Great Lakes Forecast
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FZUS63 KMQT 100855
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
355 AM EST TUE JAN 10 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.4 INCH LOW OVER THE CENTRAL PLAINS THIS MORNING
WILL DEEPEN TO 29.1 INCHES OVER EASTERN UPPER MICHIGAN THIS EVENING
AND REACH JAMES BAY WEDNESDAY MORNING...LEAVING A 29.8 INCH TROUGH
OVER THE UPPER GREAT LAKES THROUGH WEDNESDAY AFTERNOON. A 29.5 INCH
LOW OVER CENTRAL SASKATCHEWAN WEDNESDAY EVENING WILL HEAD EAST TO
JUST EAST OF NORTHEAST LAKE SUPERIOR BY THURSDAY EVENING AND WEAKEN
TO 29.9 INCHES. 30.7 INCH HIGH PRESSURE OVER THE NORTHERN PLAINS
THURSDAY EVENING WILL BUILD TO 30.9 INCHES AS IT MOVES OUT THE UPPER
GREAT LAKES ON FRIDAY. THE HIGH WILL SLOWLY SINK SOUTH AND WEAKEN TO
30.5 INCHES OVER THE LOWER GREAT LAKES ON SATURDAY.

LSZ162-101700-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
355 AM EST TUE JAN 10 2017 /255 AM CST TUE JAN 10 2017/

...GALE WARNING IN EFFECT FROM THIS AFTERNOON THROUGH WEDNESDAY
MORNING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING
THROUGH WEDNESDAY AFTERNOON...

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF
SNOW. WAVES 1 TO 3 FEET.
.TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.TONIGHT...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF SNOW. WAVES
BUILDING TO 6 TO 9 FEET...THEN SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS IN
THE EVENING. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE AFTERNOON.
WAVES BUILDING TO 5 TO 8 FEET.
.THURSDAY NIGHT...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE
EVENING. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
2 TO 4 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ263-101700-
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-
355 AM EST TUE JAN 10 2017

...GALE WARNING IN EFFECT FROM THIS AFTERNOON THROUGH WEDNESDAY
MORNING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING
THROUGH WEDNESDAY AFTERNOON...

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW AND PATCHY FREEZING DRIZZLE. WAVES 2 TO 4 FEET.
.TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW. WAVES BUILDING TO 3 TO 6 FEET.
.TONIGHT...WEST GALES TO 35 KNOTS. HEAVY FREEZING SPRAY. A CHANCE
OF SNOW. WAVES BUILDING TO 10 TO 14 FEET...THEN SUBSIDING TO 8 TO
11 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW
SHOWERS LIKELY IN THE MORNING...THEN A CHANCE OF SNOW SHOWERS IN
THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST GALES TO
35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. HEAVY
FREEZING SPRAY IN THE AFTERNOON. WAVES BUILDING TO 7 TO 10 FEET.
.THURSDAY NIGHT...WEST GALES TO 35 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ264-101700-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
355 AM EST TUE JAN 10 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
MORNING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM LATE TONIGHT
THROUGH WEDNESDAY EVENING...

.EARLY THIS MORNING...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW AND A SLIGHT CHANCE OF FREEZING DRIZZLE. WAVES 3 TO 6 FEET
BUILDING TO 4 TO 7 FEET.
.TODAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW. WAVES BUILDING TO 6 TO 9 FEET...
THEN SUBSIDING TO 4 TO 7 FEET.
.TONIGHT...WEST GALES TO 40 KNOTS. FREEZING SPRAY. SNOW LIKELY IN
THE EVENING. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES SUBSIDING TO
3 TO 6 FEET...THEN BUILDING TO 10 TO 14 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY IN THE
MORNING. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST GALES TO
35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. FREEZING
SPRAY IN THE AFTERNOON. WAVES BUILDING TO 7 TO 10 FEET.
.THURSDAY NIGHT...WEST GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 8 TO 11 FEET...THEN SUBSIDING TO 3 TO
6 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-101700-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
355 AM EST TUE JAN 10 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
MORNING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM LATE TONIGHT
THROUGH WEDNESDAY EVENING...

