Great Lakes Forecast
Issued by NWS

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837
FZUS63 KMQT 281400
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1000 AM EDT SAT MAY 28 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29. INCH LOW PRESSURE OVER IOWA WILL DRIFT SLOWLY
ACROSS WESTERN LAKE SUPERIOR AND INTO ONTARIO THROUGH SUNDAY. AS
THIS LOW EXITS INTO QUEBEC ON MONDAY...A 29.9 INCH RIDGE AXIS WILL
BUILD INTO THE UPPER GREAT LAKES SOUTH OF A LARGER 30.4 INCH HIGH
PRESSURE CENTER MOVING OVER HUDSON BAY ON TUESDAY. A 29.7 INCH LOW
PRESSURE TAKING SHAPE ACROSS THE NORTHERN PLAINS ON TUESDAY WILL
DRIFT INTO MINNESOTA ON WEDNESDAY TO THE SOUTH OF THE NEARLY
STATIONARY HIGH PRESSURE SYSTEM OVER HUDSON BAY.

LSZ162-282200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1000 AM EDT SAT MAY 28 2016 /900 AM CDT SAT MAY 28 2016/

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM EDT /5 PM CDT/
SUNDAY...

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS BY MID AFTERNOON. WIDESPREAD DENSE FOG. SCATTERED RAIN
SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO 3 FEET SUBSIDING TO
CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST LESS
THAN 10 KNOTS AFTER MIDNIGHT. WIDESPREAD DENSE FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. WIDESPREAD DENSE FOG THROUGH EARLY
AFTERNOON. PATCHY FOG BY MID AFTERNOON. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS. A
CHANCE OF THUNDERSTORMS. RAIN SHOWERS LIKELY. WAVES BUILDING TO
1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ263-282200-
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-
1000 AM EDT SAT MAY 28 2016

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM EDT SUNDAY...

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS BY MID AFTERNOON. WIDESPREAD DENSE FOG. SCATTERED RAIN
SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO 3 FEET SUBSIDING
TO CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST LESS
THAN 10 KNOTS AFTER MIDNIGHT. WIDESPREAD DENSE FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. WIDESPREAD DENSE FOG THROUGH EARLY AFTERNOON. PATCHY FOG
BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM
TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG THROUGH
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS. A
CHANCE OF THUNDERSTORMS. RAIN SHOWERS LIKELY. WAVES BUILDING TO
1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ264-282200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1000 AM EDT SAT MAY 28 2016

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM EDT SUNDAY...

.REST OF TODAY...EAST WINDS 10 TO 20 KNOTS. WIDESPREAD DENSE FOG.
NUMEROUS RAIN SHOWERS. ISOLATED THUNDERSTORMS. WAVES 1 TO 3 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS THAN
10 KNOTS AFTER MIDNIGHT. WIDESPREAD DENSE FOG. A CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WIDESPREAD DENSE FOG
THROUGH EARLY AFTERNOON. AREAS OF FOG BY MID AFTERNOON. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. PATCHY FOG. WAVES
CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
A CHANCE OF RAIN SHOWERS. A CHANCE OF THUNDERSTORMS. WAVES CALM
TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING
TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-282200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1000 AM EDT SAT MAY 28 2016

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM EDT SUNDAY...

.REST OF TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WIDESPREAD DENSE
FOG. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO 3
FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. WIDESPREAD DENSE FOG. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2
FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. WIDESPREAD DENSE FOG THROUGH EARLY AFTERNOON. AREAS OF
FOG BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES CALM
TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS. A
CHANCE OF THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.

$$

LSZ266-282200-
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-
1000 AM EDT SAT MAY 28 2016

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM EDT SUNDAY...

.REST OF TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WIDESPREAD DENSE
FOG. SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO 3
FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. WIDESPREAD DENSE FOG. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2
FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. WIDESPREAD DENSE FOG THROUGH EARLY AFTERNOON. AREAS OF
FOG BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON.
WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
A CHANCE OF RAIN SHOWERS. A CHANCE OF THUNDERSTORMS. WAVES CALM
TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-282200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1000 AM EDT SAT MAY 28 2016

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM EDT SUNDAY...

.REST OF TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WIDESPREAD DENSE
FOG. PERIODS OF SHOWERS THROUGH EARLY AFTERNOON...THEN SCATTERED
SHOWERS. ISOLATED THUNDERSTORMS. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. AREAS OF DENSE FOG THROUGH
MIDNIGHT. WIDESPREAD DENSE FOG AFTER MIDNIGHT. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING SUBSIDING TO CALM TO 2
FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WIDESPREAD DENSE FOG THROUGH EARLY AFTERNOON.
AREAS OF FOG BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING EAST. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$
LSZ261-282200-
MAFOR 2815/
SUPERIOR WEST...DENSE FOG ADVISORY IN EFFECT...11124 12114 12104
11704 11504 11504. SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS.
WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL...DENSE FOG ADVISORY IN EFFECT...11224
11214 12204 11304 11404 11504 11504. SCATTERED SHOWERS WITH ISOLATED
THUNDERSTORMS. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL...DENSE FOG ADVISORY IN EFFECT...11324
13314 12414 11404 11404. SCATTERED SHOWERS WITH ISOLATED
THUNDERSTORMS. WAVES 1 TO 2 FEET.

SUPERIOR EAST...DENSE FOG ADVISORY IN EFFECT...11324 13314 13414
11414. SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS. WAVES 2 TO 3
FEET.

$$

PETRO



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