Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 281340
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
940 AM EDT SAT MAR 28 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...EXPECT A 30.3 INCH HIGH PRESSURE CENTERED OVER NORTHERN
LOWER MICHIGAN THIS MORNING TO DRIFT SLOWLY SOUTHEAST INTO THE OHIO
RIVER VALLEY TONIGHT AND THEN INTO THE SOUTHERN MID ATLANTIC STATES
ON SUNDAY. MEANWHILE...A 29.3 INCH LOW PRESSURE SYSTEM TRACKING
ACROSS ONTARIO ON SUNDAY WILL DRAG A TROUGH ACROSS LAKE SUPERIOR. IN
ITS WAKE...LOOK FOR A 30.0 INCH HIGH PRESSURE RIDGE TO PASS ACROSS
THE UPPER GREAT LAKES ON MONDAY. ANOTHER 29.7 INCH LOW PRESSURE
SYSTEM WILL THEN TRACK SOUTHEAST ACROSS THE UPPER MIDWEST ON MONDAY
NIGHT AND INTO THE LOWER GREAT LAKES ON TUESDAY. A 30.0 INCH HIGH
PRESSURE RIDGE WILL FOLLOW THIS LOW THROUGH THE WESTERN GREAT LAKES
LATER ON TUESDAY AHEAD OF A 29.5 INCH LOW PRESSURE SYSTEM MOVING
ALONG THE CANADIAN BORDER THAT WILL REACH NORTHERN MINNESOTA LATE ON
WEDNESDAY.

LSZ162-282145-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
940 AM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST GALES TO
35 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES BUILDING TO 4 TO 7 FEET.
.SUNDAY...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST BY MID
AFTERNOON. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN. WAVES
SUBSIDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.

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

$$

LSZ263-282145-
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-
940 AM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES BUILDING TO 4 TO 7 FEET.
.SUNDAY...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO
30 KNOTS BY MID AFTERNOON. SNOW THROUGH EARLY AFTERNOON. A CHANCE
OF RAIN. A CHANCE OF SNOW BY MID AFTERNOON. WAVES SUBSIDING TO
3 TO 5 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN THROUGH
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES BUILDING TO 3 TO
6 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. A
CHANCE OF RAIN. WAVES CALM TO 2 FEET.

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

$$

LSZ264-282145-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
940 AM EDT SAT MAR 28 2015

.REST OF TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS BY MID AFTERNOON.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
.SUNDAY...SOUTH WINDS 20 TO 30 KNOTS BECOMING WEST 20 TO 30 KNOTS BY
MID AFTERNOON. SNOW LIKELY. A CHANCE OF RAIN BY MID AFTERNOON.
.SUNDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN THROUGH MIDNIGHT. A
SLIGHT CHANCE OF SNOW.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A
CHANCE OF RAIN.

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

$$

LSZ265-282145-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
940 AM EDT SAT MAR 28 2015

.REST OF TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 20 TO 30 KNOTS VEERING WEST BY MID
AFTERNOON. SNOW. A CHANCE OF RAIN BY MID AFTERNOON. WAVES CALM TO
2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
THROUGH MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 1 TO 3
FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO
2 FEET.
.TUESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES
CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN. WAVES
CALM TO 2 FEET.

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

$$

LSZ266-282145-
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-
940 AM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT.
.SUNDAY...SOUTH GALES TO 40 KNOTS BECOMING SOUTHWEST GALES TO
35 KNOTS BY MID AFTERNOON. SNOW. A SLIGHT CHANCE OF RAIN BY MID
AFTERNOON.
.SUNDAY NIGHT...NORTHWEST GALES TO 35 KNOTS. A CHANCE OF RAIN
THROUGH MIDNIGHT. A CHANCE OF SNOW.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN.

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

$$

LSZ267-282145-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
940 AM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

.REST OF TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT.
.SUNDAY...SOUTH GALES TO 40 KNOTS. SNOW.
.SUNDAY NIGHT...NORTHWEST GALES TO 35 KNOTS. A SLIGHT CHANCE OF
RAIN THROUGH MIDNIGHT. A CHANCE OF SNOW.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH LESS
THAN 10 KNOTS AFTER MIDNIGHT.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH. A CHANCE OF
SNOW.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN.

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

$$
LSZ261-282145-
MAFOR 2815/
SUPERIOR WEST...GALE WARNING IN EFFECT...11510 11410 11420 11430
11440 12550 11557. WAVES 2 FEET OR LESS THIS AFTERNOON AND TONIGHT.
WAVES BUILDING TO 3 TO 7 FEET TONIGHT AND SUNDAY MORNING.

SUPERIOR NORTH CENTRAL 13520 11420 11440 12440 11447. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11500 11400
11310 11320 12430 11440 11450. CHANCE OF SNOW SUNDAY MORNING.
WAVES 2 FEET OR LESS.

SUPERIOR EAST...GALE WARNING IN EFFECT...13510 11410 11430 12440
11450. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

JS



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