Great Lakes Forecast
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165
FZUS63 KMQT 312017
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
417 PM EDT TUE MAY 31 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.1 INCH RIDGE OVER THE LOWER GREAT LAKES...EXTENDING
FROM A 30.4 INCH HIGH PRESSURE OVER HUDSON BAY...WILL CONTINUE
EASTWARD TONIGHT. 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. THE LOW WILL DEEPEN TO 29.5 INCHES AS IT MOVES
ACROSS THE WESTERN GREAT LAKES ON SUNDAY.

LSZ162-010430-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
417 PM EDT TUE MAY 31 2016 /317 PM CDT TUE MAY 31 2016/

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

$$

LSZ263-010430-
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-
417 PM EDT TUE MAY 31 2016

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

$$

LSZ264-010430-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
417 PM EDT TUE MAY 31 2016

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

$$

LSZ265-010430-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
417 PM EDT TUE MAY 31 2016

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

$$

LSZ266-010430-
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-
417 PM EDT TUE MAY 31 2016

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

$$

LSZ267-010430-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
417 PM EDT TUE MAY 31 2016

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

$$

LSZ261-010430-
MAFOR 3121/
SUPERIOR WEST 11246 11236 11226 11223 11303 12203 11603. PATCHY
FOG THIS EVENING THROUGH WEDNESDAY MORNING. SCATTERED RAIN SHOWERS
WITH ISOLATED THUNDERSTORMS THROUGH LATE TONIGHT. WAVES 5 TO 8 FEET
SUBSIDING TO 1 TO 4 FEET TONIGHT AND WEDNESDAY.

SUPERIOR NORTH CENTRAL 12220 11236 13336 11333 11323. SCATTERED
SHOWERS EARLY THIS EVENING THROUGH LATE WEDNESDAY MORNING. ISOLATED
THUNDERSTORMS LATE TONIGHT THROUGH LATE WEDNESDAY MORNING. PATCHY
FOG LATE TONIGHT THROUGH MID MORNING. WAVES 1 TO 6 FEET.

SUPERIOR SOUTH CENTRAL 12220 11320 13336 11320 11323. SCATTERED
SHOWERS AFTER MIDNIGHT THROUGH LATE WEDNESDAY. ISOLATED
THUNDERSTORMS LATE TONIGHT THROUGH LATE WEDNESDAY. WAVES 1 TO 5
FEET.

SUPERIOR EAST 11110 12220 12330 11336 11326 11333. SCATTERED
SHOWERS AFTER MIDNIGHT THROUGH LATE WEDNESDAY. ISOLATED
THUNDERSTORMS LATE TONIGHT THROUGH WEDNESDAY MORNING. WAVES 1 TO 5
FEET.

$$

JS



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