Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 290159
GLFLS

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

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.4 INCH HIGH PRESSURE CENTERED OVER THE OHIO VALLEY
TONIGHT WILL REACH THE SOUTH CAROLINA COAST SUNDAY. A 29.4 INCH LOW
PRESSURE SYSTEM OVER THE NORTHERN PLAINS WILL REACH THE UPPER GREAT
LAKES SUNDAY AND THE EASTERN GREAT LAKES MONDAY MORNING. A 30.0 INCH
HIGH PRESSURE RIDGE WILL CROSS THE UPPER GREAT LAKES MONDAY EVENING.
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.


LSZ162-291000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
959 PM EDT SAT MAR 28 2015

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

.REST OF TONIGHT...SOUTH WINDS 20 TO 30 KNOTS BECOMING SOUTHWEST
GALES TO 35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW...POSSIBLY
MIXED WITH RAIN...FREEZING RAIN AND SLEET AFTER MIDNIGHT. WAVES
CALM TO 2 FEET 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.

$$

LSZ263-291000-
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 PM EDT SAT MAR 28 2015

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

.REST OF TONIGHT...SOUTH WINDS 20 TO 30 KNOTS INCREASING TO GALES
TO 35 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET 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.

$$

LSZ264-291000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
959 PM EDT SAT MAR 28 2015

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

.REST OF 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.

$$

LSZ265-291000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
959 PM EDT SAT MAR 28 2015

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

.REST OF TONIGHT...SOUTH WINDS 15 TO 25 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.

$$

LSZ266-291000-
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 PM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM 8 AM EDT SUNDAY THROUGH LATE
SUNDAY NIGHT...

.REST OF 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.

$$

LSZ267-291000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
959 PM EDT SAT MAR 28 2015

...GALE WARNING IN EFFECT FROM 8 AM EDT SUNDAY THROUGH LATE
SUNDAY NIGHT...

.REST OF 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.

$$
LSZ261-291000-
MAFOR 2903/
SUPERIOR WEST...GALE WARNING IN EFFECT...11440 12550 11557 11547
12640 11750. SLIGHT CHANCE OF SNOW...RAIN...LIGHT FREEZING RAIN AND
LIGHT SLEET EARLY SUNDAY MORNING. WAVES 1 TO 2 FEET BUILDING TO 3 TO
7 FEET OVERNIGHT AND SUNDAY.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11430 12440
12447 11547 11650 11750. CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN
SUNDAY EVENING. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...12430 11440
11450 11457 11547 11640 11750. CHANCE OF SNOW AND RAIN SUNDAY
EVENING. WAVES CALM TO 4 FEET SUNDAY EVENING.

SUPERIOR EAST...GALE WARNING IN EFFECT...12430 11440 11450 11457
11557 11547 11650. CHANCE OF SNOW EARLY SUNDAY AFTERNOON. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

PETRO



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