Great Lakes Forecast
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000
FZUS63 KMQT 100749
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
349 AM EDT WED SEP 10 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...EXPECT A 29.4 INCH LOW PRESSURE OVER SOUTHWEST WISCONSIN
TO MOVE THROUGH NORTHERN LOWER MICHIGAN EARLY THIS EVENING...AND THEN
INTO SOUTHWEST QUEBEC BY DAYBREAK ON THURSDAY WHILE A 30.6 INCH HIGH
PRESSURE CENTER BUILDS OVER MONTANA AND EXTENDS A RIDGE AXIS EAST
TOWARD THE UPPER GREAT LAKES. AS THE HIGH CENTER SINKS SOUTHEAST INTO
CENTRAL PLAINS ON FRIDAY AND INTO THE MID MISSISSIPPI RIVER VALLEY ON
SATURDAY...A LOW PRESSURE TROUGH AVERAGING 30.2 INCHES WILL CROSS THE
LOWER GREAT LAKES TO THE SOUTH OF THE LINGERING RIDGE AXIS ACROSS
LAKE SUPERIOR. AFTER THE TROUGH MOVES NORTHEAST INTO NEW ENGLAND ON
SUNDAY...LOOK FOR THE HIGH TO EXPAND INTO THE LOWER LAKES WHILE A LOW
PRESSURE TROUGH AVERAGING 30.1 INCHES APPROACHES LAKE SUPERIOR FROM
THE NORTHWEST.

LSZ162-101600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
349 AM EDT WED SEP 10 2014 /249 AM CDT WED SEP 10 2014/

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.EARLY THIS MORNING...NORTHEAST GALES TO 35 KNOTS. AREAS OF FOG.
RAIN. WAVES 9 TO 12 FEET BUILDING TO 10 TO 14 FEET.
.TODAY...NORTHEAST GALES TO 40 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. RAIN THROUGH EARLY AFTERNOON...THEN A CHANCE OF RAIN
BY MID AFTERNOON. WAVES BUILDING TO 12 TO 17 FEET.
.TONIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS BY
LATE EVENING. A SLIGHT CHANCE OF RAIN THROUGH MIDNIGHT. WAVES
SUBSIDING TO 8 TO 11 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS LESS THAN 10 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ263-101600-
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-
349 AM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.EARLY THIS MORNING...NORTHEAST GALES TO 35 KNOTS. AREAS OF FOG.
RAIN. WAVES 9 TO 12 FEET BUILDING TO 10 TO 14 FEET.
.TODAY...NORTHEAST GALES TO 45 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. RAIN. WAVES BUILDING TO 12 TO 17 FEET.
.TONIGHT...NORTH GALES TO 40 KNOTS. A CHANCE OF RAIN. WAVES
SUBSIDING TO 8 TO 11 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-101600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
349 AM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.EARLY THIS MORNING...NORTHEAST GALES TO 35 KNOTS. AREAS OF FOG.
RAIN AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 7 TO 10 FEET
BUILDING TO 9 TO 12 FEET.
.TODAY...NORTHEAST GALES TO 45 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. RAIN. WAVES BUILDING TO 12 TO 17 FEET.
.TONIGHT...NORTH GALES TO 40 KNOTS. A CHANCE OF RAIN. WAVES
SUBSIDING TO 8 TO 11 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ265-101600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
349 AM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH
LATE TONIGHT...

.EARLY THIS MORNING...NORTHEAST WINDS 10 TO 20 KNOTS. AREAS OF
FOG. RAIN AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 5 TO
9 FEET.
.TODAY...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A
SLIGHT CHANCE OF THUNDERSTORMS THROUGH EARLY AFTERNOON. RAIN.
WAVES BUILDING TO 12 TO 17 FEET.
.TONIGHT...NORTH GALES TO 40 KNOTS. RAIN THROUGH MIDNIGHT...THEN
A CHANCE OF RAIN AFTER MIDNIGHT. WAVES SUBSIDING TO 10 TO
14 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-101600-
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-
349 AM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH
LATE TONIGHT...

.EARLY THIS MORNING...NORTHEAST WINDS 15 TO 25 KNOTS. AREAS OF
FOG. RAIN AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 7 TO
11 FEET.
.TODAY...NORTHEAST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A
SLIGHT CHANCE OF THUNDERSTORMS THROUGH EARLY AFTERNOON. RAIN.
WAVES BUILDING TO 12 TO 17 FEET.
.TONIGHT...NORTH GALES TO 40 KNOTS. RAIN LIKELY THROUGH
MIDNIGHT...THEN A CHANCE OF RAIN AFTER MIDNIGHT. WAVES SUBSIDING
TO 10 TO 14 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
BY MID AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE MORNING.
A SLIGHT CHANCE OF RAIN SHOWERS THROUGH EARLY AFTERNOON. WAVES
SUBSIDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ267-101600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
349 AM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...

.EARLY THIS MORNING...EAST WINDS 10 TO 20 KNOTS. PATCHY FOG. A
CHANCE OF RAIN AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
.TODAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 20 TO
30 KNOTS BY MID AFTERNOON. AREAS OF FOG THROUGH EARLY AFTERNOON.
A SLIGHT CHANCE OF THUNDERSTORMS THROUGH EARLY AFTERNOON. RAIN.
WAVES BUILDING TO 8 TO 11 FEET.
.TONIGHT...NORTH GALES TO 35 KNOTS. RAIN THROUGH MIDNIGHT...THEN
A CHANCE OF RAIN AFTER MIDNIGHT. WAVES BUILDING TO 10 TO
14 FEET...THEN SUBSIDING TO 6 TO 9 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 5 TO 8 FEET...THEN
BUILDING TO 6 TO 9 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.
WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ261-101600-
MAFOR 1009/
SUPERIOR WEST...GALE WARNING IN EFFECT...11156 13166 11160 12850
11840. AREAS OF FOG THIS MORNING. CHANCE OF RAIN THIS EVENING. WAVES
12 TO 17 FEET.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11146 11156 14166
11860 11850. AREAS OF FOG THIS MORNING. SLIGHT CHANCE OF
THUNDERSTORMS EARLY THIS MORNING. CHANCE OF RAIN TONIGHT. WAVES 12 TO
17 FEET.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11136 13146 11156
12856 11850. AREAS OF FOG THIS MORNING. SLIGHT CHANCE OF
THUNDERSTORMS THIS MORNING. WAVES 5 TO 7 FEET BUILDING TO 10 TO 14
FEET TODAY. WAVES 14 TO 18 FEET TONIGHT.

SUPERIOR EAST...GALE WARNING IN EFFECT...11233 11246 12146 12156
11856 11840. AREAS OF FOG THIS MORNING. CHANCE OF RAIN EARLY THIS
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH EARLY AFTERNOON.
CHANCE OF RAIN OVERNIGHT. WAVES 2 TO 4 FEET BUILDING TO 7 TO 10 FEET
TODAY. WAVES 10 TO 13 FEET TONIGHT.

$$

KF




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