Great Lakes Forecast
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000
FZUS63 KMQT 110313
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1013 PM EST TUE JAN 10 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.0 INCH LOW CENTERED JUST TO THE NORTH OF SAULT
SAINT MARIE TONIGHT WILL REACH SOUTHERN JAMES BAY OVERNIGHT WHILE
STRENGTHENING TO 28.8 INCHES. A 29.8 INCH TROUGH LINGERING OVER THE
UPPER GREAT LAKES THROUGH WEDNESDAY AFTERNOON WILL BE FOLLOWED BY A
30.1 INCH RIDGE WEDNESDAY NIGHT INTO THURSDAY. 29.8 INCH LOW PRESSURE
WILL TRACK EASTWARD TO THE NORTH OF LAKE SUPERIOR THURSDAY AFTERNOON
AND EVENING. 30.7 INCH HIGH PRESSURE WILL THEN BUILD ACROSS THE GREAT
LAKES REGION FRIDAY THROUGH SUNDAY.

LSZ162-111115-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1013 PM EST TUE JAN 10 2017 /913 PM CST TUE JAN 10 2017/

...GALE WARNING IN EFFECT UNTIL 7 AM EST /6 AM CST/ WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
AFTERNOON...

.REST OF TONIGHT...WEST GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF SNOW.
WAVES 7 TO 10 FEET SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS IN THE EVENING.
WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST GALES TO
35 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE AFTERNOON.
A SLIGHT CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES BUILDING
TO 5 TO 8 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE
EVENING. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ263-111115-
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-
1013 PM EST TUE JAN 10 2017

...GALE WARNING IN EFFECT UNTIL 7 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
AFTERNOON...

.REST OF TONIGHT...WEST GALES TO 45 KNOTS. HEAVY FREEZING SPRAY.
A CHANCE OF SNOW. WAVES 9 TO 12 FEET BUILDING TO 11 TO 15 FEET...
THEN SUBSIDING TO 8 TO 11 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY 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. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST GALES TO
40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. HEAVY
FREEZING SPRAY IN THE AFTERNOON. WAVES BUILDING TO 8 TO 11 FEET.
.THURSDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE
EVENING. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ264-111115-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1013 PM EST TUE JAN 10 2017

...GALE WARNING IN EFFECT UNTIL 7 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 1 AM EST WEDNESDAY
THROUGH WEDNESDAY EVENING...

.REST OF TONIGHT...WEST GALES TO 45 KNOTS WITH A FEW STORM FORCE
WINDS TO 50 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW. WAVES 5 TO 8 FEET BUILDING TO 11 TO 15 FEET...THEN SUBSIDING
TO 9 TO 12 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
IN THE AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST GALES TO
40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. HEAVY
FREEZING SPRAY IN THE AFTERNOON. WAVES BUILDING TO 8 TO 11 FEET.
.THURSDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET.

$$

LSZ265-111115-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1013 PM EST TUE JAN 10 2017

...STORM WARNING IN EFFECT UNTIL 7 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 1 AM EST WEDNESDAY
THROUGH WEDNESDAY EVENING...

.REST OF TONIGHT...WEST STORM FORCE WINDS TO 55 KNOTS DIMINISHING
TO GALES TO 45 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW. WAVES 4 TO 7 FEET BUILDING TO 10 TO 14 FEET...
THEN SUBSIDING TO 6 TO 9 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING.
SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 5 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. HEAVY
FREEZING SPRAY IN THE AFTERNOON. WAVES BUILDING TO 5 TO 8 FEET.
.THURSDAY NIGHT...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS
LIKELY IN THE EVENING. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
WAVES BUILDING TO 6 TO 9 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-111115-
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-
1013 PM EST TUE JAN 10 2017

...STORM WARNING IN EFFECT UNTIL 7 AM EST WEDNESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 1 AM EST WEDNESDAY
THROUGH WEDNESDAY EVENING...

