Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 052003
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
403 PM EDT SUN JUL 5 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK HIGH PRESSURE RIDGE OF 30.1 INCHES OVER THE LOWER
GREAT LAKES WILL SHIFT OFF THE EAST COAST TONIGHT. MEANWHILE...A LOW
PRESSURE TROUGH AVERAGING 29.6 INCHES FROM HUDSON BAY TO THE WESTERN
PLAINS WILL SHIFT EAST...CROSSING THE UPPER GREAT LAKES MONDAY AND
MONDAY EVENING. AS THE TROUGH MOVES TO THE LOWER GREAT LAKES BY
TUESDAY EVENING...HIGH PRESSURE OF 30.1 INCHES WILL BUILD INTO THE
UPPER GREAT LAKES. THE HIGH WILL THEN LINGER OVER THE UPPER GREAT
LAKES THROUGH WEDNESDAY NIGHT. AS THE HIGH DRIFTS TO THE LOWER GREAT
LAKES THROUGH FRIDAY...A 29.7 INCH LOW PRESSURE TROUGH WILL DROP
SOUTHEAST TO NORTHERN ONTARIO AND SOUTHERN MANITOBA.

LSZ162-060415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
403 PM EDT SUN JUL 5 2015

.LATE THIS AFTERNOON...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT...THEN SHOWERS AND THUNDERSTORMS
LIKELY. WAVES CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. AREAS OF FOG. SHOWERS AND THUNDERSTORMS LIKELY. WAVES
CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. A SLIGHT CHANCE OF
RAIN SHOWERS THROUGH MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-060415-
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-
403 PM EDT SUN JUL 5 2015

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

$$

LSZ264-060415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
403 PM EDT SUN JUL 5 2015

.LATE THIS AFTERNOON...SOUTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS BY MID AFTERNOON. AREAS OF FOG. SHOWERS AND THUNDERSTORMS
LIKELY. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. AREAS OF FOG
THROUGH MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.

$$

LSZ265-060415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
403 PM EDT SUN JUL 5 2015

.LATE THIS AFTERNOON...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. PATCHY FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN SHOWERS AND
THUNDERSTORMS LIKELY. WAVES 1 TO 3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. AREAS OF FOG THROUGH MIDNIGHT. A
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES BUILDING
TO 5 TO 8 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST.
WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-060415-
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-
403 PM EDT SUN JUL 5 2015

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO
3 FEET.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN SHOWERS AND
THUNDERSTORMS LIKELY. WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE
GUSTS TO 35 KNOTS. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 7 TO 10 FEET...THEN SUBSIDING TO 3
TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ267-060415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
403 PM EDT SUN JUL 5 2015

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY...SOUTH WINDS 20 TO 30 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. AREAS OF FOG. SHOWERS AND THUNDERSTORMS LIKELY. WAVES
BUILDING TO 6 TO 9 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS. PATCHY FOG THROUGH
EARLY AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES
CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-060415-
MAFOR 0521/
SUPERIOR WEST 12420 11520 11523 11519 11319 11129 11829. PATCHY
FOG. CHANCE OF SHOWERS AND THUNDERSTORMS TONIGHT. WAVES 2 FEET OR
LESS.

SUPERIOR NORTH CENTRAL 12320 11430 11420 11520 11419 11319 11239.
PATCHY FOG. CHANCE OF SHOWERS AND THUNDERSTORMS LATE TONIGHT THROUGH
MONDAY MORNING. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11330 14430 11420 12439. PATCHY FOG MONDAY
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS MONDAY AFTERNOON.
WAVES 1 TO 4 FEET.

SUPERIOR EAST 11420 14430 12433 11449. CHANCE OF SHOWERS AND
THUNDERSTORMS MONDAY AFTERNOON. WAVES 1 TO 5 FEET.

$$

KEC



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