Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 310759
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
359 AM EDT THU JUL 31 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A LOW PRESSURE TROUGH AVERAGING 30.0 INCHES WILL LINGER
OVER THE UPPER GREAT LAKES TODAY AND TONIGHT...EXTENDING FROM A BROAD
29.8 INCH AREA OF LOW PRESSURE NEAR JAMES BAY. A 30.1 INCH HIGH
PRESSURE WILL BUILD OVER LAKE SUPERIOR ON FRIDAY AND REMAIN THROUGH
SATURDAY. AS THIS HIGH SINKS INTO THE LOWER GREAT LAKES ON SUNDAY...A
LOW PRESSURE TROUGH AVERAGING 30.0 INCHES WILL APPROACH THE UPPER
LAKES. HIGH PRESSURE OF 30.2 INCHES OVER SOUTHERN MANITOBA SUNDAY
EVENING WILL SLOWLY MOVE OVER LAKE SUPERIOR MONDAY EVENING...WHILE
WEAKENING TO 30.1 INCHES.

LSZ162-311600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
359 AM EDT THU JUL 31 2014 /259 AM CDT THU JUL 31 2014/

.EARLY THIS MORNING...NORTHWEST WINDS LESS THAN 10 KNOTS. WAVES
CALM TO 2 FEET.
.TODAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS LESS THAN 10 KNOTS VEERING SOUTH BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST LESS
THAN 10 KNOTS. PATCHY FOG. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST. PATCHY FOG.
WAVES CALM TO 2 FEET.

$$

LSZ263-311600-
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-
359 AM EDT THU JUL 31 2014

.EARLY THIS MORNING...WEST WINDS LESS THAN 10 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING EAST LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. PATCHY FOG BY MID AFTERNOON. WAVES
CALM TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS. PATCHY FOG. WAVES
CALM TO 2 FEET.
.SATURDAY...EAST WINDS LESS THAN 10 KNOTS VEERING SOUTH BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING NORTHEAST. PATCHY
FOG. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. PATCHY FOG.
WAVES CALM TO 2 FEET.

$$

LSZ264-311600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
359 AM EDT THU JUL 31 2014

.EARLY THIS MORNING...WEST WINDS LESS THAN 10 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS LESS THAN 10 KNOTS. PATCHY FOG. WAVES CALM
TO 2 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS
THAN 10 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. PATCHY FOG. WAVES
CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. PATCHY
FOG. WAVES CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BACKING WEST. PATCHY FOG.
WAVES CALM TO 2 FEET.

$$

LSZ265-311600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
359 AM EDT THU JUL 31 2014

.EARLY THIS MORNING...SOUTHWEST WINDS LESS THAN 10 KNOTS. PATCHY
FOG. WAVES CALM TO 2 FEET.
.TODAY...WEST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON.
WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS
THAN 10 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH. PATCHY FOG. A
CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH. PATCHY FOG.
WAVES CALM TO 2 FEET.

$$

LSZ266-311600-
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-
359 AM EDT THU JUL 31 2014

.EARLY THIS MORNING...WEST WINDS LESS THAN 10 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.TONIGHT...WEST WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST LESS
THAN 10 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS BACKING EAST BY
MID AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. PATCHY
FOG. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM
TO 2 FEET.

$$

LSZ267-311600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
359 AM EDT THU JUL 31 2014

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

$$

LSZ261-311600-
MAFOR 3109/
SUPERIOR WEST 12700 11600 13510 11600 11100. WAVES 1 FOOT OR LESS.

SUPERIOR NORTH CENTRAL 12600 11610 11510 11610 11600 11500 11300.
PATCHY FOG. WAVES 2 FEET OR LESS.

SUPERIOR SOUTH CENTRAL 11500 14600 11500 12300. PATCHY FOG TODAY.
WAVES 1 FOOT OR LESS.

SUPERIOR EAST 12600 12500 13600 11400. PATCHY FOG. WAVES 1 FOOT OR
LESS.

$$

SRF





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