Great Lakes Forecast
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000
FZUS63 KMQT 140251
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
951 PM EST FRI JAN 13 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.8 INCH HIGH PRESSURE OVER THE UPPER GREAT LAKES WILL
REACH THE NORTHEASTERN STATES ON SATURDAY. MEANWHILE...A 30.3 INCH
TROUGH OVER NORTHERN ONTARIO WILL BRUSH LAKE SUPERIOR ON SATURDAY. A
30.5 INCH RIDGE WILL THEN BUILD ACROSS THE UPPER MISSISSIPPI RIVER
VALLEY SATURDAY AND GREAT LAKES ON SUNDAY BEFORE WEAKENING ON MONDAY.
29.6 INCH LOW PRESSURE WILL THEN TRACK NORTHEASTWARD INTO THE UPPER
GREAT LAKES REGION ON TUESDAY...AND BE FOLLOWED BY A WEAK 29.8 INCH
RIDGE ON WEDNESDAY.

LSZ162-141100-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
951 PM EST FRI JAN 13 2017 /851 PM CST FRI JAN 13 2017/

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
AFTERNOON...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY AFTER
MIDNIGHT. WAVES 2 TO 4 FEET BUILDING TO 5 TO 8 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING.
WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING
TO 2 TO 4 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING EAST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ263-141100-
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-
951 PM EST FRI JAN 13 2017

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
AFTERNOON...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT. A
SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES 2 TO 4 FEET
BUILDING TO 7 TO 10 FEET.
.SATURDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING. A
SLIGHT CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES SUBSIDING TO
2 TO 4 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
6 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING
TO 2 TO 4 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING EAST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING WEST. A CHANCE
OF RAIN...POSSIBLY MIXED WITH FREEZING RAIN...SNOW AND SLEET.
WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-141100-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
951 PM EST FRI JAN 13 2017

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
AFTERNOON...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
GALES TO 35 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW
SHOWERS. HEAVY FREEZING SPRAY AFTER MIDNIGHT. WAVES 1 TO 3 FEET
BUILDING TO 7 TO 10 FEET.
.SATURDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE
MORNING. HEAVY FREEZING SPRAY. WAVES SUBSIDING TO 3 TO 5 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES SUBSIDING TO 3 TO 5 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE OF
FREEZING RAIN. A CHANCE OF RAIN...POSSIBLY MIXED WITH SNOW AND
SLEET. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
6 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-141100-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
951 PM EST FRI JAN 13 2017

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO
3 TO 6 FEET.
.SATURDAY...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY IN THE
MORNING. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO
5 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 1 TO
3 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE OF
FREEZING RAIN. A CHANCE OF RAIN...POSSIBLY MIXED WITH SNOW. WAVES
BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-141100-
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-
951 PM EST FRI JAN 13 2017

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
FREEZING SPRAY AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO
7 TO 10 FEET.
.SATURDAY...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
4 TO 7 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF RAIN IN THE EVENING. A CHANCE OF
SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS. A CHANCE OF FREEZING RAIN. A CHANCE OF RAIN...POSSIBLY
MIXED WITH SNOW AND SLEET. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-141100-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
951 PM EST FRI JAN 13 2017

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS
LATE IN THE EVENING. FREEZING SPRAY AFTER MIDNIGHT. WAVES CALM TO 2
FEET BUILDING TO 4 TO 7 FEET.
.SATURDAY...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET...THEN SUBSIDING
TO 4 TO 7 FEET.
.SATURDAY NIGHT...NORTHWEST 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 INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES 2 TO
4 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS VEERING WEST. RAIN LIKELY...
POSSIBLY MIXED WITH FREEZING RAIN. A CHANCE OF SLEET. A CHANCE OF
RAIN. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO
2 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$
LSZ261-141100-
MAFOR 1404/
SUPERIOR WEST...HEAVY FREEZING SPRAY WARNING IN EFFECT...11530
11542 11642 11640 11630 12620 11610. HEAVY FREEZING SPRAY AFTER
MIDNIGHT THROUGH SATURDAY MORNING. FREEZING SPRAY SATURDAY
AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 5 TO 8 FEET OVERNIGHT. WAVES
5 TO 8 FEET SUBSIDING TO 1 TO 4 FEET SATURDAY.

SUPERIOR NORTH CENTRAL...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11542 11540 11650 12640 12630 11720. HEAVY FREEZING SPRAY THROUGH
MID MORNING. FREEZING SPRAY IN THE AFTERNOON. CHANCE OF SNOW SHOWERS
THROUGH MID MORNING SATURDAY. WAVES 3 TO 5 FEET BUILDING TO 6 TO 9
FEET OVERNIGHT. WAVES 7 TO 10 FEET SUBSIDING TO 2 TO 5 FEET
SATURDAY.

SUPERIOR SOUTH CENTRAL 11520 11530 14640 11630 11620. FREEZING
SPRAY SATURDAY. WAVES 1 TO 6 FEET.

SUPERIOR EAST 11530 12540 11640 12641 11730 11720. FREEZING SPRAY
LATE OVERNIGHT THROUGH THE AFTERNOON. CHANCE OF SNOW SHOWERS
SATURDAY AFTERNOON. WAVES 2 TO 3 FEET BUILDING TO 4 TO 7 FEET
OVERNIGHT. WAVES 5 TO 9 FEET SATURDAY. WAVES 4 TO 7 FEET SATURDAY
EVENING.

$$

PETRO



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