Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 110745
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
345 AM EDT FRI APR 11 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...HIGH PRESSURE OF 30.0 INCHES IN NORTHERN MISSOURI WILL
MOVE EAST INTO THE OHIO RIVER VALLEY TODAY. MEANWHILE...A 29.8 INCH
LOW JUST TO THE EAST OF LAKE WINNIPEG WILL SHIFT EAST ACROSS NORTHERN
ONTARIO TODAY AND DRAG A 29.9 INCH TROUGH ACROSS THE UPPER GREAT
LAKES LATE THIS AFTERNOON AND TONIGHT. BEHIND THIS TROUGH...A 30.1
INCH HIGH PRESSURE RIDGE WILL NOSE SOUTH FROM CANADA AND OVER LAKE
SUPERIOR BY SATURDAY MORNING. A LOW PRESSURE TROUGH OF 29.7 INCHES
DEVELOPING IN THE PLAINS ON SATURDAY WILL MOVE OVER THE GREAT LAKES
SATURDAY NIGHT AND SUNDAY. LOW PRESSURE OF 29.6 INCHES OVER THE LOWER
MISSISSIPPI RIVER VALLEY ON SUNDAY EVENING WILL DEEPEN TO 29.5 INCHES
AS IT MOVES OVER THE LOWER GREAT LAKES ON MONDAY AFTERNOON. A 30.2
INCH RIDGE EXTENDING FROM 30.4 INCH HIGH PRESSURE OVER SOUTH CENTRAL
CANADA WILL THEN BUILD ACROSS THE UPPER GREAT LAKES ON TUESDAY.

LSZ162-111545-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
345 AM EDT FRI APR 11 2014 /245 AM CDT FRI APR 11 2014/

.EARLY THIS MORNING...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON.
WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. RAIN LIKELY...POSSIBLY MIXED WITH SNOW
THROUGH EARLY AFTERNOON...THEN A CHANCE OF RAIN BY MID AFTERNOON.
WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF RAIN THROUGH MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ263-111545-
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-
345 AM EDT FRI APR 11 2014

.EARLY THIS MORNING...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON.
WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER MIDNIGHT.
A CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. RAIN LIKELY...POSSIBLY
MIXED WITH SNOW. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING
TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN THROUGH MIDNIGHT. A
CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ264-111545-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
345 AM EDT FRI APR 11 2014

.EARLY THIS MORNING...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF RAIN
THROUGH EARLY AFTERNOON. A CHANCE OF SNOW. RAIN LIKELY BY MID
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE
OF RAIN THROUGH MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ265-111545-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
345 AM EDT FRI APR 11 2014

.EARLY THIS MORNING...WEST WINDS 5 TO 15 KNOTS.
.TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING EAST LESS THAN
10 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS
AFTER MIDNIGHT.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW THROUGH EARLY
AFTERNOON...THEN RAIN BY MID AFTERNOON.
.SATURDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. A CHANCE OF RAIN THROUGH MIDNIGHT...THEN A SLIGHT
CHANCE OF SNOW AFTER MIDNIGHT.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS.

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

$$

LSZ266-111545-
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-
345 AM EDT FRI APR 11 2014

.EARLY THIS MORNING...WEST WINDS 5 TO 15 KNOTS.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER MIDNIGHT.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY AFTERNOON...THEN
RAIN LIKELY. A CHANCE OF SNOW.
.SATURDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. A CHANCE OF RAIN...POSSIBLY MIXED WITH SNOW.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS.
.MONDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS.

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

$$

LSZ267-111545-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
345 AM EDT FRI APR 11 2014

.EARLY THIS MORNING...WEST WINDS 5 TO 15 KNOTS.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID
AFTERNOON.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER MIDNIGHT.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY
AFTERNOON...THEN RAIN LIKELY. A SLIGHT CHANCE OF SNOW.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN. A SLIGHT CHANCE OF SNOW AFTER
MIDNIGHT.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS.

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

$$

LSZ261-111545-
MAFOR 1109/
SUPERIOR WEST 12500 12510 11610 11600 11500 11200. SLIGHT CHANCE OF
RAIN SHOWERS THIS AFTERNOON. WAVES 1 FOOT OR LESS. WAVE HEIGHT
FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR NORTH CENTRAL 11610 13510 11620 11610 11700 11100. WAVES 2
FEET OR LESS. WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR SOUTH CENTRAL 11600 11500 11410 11510 12610 11600 11700.
WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 11600 11500 12410 11510 11610 11600 11700. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

SRF







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