Great Lakes Forecast
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000
FZUS63 KMQT 101948
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
348 PM EDT THU APR 10 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE OF 28.8 INCHES JUST NORTHEAST OF JAMES BAY
WILL MOVE NORTHEASTWARD OVERNIGHT AS AN ASSOCIATED 29.7 INCH TROUGH
TRACKS SOUTHEASTWARD ACROSS LAKE SUPERIOR THROUGH THIS EVENING. HIGH
PRESSURE OF 30.0 INCHES WILL SHIFT FROM THE PLAINS STATES TO THE
OHIO VALLEY THROUGH FRIDAY AND PASS A WEAK 29.9 INCH RIDGE ACROSS
LAKE SUPERIOR TONIGHT. A LOW PRESSURE TROUGH OF 29.8 INCHES WILL
THEN PUSH THROUGH THE UPPER GREAT LAKES LATE FRIDAY BEFORE A HIGH
PRESSURE RIDGE OF 30.1 INCHES MOVES OVER LAKE SUPERIOR EARLY
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 29.4 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.

LSZ162-110400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
348 PM EDT THU APR 10 2014 /248 PM CDT THU APR 10 2014/

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. WAVES 2 TO
4 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS LESS THAN 10 KNOTS BECOMING
NORTHEAST 5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN
AND SNOW SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW...
POSSIBLY MIXED WITH RAIN THROUGH EARLY AFTERNOON...THEN RAIN AND
SNOW LIKELY BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN...POSSIBLY MIXED
WITH SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ263-110400-
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-
348 PM EDT THU APR 10 2014

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. WAVES 3 TO
5 FEET SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...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.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN AND SNOW
THROUGH EARLY AFTERNOON...THEN RAIN...POSSIBLY MIXED WITH SNOW BY
MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN...POSSIBLY MIXED WITH
SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. WAVES
CALM TO 2 FEET.

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

$$

LSZ264-110400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
348 PM EDT THU APR 10 2014

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. WAVES 3 TO
5 FEET SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. RAIN LIKELY BY MID
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN AND
SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHEAST 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.

$$

LSZ265-110400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
348 PM EDT THU APR 10 2014

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE
GUSTS TO 35 KNOTS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID
AFTERNOON.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
WITH POCKETS OF RAIN THROUGH EARLY AFTERNOON...THEN RAIN...
POSSIBLY MIXED WITH SNOW BY MID AFTERNOON.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS.

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

$$

LSZ266-110400-
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-
348 PM EDT THU APR 10 2014

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE
GUSTS TO 35 KNOTS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN THROUGH EARLY AFTERNOON. A
SLIGHT CHANCE OF SNOW. RAIN BY MID AFTERNOON.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON.
.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.

$$

LSZ267-110400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
348 PM EDT THU APR 10 2014

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE
GUSTS TO 35 KNOTS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID
AFTERNOON.
.FRIDAY NIGHT...SOUTHWEST WINDS LESS THAN 10 KNOTS BACKING
SOUTHEAST AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS THROUGH MIDNIGHT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY MID
AFTERNOON. A SLIGHT CHANCE OF SNOW THROUGH EARLY AFTERNOON...THEN
RAIN LIKELY BY MID AFTERNOON.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. RAIN LIKELY THROUGH MIDNIGHT...THEN A
CHANCE OF RAIN AFTER MIDNIGHT.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS.

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

$$

LSZ261-110400-
MAFOR 1021/
SUPERIOR WEST 11640 11620 11610 11600 11500 13510. SLIGHT CHANCE OF
RAIN SHOWERS FRIDAY AFTERNOON. WAVES CALM TO 4 FEET. NOTE...WAVE
HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR NORTH CENTRAL 11640 11630 11620 11610 11500 11510 12520.
SLIGHT CHANCE OF RAIN SHOWERS FRIDAY AFTERNOON. WAVES CALM TO 4
FEET. NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR SOUTH CENTRAL 11640 11630 12610 11600 11500 11400 11500.
NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.


SUPERIOR EAST 12640 11620 11610 12500 11410 11510. NOTE...WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

JS





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