Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 270143
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
943 PM EDT FRI JUN 26 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A BROAD 30.1 INCH HIGH PRESSURE RIDGE EXTENDING FROM THE
CENTRAL PLAINS ACROSS THE UPPER GREAT LAKES AND INTO QUEBEC WILL
REMAIN NEARLY STATIONARY THROUGH SATURDAY. AT THE SAME TIME...A 29.8
INCH LOW PRESSURE SYSTEM OVER THE MID MISSISSIPPI RIVER VALLEY WILL
PUSH EAST THROUGH THE OHIO RIVER VALLEY AND INTO THE MID ATLANTIC
STATES ON SATURDAY WHILE DEEPENING TO 29.5 INCHES. ON SUNDAY AND
MONDAY...EXPECT A LOW PRESSURE TROUGH AVERAGING 29.8 INCHES TO DROP
SOUTHEAST THROUGH ONTARIO AND THE UPPER MISSISSIPPI RIVER VALLEY INTO
THE GREAT LAKES. A WEAK HIGH PRESSURE RIDGE AVERAGING 29.9 INCHES
WILL BUILD TOWARD THE UPPER LAKES ON TUESDAY AS THE TROUGH SWINGS TO
THE SOUTHEAST. THIS HIGH PRESSURE SYSTEM WILL THEN BUILD TO 30.1
INCHES AS IT BECOMES CENTERED OVER LAKE SUPERIOR DURING THE DAY
WEDNESDAY.

LSZ162-270945-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
943 PM EDT FRI JUN 26 2015

.REST OF TONIGHT...EAST WINDS LESS THAN 10 KNOTS VEERING WEST
AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS BACKING SOUTH BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS LESS THAN 10 KNOTS BECOMING
EAST 5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM
TO 2 FEET.

$$

LSZ263-270945-
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-
943 PM EDT FRI JUN 26 2015

.REST OF TONIGHT...EAST WINDS LESS THAN 10 KNOTS VEERING SOUTH
AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS. PATCHY FOG. WAVES
CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS LESS THAN 10 KNOTS BACKING WEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-270945-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
943 PM EDT FRI JUN 26 2015

.REST OF TONIGHT...SOUTHEAST WINDS LESS THAN 10 KNOTS INCREASING
TO 5 TO 15 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO
2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ265-270945-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
943 PM EDT FRI JUN 26 2015

.REST OF TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS DIMINISHING TO
LESS THAN 10 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO
2 FEET.
.SATURDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SUNDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS LESS THAN 10 KNOTS VEERING WEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS LESS THAN 10 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ266-270945-
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-
943 PM EDT FRI JUN 26 2015

.REST OF TONIGHT...SOUTH WINDS LESS THAN 10 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS. PATCHY FOG. WAVES
CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST LESS THAN
10 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS LESS THAN 10 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS. WAVES CALM TO
2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST. WAVES
CALM TO 2 FEET.

$$

LSZ267-270945-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
943 PM EDT FRI JUN 26 2015

.REST OF TONIGHT...NORTH WINDS LESS THAN 10 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS LESS THAN 10 KNOTS. WAVES CALM
TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS LESS THAN 10 KNOTS BACKING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...SOUTH WINDS LESS THAN 10 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. WAVES
CALM TO 2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-270945-
MAFOR 2703/
SUPERIOR WEST 12200 12400 12500 12400. PATCHY FOG. WAVES 1 FOOT OR
LESS.

SUPERIOR NORTH CENTRAL 12300 15400. PATCHY FOG. WAVES 1 FOOT OR
LESS.

SUPERIOR SOUTH CENTRAL 16300. PATCHY FOG OVERNIGHT AND SATURDAY
MORNING. WAVES 1 FOOT OR LESS.

SUPERIOR EAST 12700 12100 13800 11200. PATCHY FOG OVERNIGHT AND SATURDAY
MORNING. WAVES 1 FOOT OR LESS.

$$

RJT



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