LIKELY IN
THE AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 2 TO 4 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS. FREEZING SPRAY. SNOW SHOWERS. WAVES BUILDING TO 6 TO
10 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST. FREEZING
SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO 6 TO 9 FEET...THEN
BUILDING TO 8 TO 11 FEET.

$$
LSZ261-101115-
MAFOR 1004/
SUPERIOR WEST 12720 12730 11720 11710 12700. SCATTERED SNOW
SHOWERS OVERNIGHT THROUGH SATURDAY EVENING. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 12720 13730 11720 11710 11700. SCATTERED
SNOW SHOWERS OVERNIGHT THROUGH LATE SATURDAY EVENING. WAVES 1 TO 4
FEET.

SUPERIOR SOUTH CENTRAL 12727 12737 12730 11710 11700. SCATTERED
SNOW SHOWERS FROM LATE SATURDAY MORNING THROUGH SATURDAY EVENING.
WAVES 1 TO 5 FEET.

SUPERIOR EAST 11827 11817 14827 11817 11707. WAVES 2 TO 4 FEET.

$$

JS


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