Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 251412
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1012 AM EDT MON MAY 25 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.7 INCH LOW PRESSURE SYSTEM CENTERED OVER EASTERN
MINNESOTA THIS MORNING WILL MOVE NORTHEAST INTO EASTERN LAKE
SUPERIOR BY THIS EVENING AND WILL MAINTAIN A 29.8 INCH TROUGH OVER
LAKE SUPERIOR TONIGHT INTO WEDNESDAY. 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 MOVE A 29.9 INCH TROUGH OF LOW PRESSURE ACROSS LAKE SUPERIOR ON
FRIDAY.

LSZ162-252215-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1012 AM EDT MON MAY 25 2015

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG.
RAIN SHOWERS. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS AFTER MIDNIGHT. SCATTERED RAIN SHOWERS THROUGH MIDNIGHT.
AREAS OF FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS LESS THAN 10 KNOTS BACKING NORTHEAST BY
MID AFTERNOON. AREAS OF FOG. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH
AFTER MIDNIGHT. AREAS OF FOG. A SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. 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 BACKING NORTHEAST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ263-252215-
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-
1012 AM EDT MON MAY 25 2015

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

$$

LSZ264-252215-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1012 AM EDT MON MAY 25 2015

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

$$

LSZ265-252215-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1012 AM EDT MON MAY 25 2015

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

$$

LSZ266-252215-
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-
1012 AM EDT MON MAY 25 2015

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

$$

LSZ267-252215-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1012 AM EDT MON MAY 25 2015

.REST OF TODAY...EAST WINDS 15 TO 25 KNOTS VEERING SOUTHEAST BY
MID AFTERNOON. AREAS OF FOG. RAIN SHOWERS. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. AREAS OF FOG. ISOLATED
RAIN SHOWERS. WAVES 1 TO 3 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH BY MID
AFTERNOON. AREAS OF FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS BY
MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHEAST 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...NORTHWEST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS
THAN 10 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS. 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...SOUTH WINDS 10 TO 20 KNOTS BACKING NORTH. RAIN SHOWERS
LIKELY...THEN A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 1 TO
3 FEET.

$$
LSZ261-252215-
MAFOR 2515/
SUPERIOR WEST 11136 11126 11116 11803 11703 13603. AREAS OF FOG
TODAY. SCATTERED SHOWERS AFTER MIDNIGHT TONIGHT. WAVES 3 TO 5 FEET
THIS AFTERNOON. WAVES 1 TO 3 FEET TONIGHT AND TUESDAY MORNING.

SUPERIOR NORTH CENTRAL 12226 11216 11813 11613 11623 11613 11603.
AREAS OF FOG TODAY. SCATTERED SHOWERS AFTER MIDNIGHT TONIGHT. WAVES
1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11226 11316 11513 11613 12623 12613. AREAS OF
FOG TODAY. SCATTERED SHOWERS LATE THIS EVENING. WAVES 1 TO 3 FEET.

SUPERIOR EAST 11226 11326 11426 13523 12613. AREAS OF FOG TODAY.
SCATTERED SHOWERS LATE THIS EVENING. WAVES 2 TO 4 FEET.

$$

JS


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