.REST OF TONIGHT...WEST STORM FORCE WINDS TO 55 KNOTS DIMINISHING
TO GALES TO 45 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW
LATE IN THE EVENING. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES 8 TO 12
FEET BUILDING TO 17 TO 22 FEET...THEN SUBSIDING TO 12 TO 17 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY.
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...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. HEAVY
FREEZING SPRAY IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 9 TO 12 FEET.
.THURSDAY NIGHT...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES BUILDING TO 10 TO 14 FEET...THEN SUBSIDING TO 5 TO
8 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING.
SNOW SHOWERS LIKELY IN THE MORNING...THEN A CHANCE OF SNOW
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 3 TO 6 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO
3 FEET.

$$

LSZ267-111115-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1013 PM EST TUE JAN 10 2017

...STORM WARNING IN EFFECT UNTIL 7 AM EST WEDNESDAY...

.REST OF TONIGHT...WEST STORM FORCE WINDS TO 50 KNOTS. SNOW LATE
IN THE EVENING...THEN A CHANCE OF SNOW AFTER MIDNIGHT. FREEZING
SPRAY AFTER MIDNIGHT. WAVES 4 TO 7 FEET BUILDING TO 17 TO 22
FEET...THEN SUBSIDING TO 15 TO 20 FEET.
.WEDNESDAY...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY.
WAVES SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING WEST 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 5 TO 8 FEET.
.THURSDAY NIGHT...WEST GALES TO 40 KNOTS BECOMING NORTHWEST GALES
TO 35 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS IN THE EVENING. SNOW SHOWERS LIKELY AFTER MIDNIGHT.
WAVES BUILDING TO 11 TO 15 FEET...THEN SUBSIDING TO 6 TO 9 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 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 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 3 TO 5 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.

$$
LSZ261-111115-
MAFOR 1104/
SUPERIOR WEST...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...13652 11637 11630 11730 11720 11710. HEAVY FREEZING SPRAY
OVERNIGHT THROUGH MID WEDNESDAY MORNING. CHANCE OF SNOW LATE
OVERNIGHT THROUGH EARLY WEDNESDAY AFTERNOON. WAVES 8 TO 11 FEET
SUBSIDING TO 5 TO 8 FEET OVERNIGHT. WAVES 5 TO 8 FEET SUBSIDING TO 1
TO 4 FEET WEDNESDAY AND WEDNESDAY EVENING.

SUPERIOR NORTH CENTRAL...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...11660 11662 11652 11657 12630 11730 11720. FREEZING SPRAY
AND HEAVY FREEZING SPRAY OVERNIGHT THROUGH MID WEDNESDAY
MORNING...THEN FREEZING SPRAY THROUGH WEDNESDAY. CHANCE OF SNOW
OVERNIGHT THROUGH WEDNESDAY EVENING. WAVES 10 TO 15 FEET OVERNIGHT.
WAVES 9 TO 12 FEET SUBSIDING TO 3 TO 5 FEET WEDNESDAY AND WEDNESDAY
EVENING.

SUPERIOR SOUTH CENTRAL...STORM AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...11677 11672 11652 11647 11637 11640 11740 11720. FREEZING
SPRAY LATE THIS EVENING...THEN HEAVY FREEZING SPRAY WEDNESDAY
MORNING. CHANCE OF SNOW OVERNIGHT THROUGH WEDNESDAY EVENING. WAVES
11 TO 15 FEET BUILDING TO 12 TO 17 FEET OVERNIGHT. WAVES 8 TO 11 FEET
SUBSIDING TO 2 TO 5 FEET WEDNESDAY AND WEDNESDAY EVENING.

SUPERIOR EAST...STORM WARNING IN EFFECT...11677 11671 11660 12547
11647 11747 11727. FREEZING SPRAY OVERNIGHT THROUGH WEDNESDAY EVENING.
CHANCE OF SNOW LATE OVERNIGHT. WAVES 10 TO 14 FEET BUILDING TO 17 TO
22 FEET OVERNIGHT. WAVES 14 TO 18 FEET SUBSIDING TO 3 TO 8 FEET
WEDNESDAY AND WEDNESDAY EVENING.

$$

JS


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