Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 281946
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
346 PM EDT SAT MAR 28 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...EXPECT A 30.4 INCH HIGH PRESSURE CENTERED OVER SOUTHERN
LAKE MICHIGAN THIS EVENING 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. THIS LOW WILL DEEPEN TO 29.2 INCHES OVER NORTHWESTERN
ONTARIO ON THURSDAY MORNING AND REACH QUEBEC ON LATE THURSDAY NIGHT.

LSZ162-290400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
346 PM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM 2 AM EDT /1 AM CDT/ SUNDAY THROUGH
SUNDAY MORNING...

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

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

$$

LSZ263-290400-
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-
346 PM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM 2 AM EDT SUNDAY THROUGH SUNDAY
MORNING...

.LATE THIS AFTERNOON...SOUTH WINDS 5 TO 15 KNOTS. WAVES 1 TO
3 FEET SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS 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...THEN A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN BY
MID AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET...THEN BUILDING TO
4 TO 7 FEET.
.SUNDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN THROUGH
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES BUILDING TO 5 TO
8 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS
THROUGH EARLY 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...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST. A
CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

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

$$

LSZ264-290400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
346 PM EDT SAT MAR 28 2015

.LATE THIS AFTERNOON...SOUTH WINDS 5 TO 15 KNOTS.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT.
.SUNDAY...SOUTH WINDS 20 TO 30 KNOTS BECOMING WEST GALES TO
35 KNOTS BY LATE AFTERNOON. SNOW THROUGH EARLY AFTERNOON...THEN A
CHANCE OF SNOW BY MID AFTERNOON.
.SUNDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN THROUGH
MIDNIGHT. A SLIGHT CHANCE OF SNOW.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS
THROUGH EARLY AFTERNOON.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS AFTER MIDNIGHT.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS BY MID AFTERNOON.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTH 10 TO
20 KNOTS.

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

$$

LSZ265-290400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
346 PM EDT SAT MAR 28 2015

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

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

$$

LSZ266-290400-
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-
346 PM EDT SAT MAR 28 2015

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

.LATE THIS AFTERNOON...SOUTH WINDS 10 TO 20 KNOTS.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT.
.SUNDAY...SOUTH GALES TO 35 KNOTS VEERING WEST BY MID AFTERNOON.
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 10 TO 20
KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. A CHANCE OF SNOW AFTER MIDNIGHT.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS BY MID AFTERNOON.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS.

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

$$

LSZ267-290400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
346 PM EDT SAT MAR 28 2015

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

.LATE THIS AFTERNOON...SOUTH WINDS 5 TO 15 KNOTS.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT.
.SUNDAY...SOUTH GALES TO 35 KNOTS. SNOW.
.SUNDAY NIGHT...NORTHWEST GALES TO 40 KNOTS. A CHANCE OF SNOW...
POSSIBLY MIXED WITH RAIN THROUGH MIDNIGHT...THEN SNOW LIKELY
AFTER MIDNIGHT.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO 20
KNOTS LATE. A CHANCE OF SNOW SHOWERS.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. A CHANCE OF SNOW AFTER MIDNIGHT.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH BY MID
AFTERNOON.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS. RAIN SHOWERS LIKELY.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS.

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

$$

LSZ261-290400-
MAFOR 2821/
SUPERIOR WEST...GALE WARNING IN EFFECT...11410 11430 11440 12550
11557 11547 11640. WAVES 2 FEET OR LESS BUILDING TO 3 TO 6 FEET
TONIGHT. WAVES 3 TO 7 FEET SUNDAY.

SUPERIOR NORTH CENTRAL 11410 11420 11430 12440 12447 11547. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11310 11320
12430 11440 11450 11457 11547. WAVES 2 FEET OR LESS.

SUPERIOR EAST...GALE WARNING IN EFFECT...11400 11310 12430 11440
11450 11457 11557. CHANCE OF SNOW EARLY SUNDAY AFTERNOON. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

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