Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 311413
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1013 AM EDT TUE MAY 31 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.2 INCH RIDGE OVER THE GREAT LAKES...EXTENDING
FROM A 30.3 INCH HIGH PRESSURE OVER WESTERN HUDSON BAY...WILL SLIDE
EASTWARD THIS AFTERNOON. A 29.6 INCH LOW PRESSURE OVER NORTH DAKOTA
WILL TRACK 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.

LSZ162-312215-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1013 AM EDT TUE MAY 31 2016 /913 AM CDT TUE MAY 31 2016/

.REST OF TODAY...EAST WINDS 20 TO 30 KNOTS BECOMING NORTHEAST
BY MID AFTERNOON. SCATTERED RAIN SHOWERS THROUGH EARLY AFTERNOON...THEN
PERIODS OF RAIN SHOWERS AND ISOLATED THUNDERSTORMS. PATCHY FOG BY MID
AFTERNOON. WAVES 4 TO 8 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. RAIN SHOWERS 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.

$$

LSZ263-312215-
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-
1013 AM EDT TUE MAY 31 2016

.REST OF TODAY...EAST WINDS 15 TO 25 KNOTS. SCATTERED RAIN
SHOWERS. ISOLATED THUNDERSTORMS BY MID AFTERNOON. WAVES 3 TO
5 FEET BUILDING TO 4 TO 7 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS 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 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.

$$

LSZ264-312215-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1013 AM EDT TUE MAY 31 2016

.REST OF TODAY...EAST WINDS 10 TO 20 KNOTS. SCATTERED RAIN
SHOWERS BY MID AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3
FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS VEERING SOUTHEAST 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.

$$

LSZ265-312215-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1013 AM EDT TUE MAY 31 2016

.REST OF TODAY...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET
BUILDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS 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...THEN A CHANCE OF SHOWERS. 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.

$$

LSZ266-312215-
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-
1013 AM EDT TUE MAY 31 2016

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET 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...THEN A CHANCE OF RAIN SHOWERS. 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.

$$

LSZ267-312215-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1013 AM EDT TUE MAY 31 2016

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 15 TO
25 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 3 TO 6 FEET 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.

$$
LSZ261-312215-
MAFOR 3115/
SUPERIOR WEST 11240 11246 11146 11236 11226 11216 12303.
SCATTERED SHOWERS. ISOLATED THUNDERSTORMS LATE THIS AFTERNOON.
PATCHY FOG THIS EVENING THROUGH WEDNESDAY MORNING. WAVES 5 TO 8 FEET
THIS AFTERNOON SUBSIDING TO 2 TO 5 FEET TONIGHT AND WEDNESDAY MORNING.

SUPERIOR NORTH CENTRAL 12220 11230 11220 11236 13336. PATCHY FOG
LATE THIS EVENING THROUGH WEDNESDAY MORNING. CHANCE OF SHOWERS THIS
EVENING. WAVES 1 TO 4 FEET THIS AFTERNOON AND TONIGHT BUILDING TO 3
TO 7 FEET WEDNESDAY MORNING.

SUPERIOR SOUTH CENTRAL 13220 11230 12320 12336. CHANCE OF SHOWERS
FROM LATE EVENING ON TONIGHT. WAVES 1 TO 5 FEET.

SUPERIOR EAST 11100 12110 11220 11320 13330. CHANCE OF SHOWERS
LATE TONIGHT AND WEDNESDAY MORNING. WAVES 1 TO 6 FEET.

$$

PETRO



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