Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 261359
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
959 AM EDT TUE MAY 26 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.8 INCH TROUGH WILL REMAIN OVER LAKE SUPERIOR
THROUGH WEDNESDAY. A 29.7 INCH LOW PRESSURE SYSTEM WILL MOVE ALONG
THIS TROUGH AND MOVE THROUGH THE SOUTHERN UPPER PENINSULA OF MICHIGAN
TONIGHT. THIS TROUGH WILL WEAKEN TO 30.0 INCHES WEDNESDAY NIGHT OVER
LAKE SUPERIOR. A 29.8 INCH TROUGH OF LOW PRESSURE WILL DEVELOP IN THE
NORTHERN PLAINS THURSDAY MORNING AND WILL THEN MOVE ACROSS LAKE
SUPERIOR ON FRIDAY. A 30.4 INCH HIGH PRESSURE CENTER WILL BUILD OVER
THE UPPER GREAT LAKES ON SATURDAY.

LSZ162-262200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
959 AM EDT TUE MAY 26 2015

.REST OF TODAY...NORTH WINDS LESS THAN 10 KNOTS VEERING NORTHEAST
BY MID AFTERNOON. AREAS OF FOG. ISOLATED RAIN SHOWERS BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING WEST AFTER MIDNIGHT.
AREAS OF FOG. ISOLATED RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG THROUGH
EARLY AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE
OF THUNDERSTORMS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
LESS THAN 10 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO 20
KNOTS. AREAS OF FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-262200-
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-
959 AM EDT TUE MAY 26 2015

.REST OF TODAY...WEST WINDS LESS THAN 10 KNOTS VEERING NORTHEAST
BY MID AFTERNOON. AREAS OF FOG. ISOLATED RAIN SHOWERS BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. AREAS OF FOG. SCATTERED RAIN SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG THROUGH
EARLY AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE
OF THUNDERSTORMS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO 20 KNOTS.
AREAS OF FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2
FEET.
.SATURDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES
CALM TO 2 FEET.

$$

LSZ264-262200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
959 AM EDT TUE MAY 26 2015

.REST OF TODAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. AREAS OF FOG. ISOLATED RAIN SHOWERS BY MID AFTERNOON.
WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER MIDNIGHT.
AREAS OF FOG. SCATTERED RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH. AREAS OF FOG.
A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3
FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ265-262200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
959 AM EDT TUE MAY 26 2015

.REST OF TODAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY
MID AFTERNOON. AREAS OF FOG. ISOLATED RAIN SHOWERS BY LATE
MORNING. NUMEROUS RAIN SHOWERS BY MID AFTERNOON. WAVES CALM TO
2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. AREAS OF FOG. RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A SLIGHT CHANCE OF
RAIN SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS BY MID AFTERNOON.
WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH. AREAS OF
FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 2 TO 4
FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-262200-
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-
959 AM EDT TUE MAY 26 2015

.REST OF TODAY...NORTH WINDS LESS THAN 10 KNOTS VEERING NORTHEAST
BY MID AFTERNOON. AREAS OF FOG. SCATTERED RAIN SHOWERS BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER MIDNIGHT.
AREAS OF FOG. NUMEROUS 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 BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO 20 KNOTS.
AREAS OF FOG. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-262200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
959 AM EDT TUE MAY 26 2015

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

$$
LSZ261-262200-
MAFOR 2615/
SUPERIOR WEST 11703 11803 12103 11803 11703 11603 11510. ISOLATED
RAIN SHOWERS THIS AFTERNOON AND TONIGHT. WAVES 1 FOOT OR LESS.

SUPERIOR NORTH CENTRAL 11603 11503 11303 11203 11103 11803 11703
11610. SCATTERED RAIN SHOWERS TONIGHT. WAVES 1 FOOT OR LESS.

SUPERIOR SOUTH CENTRAL 11803 11103 12206 11106 11806 11713 11710.
SCATTERED SHOWERS LATE WEDNESDAY MORNING. WAVES 2 FEET OR LESS.

SUPERIOR EAST 11803 11103 11203 12206 11106 11816 11726.
SCATTERED SHOWERS LATE THIS EVENING. PATCHY FOG LATE WEDNESDAY
MORNING. WAVES 1 TO 3 FEET.

$$

JS


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