Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 242002
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
402 PM EDT SUN MAY 24 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.1 INCH RIDGE OF HIGH PRESSURE OVER THE UPPER GREAT
LAKES WILL WEAKEN TONIGHT AND MOVE OFF THE EAST COAST MONDAY...AS A
29.7 INCH LOW PRESSURE OVER THE CENTRAL PLAINS MAKES ITS WAY TO THE
WESTERN GREAT LAKES AND STRENGTHENS TO 29.5 INCHES. THIS LOW WILL
MOVE OVER QUEBEC TUESDAY MORNING AS A 29.6 INCH LOW MOVES INTO THE
CENTRAL PLAINS. THIS LOW WILL DISSIPATE OVER THE GREAT LAKES
WEDNESDAY MORNING...AS ANOTHER 29.6 INCH LOW MAKES ITS WAY FROM
MANITOBA TO QUEBEC. HIGH PRESSURE OF 30.3 INCHES WILL MAKE ITS WAY
FROM NORTHERN MANITOBA WEDNESDAY TO JAMES BAY THURSDAY.

LSZ162-250415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
402 PM EDT SUN MAY 24 2015

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

$$

LSZ263-250415-
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-
402 PM EDT SUN MAY 24 2015

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

$$

LSZ264-250415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
402 PM EDT SUN MAY 24 2015

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

$$

LSZ265-250415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
402 PM EDT SUN MAY 24 2015

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

$$

LSZ266-250415-
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-
402 PM EDT SUN MAY 24 2015

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

$$

LSZ267-250415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
402 PM EDT SUN MAY 24 2015

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

$$

LSZ261-250415-
MAFOR 2421/
SUPERIOR WEST 12200 12300 11213 13136. CHANCE OF SHOWERS LATE
TONIGHT. WAVES CALM TO 4 FEET.

SUPERIOR NORTH CENTRAL 11410 11400 12300 11313 11223 12236.
PATCHY FOG AFTER MIDNIGHT TONIGHT. CHANCE OF SHOWERS LATE MONDAY
MORNING. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 12310 11410 11310 11316 13226. WAVES 1 TO
3 FEET.

SUPERIOR EAST 11300 11310 11410 11310 11316 11226 12236. CHANCE
OF SHOWERS LATE TONIGHT. WAVES 1 TO 3 FEET.

$$

PETRO


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