.EARLY THIS MORNING...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW AND A SLIGHT CHANCE OF FREEZING DRIZZLE. WAVES 3 TO 5 FEET.
.TODAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW. WAVES BUILDING TO 4 TO 7 FEET...
THEN SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...WEST GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. SNOW IN
THE EVENING. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES SUBSIDING TO
3 TO 5 FEET...THEN BUILDING TO 10 TO 14 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY IN THE
MORNING. A CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SNOW
SHOWERS LIKELY IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...WEST GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO
5 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-101700-
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-
355 AM EST TUE JAN 10 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
MORNING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM LATE TONIGHT
THROUGH WEDNESDAY EVENING...

.EARLY THIS MORNING...SOUTH WINDS 20 TO 30 KNOTS. SNOW LIKELY AND
A SLIGHT CHANCE OF FREEZING DRIZZLE. WAVES 4 TO 8 FEET.
.TODAY...SOUTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW. WAVES BUILDING TO 6 TO 9 FEET...
THEN SUBSIDING TO 4 TO 7 FEET.
.TONIGHT...WEST GALES TO 40 KNOTS. SNOW IN THE EVENING...THEN A
CHANCE OF SNOW AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT.
WAVES SUBSIDING TO 3 TO 6 FEET...THEN BUILDING TO 15 TO 20 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A CHANCE
OF SNOW SHOWERS IN THE MORNING. SNOW SHOWERS LIKELY IN THE
AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 6 TO 9 FEET.
.THURSDAY NIGHT...WEST GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES BUILDING TO 9 TO 12 FEET...THEN SUBSIDING TO 6 TO
9 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-101700-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
355 AM EST TUE JAN 10 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
MORNING...

.EARLY THIS MORNING...SOUTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW AND A SLIGHT CHANCE OF FREEZING DRIZZLE. WAVES 4 TO 7 FEET.
.TODAY...SOUTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW. WAVES SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...WEST GALES TO 40 KNOTS. RAIN IN THE EVENING. SNOW.
FREEZING SPRAY AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO 5 FEET...
THEN BUILDING TO 15 TO 20 FEET.
.WEDNESDAY...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST IN THE
AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS IN THE
MORNING. SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES SUBSIDING TO
3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...WEST GALES TO 35 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS IN THE
EVENING. SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES BUILDING TO
10 TO 14 FEET...THEN SUBSIDING TO 6 TO 9 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ261-101700-
MAFOR 1010/
SUPERIOR WEST...GALE WARNING AND HEAVY FREEZING SPRAY WARNING IN
EFFECT...11420 11317 11407 11627 11750 11650 12652. A CHANCE OF SNOW
THROUGH MID MORNING. FREEZING SPRAY IN THE EVENING...THEN HEAVY
FREEZING SPRAY OVERNIGHT. A CHANCE OF SNOW TONIGHT. WAVES 1 TO 3
FEET TODAY. WAVES 5 TO 8 FEET BUILDING TO 7 TO 11 FEET TONIGHT.

SUPERIOR NORTH CENTRAL...GALE WARNING AND HEAVY FREEZING SPRAY
WARNING IN EFFECT...11430 11437 12337 11527 11767 12660. A CHANCE OF
SNOW THIS MORNING. FREEZING SPRAY FROM LATE EVENING ON. A CHANCE OF
SNOW OVERNIGHT. WAVES 3 TO 6 FEET BUILDING TO 6 TO 9 FEET TODAY.
WAVES 4 TO 7 FEET BUILDING TO 10 TO 14 FEET TONIGHT.

SUPERIOR SOUTH CENTRAL...GALE WARNING AND HEAVY FREEZING SPRAY
WARNING IN EFFECT...11430 13337 11527 11667 11661 11662. A CHANCE OF
SNOW THIS MORNING. FREEZING SPRAY. HEAVY FREEZING SPRAY LATE. A CHANCE
OF SNOW OVERNIGHT. WAVES 3 TO 6 FEET TODAY. WAVES 3 TO 5 FEET
BUILDING TO 10 TO 15 FEET TONIGHT.

SUPERIOR EAST...GALE WARNING AND HEAVY FREEZING SPRAY WARNING IN
EFFECT...14347 11347 11557 12667. FREEZING SPRAY OVERNIGHT. WAVES 5
TO 8 FEET TODAY. WAVES 4 TO 6 FEET BUILDING TO 15 TO 20 FEET TONIGHT.

$$

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