Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 110155
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
955 PM EDT WED SEP 10 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.4 INCH LOW PRESSURE NEAR THE STRAITS OF MACKINAC
LATE THIS EVENING WILL REACH SOUTHWEST QUEBEC THURSDAY MORNING.
MEANWHILE...A 30.6 INCH HIGH PRESSURE CENTER WILL BUILD OVER MONTANA
WITH A RIDGE EXTENDING EASTWARD TOWARD THE UPPER GREAT LAKES BY
THURSDAY EVENING. AS THE HIGH CENTER MOVES INTO THE CENTRAL PLAINS
FRIDAY AND THE MID MISSISSIPPI RIVER VALLEY SATURDAY...A LOW PRESSURE
TROUGH AVERAGING 30.2 INCHES WILL MOVE INTO THE EASTERN GREAT LAKES.
AFTER THE TROUGH MOVES 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. AS THE HIGH
MOVES OVER NEW ENGLAND ON MONDAY...A 30.0 INCH TROUGH WILL CROSS THE
NORTHERN GREAT LAKES.

LSZ162-111000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
955 PM EDT WED SEP 10 2014 /855 PM CDT WED SEP 10 2014/

.REST OF TONIGHT...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS
TO 35 KNOTS THROUGH MIDNIGHT. ISOLATED RAIN SHOWERS ENDING AFTER
MIDNIGHT. WAVES 11 TO 15 FEET SUBSIDING TO 8 TO 11 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO 2
FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. A CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-111000-
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-
955 PM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING...

.REST OF TONIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS BY MIDNIGHT. ISOLATED RAIN SHOWERS. WAVES 12 TO
17 FEET SUBSIDING TO 8 TO 11 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. ISOLATED RAIN SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.

$$

LSZ264-111000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
955 PM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT UNTIL 4 AM EDT THURSDAY...

.REST OF TONIGHT...NORTH GALES TO 40 KNOTS DIMINISHING TO 35 KNOTS
AFTER MIDNIGHT. ISOLATED RAIN SHOWERS. WAVES 12 TO 17 FEET SUBSIDING
TO 8 TO 11 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. ISOLATED SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS THAN
10 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.

$$

LSZ265-111000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
955 PM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT UNTIL 5 AM EDT THURSDAY...

.REST OF TONIGHT...NORTH GALES TO 40 KNOTS DIMINISHING TO 35 KNOTS
AFTER MIDNIGHT. SCATTERED RAIN SHOWERS. WAVES 15 TO 20 FEET
SUBSIDING TO 10 TO 14 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. ISOLATED SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS LESS THAN 10 KNOTS VEERING EAST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-111000-
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-
955 PM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT UNTIL 5 AM EDT THURSDAY...

.REST OF TONIGHT...NORTH GALES TO 40 KNOTS DIMINISHING TO 35 KNOTS
AFTER MIDNIGHT. SCATTERED RAIN SHOWERS. WAVES 15 TO 20 FEET
SUBSIDING TO 10 TO 14 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. ISOLATED RAIN SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS LESS THAN 10 KNOTS. A SLIGHT CHANCE OF
SHOWERS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.

$$

LSZ267-111000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
955 PM EDT WED SEP 10 2014

...GALE WARNING IN EFFECT UNTIL 8 AM EDT THURSDAY...

.REST OF TONIGHT...NORTH GALES TO 40 KNOTS DIMINISHING TO 35 KNOTS
AFTER MIDNIGHT. SCATTERED RAIN SHOWERS AFTER MIDNIGHT. WAVES 12 TO
17 FEET SUBSIDING TO 5 TO 8 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS WITH A FEW GALE FORCE GUSTS TO
35 KNOTS DIMINISHING TO 15 TO 25 KNOTS BY EARLY AFTERNOON. ISOLATED
RAIN SHOWERS THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 4 TO 8 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$
LSZ261-111000-
MAFOR 1103/
SUPERIOR WEST 11840 19850 13840 11830 11820 11700 11610. ISOLATED
SHOWERS LATE THIS EVENING. WAVES 11 TO 15 FEET OVERNIGHT SUBSIDING TO
4 TO 6 FEET THURSDAY AND TO 1 TO 3 FEET THURSDAY EVENING.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...12850 12840 12830
12820. SCATTERED SHOWERS OVERNIGHT. ISOLATED SHOWERS THURSDAY
MORNING. WAVES 13 TO 17 FEET OVERNIGHT SUBSIDING TO 5 TO 8 FEET
THURSDAY AND TO 2 TO 4 FEET THURSDAY EVENING.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...12850 13840 12830
11820. SCATTERED SHOWERS OVERNIGHT. ISOLATED SHOWERS THURSDAY
MORNING. WAVES 14 TO 18 FEET OVERNIGHT SUBSIDING TO 5 TO 8 FEET
THURSDAY AND TO 4 TO 6 FEET THURSDAY EVENING.

SUPERIOR EAST...GALE WARNING IN EFFECT...13850 12840 13830. NUMEROUS
SHOWERS LATE THIS EVENING THEN SCATTERED SHOWERS OVERNIGHT. ISOLATED
SHOWERS THURSDAY MORNING. WAVES 11 TO 15 FEET SUBSIDING TO 7 TO 10
FEET OVERNIGHT. WAVES SUBSIDING TO 5 TO 7 FEET THURSDAY AND TO 2 TO
4 FEET THURSDAY EVENING.

$$

KLUBER





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