Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 271403
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1003 AM EDT FRI MAR 27 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.4 INCH HIGH PRESSURE CENTERED NEAR THUNDER BAY THIS
MORNING WILL DRIFT SLOWLY SOUTHEAST INTO THE LOWER GREAT LAKES ON
SATURDAY AND THEN INTO THE MID ATLANTIC STATES ON SUNDAY.
MEANWHILE...A 29.3 INCH LOW PRESSURE SYSTEM TRACKING ACROSS ONTARIO
ON SUNDAY WILL DRAG A TROUGH ACROSS THE UPPER GREAT LAKES. IN ITS
WAKE...EXPECT A 30.0 INCH HIGH PRESSURE RIDGE TO PASS ACROSS THE
UPPER GREAT LAKES ON MONDAY. ANOTHER 29.7 INCH LOW PRESSURE WILL THEN
TRACK SOUTHEASTWARD ACROSS THE GREAT LAKES REGION MONDAY NIGHT
THROUGH TUESDAY.

LSZ162-272215-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1003 AM EDT FRI MAR 27 2015

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY
MID AFTERNOON. ISOLATED SNOW SHOWERS BY LATE MORNING. WAVES CALM
TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW AFTER MIDNIGHT.
WAVES BUILDING TO 4 TO 7 FEET.
.SUNDAY...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST BY MID
AFTERNOON. SNOW...POSSIBLY MIXED WITH RAIN THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH. WAVES CALM TO
2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM TO
2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ263-272215-
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-
1003 AM EDT FRI MAR 27 2015

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY
MID AFTERNOON. ISOLATED SNOW SHOWERS BY LATE MORNING. WAVES CALM
TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 4 TO 7 FEET.
.SUNDAY...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO
30 KNOTS BY MID AFTERNOON. SNOW LIKELY THROUGH EARLY AFTERNOON.
WAVES BUILDING TO 4 TO 8 FEET.
.SUNDAY NIGHT...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING EAST. A CHANCE OF
SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. WAVES
CALM TO 2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ264-272215-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1003 AM EDT FRI MAR 27 2015

.REST OF TODAY...NORTH WINDS 5 TO 15 KNOTS BECOMING WEST LESS
THAN 10 KNOTS BY MID AFTERNOON.
.TONIGHT...SOUTHWEST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS AFTER MIDNIGHT.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW AFTER MIDNIGHT.
.SUNDAY...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO
30 KNOTS BY MID AFTERNOON. SNOW LIKELY...THEN A CHANCE OF SNOW BY
MID AFTERNOON.
.SUNDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING WEST.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ265-272215-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1003 AM EDT FRI MAR 27 2015

.REST OF TODAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST BY MID
AFTERNOON. SNOW LIKELY...THEN A CHANCE OF SNOW BY MID AFTERNOON.
WAVES BUILDING TO 3 TO 6 FEET.
.SUNDAY NIGHT...WEST GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO
2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS. A CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING WEST. WAVES CALM TO
2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ266-272215-
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-
1003 AM EDT FRI MAR 27 2015

.REST OF TODAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST LESS THAN
10 KNOTS AFTER MIDNIGHT.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
.SUNDAY...SOUTH GALES TO 35 KNOTS BECOMING WEST 20 TO 30 KNOTS BY
MID AFTERNOON. SNOW LIKELY...THEN A CHANCE OF SNOW BY MID AFTERNOON.
.SUNDAY NIGHT...WEST GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. A CHANCE OF SNOW.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ267-272215-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1003 AM EDT FRI MAR 27 2015

.REST OF TODAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY
MID AFTERNOON.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT.
.SUNDAY...SOUTH GALES TO 35 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. SNOW LIKELY.
.SUNDAY NIGHT...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. A CHANCE OF SNOW.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST. A CHANCE
OF SNOW.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$
LSZ261-272215-
MAFOR 2715/
SUPERIOR WEST 11110 11200 11300 13400 12500. WAVES 2 FEET OR
LESS.

SUPERIOR NORTH CENTRAL 11800 12600 14500 11510. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL 12810 11800 11100 12400 12500. WAVES 2
FEET OR LESS.

SUPERIOR EAST 11810 12710 13700 11600 11500. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

$$

JS


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