Great Lakes Forecast
Issued by NWS

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980
FZUS63 KMQT 112105
GLFLS

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

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.8 INCH TROUGH OVER EASTERN LAKE SUPERIOR LATE
THIS AFTERNOON WILL CONTINUE EASTWARD THIS EVENING...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.

LSZ162-120515-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
405 PM EST WED JAN 11 2017 /305 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...

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 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.

$$

LSZ263-120515-
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-
405 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...

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE
OF SNOW SHOWERS. WAVES 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A SLIGHT 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 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.

$$

LSZ264-120515-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
405 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...

.LATE THIS AFTERNOON...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE
OF SNOW SHOWERS. WAVES 3 TO 5 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A SLIGHT 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 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.

$$

LSZ265-120515-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
405 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...

.LATE THIS AFTERNOON...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
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.

$$

LSZ266-120515-
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-
405 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...

.LATE THIS AFTERNOON...NORTHWEST WINDS 15 TO 25 KNOTS. FREEZING
SPRAY. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 6 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 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 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.

$$

LSZ267-120515-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
405 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...

.LATE THIS AFTERNOON...WEST WINDS 15 TO 25 KNOTS. FREEZING SPRAY.
A CHANCE OF SNOW SHOWERS. WAVES 3 TO 6 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH AFTER
MIDNIGHT. FREEZING SPRAY IN THE EVENING. A CHANCE OF SNOW
SHOWERS. WAVES 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.

$$

LSZ261-120515-
MAFOR 1122/
SUPERIOR WEST...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...11720 13710 11620 11540 11552 11662. WAVES 1 TO 3 FEET
TONIGHT BUILDING TO 8 TO 11 FEET THURSDAY.

SUPERIOR NORTH CENTRAL...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...11730 13720 11700 11520 11550 11562. CHANCE OF SNOW SHOWERS
EARLY THIS EVENING THROUGH THURSDAY AFTERNOON. FREEZING SPRAY EARLY
THURSDAY AFTERNOON THEN HEAVY FREEZING SPRAY LATE. WAVES 1 TO 5 FEET
BUILDING TO 9 TO 12 FEET THURSDAY.

SUPERIOR SOUTH CENTRAL...GALE AND HEAVY FREEZING SPRAY WARNINGS IN
EFFECT...11730 13720 11710 11620 11630 11650. CHANCE OF SNOW SHOWERS
EARLY THIS EVENING. WAVES 1 TO 6 FEET.

SUPERIOR EAST...GALE WARNING IN EFFECT...12730 11720 12820 11800
11620 11550. FREEZING SPRAY THIS EVENING. CHANCE OF SNOW SHOWERS
TONIGHT THROUGH THURSDAY. WAVES 2 TO 6 FEET.

$$

JS



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