Great Lakes Forecast
Issued by NWS

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148
FZUS63 KMQT 310757
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
357 AM EDT TUE MAY 31 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.0 INCH RIDGE EXTENDING ACROSS LAKE SUPERIOR FROM
30.3 INCH HIGH PRESSURE OVER WESTERN HUDSON BAY WILL EXPAND ACROSS
THE GREAT LAKES REGION TODAY AS 29.6 INCH LOW PRESSURE ORGANIZES
OVER THE NORTHERN PLAINS. THE LOW WILL DRIFT FROM NORTH DAKOTA THIS
AFTERNOON TO NORTH OF LAKE SUPERIOR LATE WEDNESDAY NIGHT AND WEAKEN
TO 29.8 INCHES AS THE RIDGE MOVES TO NEW ENGLAND. THE LOW WILL MOVE
TOWARD SOUTHERN JAMES BAY ON THURSDAY AND NORTHERN QUEBEC ON FRIDAY
AS A 30.1 INCH RIDGE DRIFTS FROM THE NORTHERN PLAINS TO THE UPPER
GREAT LAKES. THE RIDGE WILL MOVE ACROSS THE LOWER GREAT LAKES ON
SATURDAY WHILE A 29.8 INCH LOW MOVES SOUTHEASTWARD ACROSS THE UPPER
MISSISSIPPI VALLEY.

LSZ162-311600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
357 AM EDT TUE MAY 31 2016 /257 AM CDT TUE MAY 31 2016/

.EARLY THIS MORNING...EAST WINDS 15 TO 25 KNOTS. SCATTERED RAIN
SHOWERS. WAVES 3 TO 5 FEET BUILDING TO 4 TO 7 FEET.
.TODAY...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
BY MID AFTERNOON. PERIODS OF RAIN SHOWERS. ISOLATED THUNDERSTORMS
BY MID AFTERNOON. PATCHY FOG BY MID AFTERNOON. WAVES BUILDING TO
5 TO 8 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. RAIN SHOWERS LIKELY AND A
SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. A CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. AREAS OF FOG. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES
1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG THROUGH
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH MIDNIGHT. WAVES
1 TO 3 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ263-311600-
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-
357 AM EDT TUE MAY 31 2016

.EARLY THIS MORNING...EAST WINDS 15 TO 25 KNOTS. ISOLATED RAIN
SHOWERS. WAVES 2 TO 4 FEET.
.TODAY...EAST WINDS 15 TO 25 KNOTS. SCATTERED RAIN SHOWERS
THROUGH EARLY AFTERNOON...THEN NUMEROUS RAIN SHOWERS AND ISOLATED
THUNDERSTORMS BY MID AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. AREAS OF FOG. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. RAIN SHOWERS LIKELY. WAVES SUBSIDING TO 2 TO 4 FEET...
THEN BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT. AREAS OF FOG. WAVES SUBSIDING TO 1 TO 3 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ264-311600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
357 AM EDT TUE MAY 31 2016

.EARLY THIS MORNING...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TODAY...EAST WINDS 10 TO 20 KNOTS. SCATTERED RAIN SHOWERS BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY. PATCHY FOG AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH BY MID
AFTERNOON. AREAS OF FOG. A CHANCE OF RAIN SHOWERS. WAVES BUILDING
TO 5 TO 8 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT. AREAS OF FOG. WAVES SUBSIDING TO 1 TO 3 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. AREAS OF FOG THROUGH EARLY AFTERNOON.
WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. A CHANCE OF
RAIN SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTH. A CHANCE OF
RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ265-311600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
357 AM EDT TUE MAY 31 2016

.EARLY THIS MORNING...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...EAST WINDS 10 TO 20 KNOTS. ISOLATED RAIN SHOWERS BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. A CHANCE OF SHOWERS THROUGH MIDNIGHT...THEN SHOWERS
LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG. SHOWERS LIKELY THROUGH
EARLY AFTERNOON. A CHANCE OF SHOWERS BY MID AFTERNOON. WAVES
BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. A CHANCE OF
RAIN SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ266-311600-
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-
357 AM EDT TUE MAY 31 2016

.EARLY THIS MORNING...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS BY
MID AFTERNOON. ISOLATED RAIN SHOWERS BY MID AFTERNOON. WAVES
BUILDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING
TO 3 TO 6 FEET.
.WEDNESDAY...SOUTHEAST WINDS 20 TO 30 KNOTS BECOMING SOUTH 15 TO
25 KNOTS BY MID AFTERNOON. AREAS OF FOG. RAIN SHOWERS LIKELY
THROUGH EARLY AFTERNOON. A CHANCE OF RAIN SHOWERS BY MID
AFTERNOON. WAVES BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 3 TO
6 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. AREAS OF FOG. WAVES
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST. A
CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTH. A CHANCE OF
RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ267-311600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
357 AM EDT TUE MAY 31 2016

.EARLY THIS MORNING...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...SOUTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON...THEN SHOWERS BY MID AFTERNOON. PATCHY FOG BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. AREAS OF FOG. WAVES
BUILDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST. WAVES
CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ261-311600-
MAFOR 3109/
SUPERIOR WEST 12230 13246 11236 11226 11216. SCATTERED SHOWERS
THIS MORNING. ISOLATED THUNDERSTORMS LATE TODAY. PATCHY FOG
TONIGHT. SLIGHT CHANCE OF THUNDERSTORMS THIS EVENING INTO THE EARLY
OVERNIGHT. WAVES 3 TO 8 FEET.

SUPERIOR NORTH CENTRAL 11110 11210 13220 11230 11236 11336.
SCATTERED RAIN SHOWERS LATE TODAY. CHANCE OF SHOWERS THIS EVENING.
PATCHY FOG LATE TONIGHT. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11110 12210 13220 12320. CHANCE OF SHOWERS
FROM LATE EVENING THROUGH THE OVERNIGHT. WAVES 1 TO 3 FEET.

SUPERIOR EAST 11110 13100 11110 11210 11220 11330. WAVES 4 FEET OR
LESS.

$$

KC



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