Great Lakes Forecast
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
000
FZUS63 KMQT 120312
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1012 PM EST WED JAN 11 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.8 INCH TROUGH NEAR GEORGIAN BAY TONIGHT WILL
CONTINUE EASTWARD OVERNIGHT AND WILL BE FOLLOWED BY A 30.1 INCH
RIDGE TONIGHT INTO THURSDAY. 29.8 INCH LOW PRESSURE WILL TRACK
EASTWARD TO THE NORTH OF LAKE SUPERIOR THURSDAY AFTERNOON AND
EVENING. 30.9 INCH HIGH PRESSURE WILL THEN BUILD ACROSS THE GREAT
LAKES REGION FRIDAY. THE RIDGE WILL GRADUALLY WEAKEN TO 30.2 INCHES
THROUGH MONDAY.

LSZ162-121115-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1012 PM EST WED JAN 11 2017 /912 PM CST WED JAN 11 2017/

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

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

$$

LSZ263-121115-
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-
1012 PM EST WED JAN 11 2017

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THURSDAY MORNING
THROUGH LATE THURSDAY NIGHT...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES 1 TO 3 FEET 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 10 TO 14 FEET.
.THURSDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT 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. FREEZING SPRAY AFTER MIDNIGHT. A
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO
6 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. 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.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-121115-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1012 PM EST WED JAN 11 2017

...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY MORNING...

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES 2 TO 4 FEET 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 10 TO 14 FEET.
.THURSDAY NIGHT...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. A SLIGHT 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. FREEZING SPRAY AFTER MIDNIGHT. A
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 4 TO
7 FEET.
.SATURDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 3 TO
5 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-121115-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1012 PM EST WED JAN 11 2017

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY MORNING...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

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

$$

LSZ266-121115-
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-
1012 PM EST WED JAN 11 2017

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY MORNING...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO GALES TO
35 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 10 TO 14 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 12 TO 17 FEET...THEN SUBSIDING TO 7 TO 10 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS. 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 4 TO 7 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS. FREEZING SPRAY. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-121115-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1012 PM EST WED JAN 11 2017

...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THURSDAY EVENING
THROUGH FRIDAY MORNING...

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
20 TO 30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS.
FREEZING SPRAY IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 5 TO 8 FEET.
.THURSDAY NIGHT...WEST GALES TO 45 KNOTS BECOMING NORTHWEST GALES
TO 35 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES BUILDING TO 12 TO 17 FEET...THEN SUBSIDING TO 7 TO
10 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS. 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...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. FREEZING SPRAY IN THE MORNING. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$
LSZ261-121115-
MAFOR 1204/
SUPERIOR WEST...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...12710 11620 11540 11552 11662 11652 11752. WAVES 1 TO 2 FEET
OVERNIGHT BUILDING TO 8 TO 11 FEET THURSDAY. WAVES 8 TO 11 FEET
SUBSIDING TO 6 TO 9 FEET THURSDAY EVENING.

SUPERIOR NORTH CENTRAL...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...12720 11700 11520 11550 11562 11662 11752. FREEZING SPRAY
EARLY IN THE AFTERNOON THEN HEAVY FREEZING SPRAY LATE. CHANCE OF
SNOW SHOWERS THURSDAY AFTERNOON AND EVENING. WAVES 1 TO 3 FEET
BUILDING TO 10 TO 14 FEET THURSDAY AND THURSDAY EVENING.

SUPERIOR SOUTH CENTRAL...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...12720 11710 11620 11630 11650 12662. HEAVY FREEZING SPRAY
LATE. CHANCE OF SNOW SHOWERS LATE THURSDAY THROUGH THURSDAY EVENING.
WAVES 1 TO 4 FEET BUILDING TO 4 TO 7 FEET THURSDAY. WAVES 9 TO 12
FEET THURSDAY EVENING.

SUPERIOR EAST...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...11720 12820 11800 11620 11540 11650 11657. CHANCE OF SNOW
SHOWERS OVERNIGHT THROUGH EARLY THURSDAY EVENING. FREEZING SPRAY
LATE THURSDAY AFTERNOON THEN HEAVY FREEZING SPRAY THURSDAY EVENING.
WAVES 2 TO 5 FEET BUILDING TO 5 TO 8 FEET THURSDAY. WAVES 11 TO 15
FEET BUILDING TO 13 TO 17 FEET THURSDAY EVENING.

$$

JS



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.