Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 100811
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
411 AM EDT THU APR 10 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE OF 28.8 INCHES OVER FAR NORTHERN ONTARIO
WILL DEEPEN TO 28.7 INCHES AS IT MOVES OVER JAMES BAY TODAY. AN
ASSOCIATED LOW PRESSURE TROUGH OF 29.4 INCHES IS OVER CENTRAL LAKE
SUPERIOR EARLY THIS MORNING AND WILL MOVE EAST OF LAKE SUPERIOR
SHORTLY AFTER DAYBREAK TODAY. A SECONDARY TROUGH OF 29.5 INCHES WILL
MOVE ACROSS NORTHERN LAKE SUPERIOR THIS AFTERNOON. IN ITS WAKE...HIGH
PRESSURE OF 30.0 INCHES WILL SHIFT FROM THE PLAINS STATES TODAY TO
THE OHIO VALLEY FRIDAY. 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.

LSZ162-101615-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
411 AM EDT THU APR 10 2014 /311 AM CDT THU APR 10 2014/

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

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

$$

LSZ263-101615-
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-
411 AM EDT THU APR 10 2014

.EARLY THIS MORNING...WEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE
OF RAIN SHOWERS. WAVES 2 TO 4 FEET.
.TODAY...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS POSSIBLE AROUND MID DAY. WAVES BUILDING TO 3 TO 6 FEET...THEN
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 INCREASING TO 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 BECOMING NORTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. RAIN AND SNOW LIKELY BY MID AFTERNOON.
WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF
RAIN THROUGH MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET...THEN
BUILDING TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

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

$$

LSZ264-101615-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
411 AM EDT THU APR 10 2014

.EARLY THIS MORNING...WEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.TODAY...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS...ESPECIALLY IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4
FEET... THEN SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 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 BECOMING NORTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST BY MID
AFTERNOON. A CHANCE OF RAIN AND SNOW. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH MIDNIGHT. WAVES BUILDING
TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ265-101615-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
411 AM EDT THU APR 10 2014

.EARLY THIS MORNING...WEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE
OF RAIN SHOWERS.
.TODAY...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS...ESPECIALLY IN THE AFTERNOON.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS BY MID AFTERNOON.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. RAIN BY MID
AFTERNOON.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH MIDNIGHT.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.

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

$$

LSZ266-101615-
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-
411 AM EDT THU APR 10 2014

.EARLY THIS MORNING...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS.
.TODAY...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS...ESPECIALLY IN THE AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH MID MORNING.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS BY MID AFTERNOON.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS BY MID AFTERNOON. RAIN LIKELY BY MID AFTERNOON.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.

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

$$

LSZ267-101615-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
411 AM EDT THU APR 10 2014

.EARLY THIS MORNING...SOUTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF
RAIN SHOWERS.
.TODAY...WEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS THROUGH MID AFTERNOON.
.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...SOUTH WINDS 10 TO 20 KNOTS BACKING NORTH AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH MIDNIGHT.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN THROUGH
EARLY AFTERNOON. RAIN LIKELY BY MID AFTERNOON.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. RAIN LIKELY THROUGH
MIDNIGHT.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.

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

$$

LSZ261-101615-
MAFOR 1009/
SUPERIOR WEST 11630 14640 11620 11610 11500. SLIGHT CHANCE OF RAIN
SHOWERS OVERNIGHT. WAVES 1 TO 4 FEET TODAY SUBSIDING TO 1 FOOT OR
LESS TONIGHT. WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR NORTH CENTRAL 12640 12640 19650 11640 11630 11610 11600.
SLIGHT CHANCE OF RAIN SHOWERS THIS MORNING. WAVES 1 FOOT OR LESS.
WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR SOUTH CENTRAL 13640 12640 19650 11630 11610 11600. CHANCE OF
RAIN SHOWERS THIS MORNING. WAVES OMITTED FOR MOSTLY ICE COVERED
AREAS.

SUPERIOR EAST 15640 11620 11610. CHANCE OF RAIN SHOWERS THIS
MORNING. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

SRF







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