Great Lakes Forecast
Issued by NWS

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734
FZUS63 KMQT 310147
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
947 PM EDT MON MAY 30 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK TROUGH AVERAGING 29.9 INCHES EXTENDING ACROSS
LAKE SUPERIOR INTO THE NORTHERN PLAINS WILL SAG SLOWLY SOUTH TONIGHT
AND TUESDAY AS HIGH PRESSURE OVER HUDSON BAY STRENGTHENS TO 30.4
INCHES. LOW PRESSURE OF 29.7 INCHES OVER SOUTH DAKOTA WILL DRIFT TO
NORTHERN MINNESOTA BY THEN. AS THE HIGH RETREATS TO THE EAST...THE
LOW WILL MOVE OVER LAKE SUPERIOR TOWARD JAMES BAY ON THURSDAY AND
NORTHERN QUEBEC FRIDAY. A 30.1 INCH RIDGE OF HIGH PRESSURE WILL BUILD
OVER THE GREAT LAKES FRIDAY AS LOW PRESSURE OF 29.7 INCHES DEEPENS
OVER THE CANADIAN PRAIRIE PROVINCES.

LSZ162-311000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
947 PM EDT MON MAY 30 2016 /847 PM CDT MON MAY 30 2016/

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 4 TO 7 FEET.
.TUESDAY...EAST WINDS 20 TO 30 KNOTS BECOMING NORTHEAST 15 TO
25 KNOTS BY MID AFTERNOON. PATCHY FOG. RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING 3 TO 6
FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST
AFTER MIDNIGHT. AREAS OF FOG. RAIN SHOWERS LIKELY AND A SLIGHT
CHANCE OF THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. AREAS OF FOG. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG. WAVES
CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST. A CHANCE OF
RAIN SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST. A
CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ263-311000-
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-
947 PM EDT MON MAY 30 2016

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 3 TO
5 FEET.
.TUESDAY...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON...THEN RAIN SHOWERS LIKELY BY MID
AFTERNOON. PATCHY FOG BY MID AFTERNOON. WAVES TO 3 TO 6 FEET.
.TUESDAY NIGHT...EAST WINDS 15 TO 25 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. AREAS OF FOG. RAIN SHOWERS LIKELY. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST
AFTER MIDNIGHT. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG. WAVES 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...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.

$$

LSZ264-311000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
947 PM EDT MON MAY 30 2016

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TUESDAY...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY NIGHT...EAST WINDS 15 TO 25 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. RAIN SHOWERS LIKELY. PATCHY FOG AFTER MIDNIGHT.
WAVES 3 TO 6 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH BY MID
AFTERNOON. AREAS OF FOG. RAIN SHOWERS LIKELY THROUGH EARLY
AFTERNOON. A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST
AFTER MIDNIGHT. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG. WAVES 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...EAST WINDS 5 TO 15 KNOTS BACKING NORTH. A CHANCE OF
RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ265-311000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
947 PM EDT MON MAY 30 2016

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES BUILDING
TO 2 TO 4 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT...THEN RAIN SHOWERS LIKELY AFTER MIDNIGHT. WAVES
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING 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 AND A SLIGHT CHANCE OF
THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS THROUGH MIDNIGHT. PATCHY
FOG. WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. 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...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.

$$

LSZ266-311000-
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-
947 PM EDT MON MAY 30 2016

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. PATCHY
FOG AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...SOUTHEAST WINDS 20 TO 30 KNOTS BECOMING SOUTH 15 TO
25 KNOTS BY MID AFTERNOON. AREAS OF FOG. RAIN SHOWERS LIKELY. A
SLIGHT CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING
TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS THROUGH MIDNIGHT. PATCHY
FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTH 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.

$$

LSZ267-311000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
947 PM EDT MON MAY 30 2016

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. PATCHY FOG BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH MIDNIGHT. PATCHY FOG.
WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES 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.

$$
LSZ261-311000-
MAFOR 3103/
SUPERIOR WEST 11230 13240 12246 11146 11236. PATCHY FOG TUESDAY
AFTERNOON THROUGH EARLY TUESDAY EVENING. CHANCE OF SHOWERS LATE
TUESDAY MORNING. WAVES 1 TO 5 FEET BUILDING TO 3 TO 7 FEET
TUESDAY AND TUESDAY EVENING.

SUPERIOR NORTH CENTRAL 11820 12110 14220 11230. CHANCE OF SHOWERS
TUESDAY EVENING. WAVES 1 TO 4 FEET BUILDING TO 3 TO 6 FEET TUESDAY
EVENING.

SUPERIOR SOUTH CENTRAL 11810 12110 14220 11220. CHANCE OF SHOWERS
LATE TUESDAY EVENING. WAVES 1 TO 5 FEET.

SUPERIOR EAST 11720 11810 12110 11100 12110 11220. WAVES 1 TO 3
FEET.

$$

JS



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