Great Lakes Forecast
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000
FZUS63 KMQT 281503
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1003 AM EST WED JAN 28 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...EXPECT 30.4 INCH HIGH PRESSURE CENTERED OVER OHIO TO
SHIFT OFF THE MID ATLANTIC COAST THURSDAY MORNING. 29.8 INCH LOW
PRESSURE TAKING SHAPE IN THE NORTHERN PLAINS WILL MOVE TO NEAR
CHICAGO ON THURSDAY...AND INTO NORTHERN NEW ENGLAND ON FRIDAY. THIS
WILL BE WHILE ANOTHER 29.9 INCH LOW PRESSURE SYSTEM MOVES FROM
SOUTHERN SASKATCHEWAN TO NORTHERN LAKE SUPERIOR...AND THEN INTO
QUEBEC. IN THE WAKE OF THE LOW PRESSURE SYSTEMS...30.7 INCH HIGH
PRESSURE OVER SOUTH CENTRAL CANADA WILL FOLLOW INTO THE UPPER MIDWEST
ON FRIDAY. AS THIS HIGH MOVES INTO THE MID ATLANTIC STATES
SATURDAY...30.1 INCH LOW PRESSURE WILL MOVE ACROSS THE UPPER GREAT
LAKES AND THEN TO OVER SOUTHEAST ONTARIO ON SUNDAY...WHILE WEAKENING
TO 30.2 INCHES. LOOK FOR 30.8 INCH RIDGE OF HIGH PRESSURE TO BUILD
OVER WESTERN CANADA ON SUNDAY...AND EXTEND A RIDGE AVERAGING 30.5
INCHES INTO ONTARIO JUST NORTH OF LAKE SUPERIOR.

LSZ162-282315-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1003 AM EST WED JAN 28 2015

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST IN
THE AFTERNOON. A SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES
CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES BUILDING TO 1 TO
3 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF
SNOW. HEAVY FREEZING SPRAY IN THE AFTERNOON. WAVES BUILDING TO
4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST
15 TO 25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.

$$

LSZ263-282315-
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-
1003 AM EST WED JAN 28 2015

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING...

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

$$

LSZ264-282315-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1003 AM EST WED JAN 28 2015

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES CALM TO
2 FEET BUILDING TO 2 TO 4 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW IN THE EVENING...THEN SNOW LIKELY
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO
2 TO 4 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW. WAVES BUILDING TO 9 TO 12 FEET.
.THURSDAY NIGHT...NORTH 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 BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW IN THE
EVENING...THEN SNOW LIKELY AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.

$$

LSZ265-282315-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1003 AM EST WED JAN 28 2015

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. SNOW. WAVES CALM TO
2 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES
TO 40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO
3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...NORTH GALES TO 35 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES CALM TO 2 FEET.

$$

LSZ266-282315-
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-
1003 AM EST WED JAN 28 2015

...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

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

$$

LSZ267-282315-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1003 AM EST WED JAN 28 2015

...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW IN
THE AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH AFTER
MIDNIGHT. SNOW. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO
2 TO 4 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. GALE FORCE GUSTS TO 35 KNOTS IN THE
AFTERNOON. SNOW IN THE MORNING...THEN A CHANCE OF SNOW IN THE
AFTERNOON. HEAVY FREEZING SPRAY IN THE AFTERNOON. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 9 TO 12 FEET.
.THURSDAY NIGHT...NORTH GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW IN THE EVENING...THEN
SNOW LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTH. A CHANCE OF
SNOW. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO
3 FEET.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO
4 FEET.

$$
LSZ261-282315-
MAFOR 2816/
SUPERIOR WEST 12310 11320 11420 11520 11620 11740 11741. CHANCE
OF SNOW AFTER MIDNIGHT TONIGHT. WAVES 2 FEET OR LESS THIS
AFTERNOON AND TONIGHT. WAVES 2 TO 6 FEET THURSDAY MORNING.

SUPERIOR NORTH CENTRAL 12420 11330 11440 11447 11527 11630 11742.
CHANCE OF SNOW THIS AFTERNOON THROUGH THURSDAY MORNING. WAVES 1 TO 6
FEET THIS AFTERNOON AND TONIGHT. WAVES BUILDING TO 4 TO 7 FEET
THURSDAY MORNING.

SUPERIOR SOUTH CENTRAL 11420 11430 11330 11440 11447 11437 11527
11747. WAVES 1 TO 4 FEET.

SUPERIOR EAST 13430 11340 12447 11437 11617. CHANCE OF SNOW THIS
AFTERNOON. WAVES 1 TO 6 FEET.

$$

JS



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