Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 211909
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
309 PM EDT SUN SEP 21 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.5 INCH LOW PRESSURE SYSTEM OVER SOUTHWESTERN
QUEBEC WILL TRACK EAST INTO THE NEW ENGLAND STATES THROUGH LATE
TONIGHT. 30.2 INCH HIGH PRESSURE OVER THE WESTERN HIGH PLAINS WILL
MOVE INTO THE CENTRAL PLAINS TONIGHT WHILE STRENGTHENING TO 30.3
INCHES. THIS HIGH WILL MOVE INTO THE OHIO RIVER VALLEY MONDAY INTO
MONDAY NIGHT...AND THEN INTO THE LOWER GREAT LAKES ON
TUESDAY...WHILE KEEPING A RIDGE OF 30.1 INCHES OVER LAKE SUPERIOR.
THIS HIGH PRESSURE SYSTEM WILL SHIFT OVER NEW ENGLAND ON
WEDNESDAY...AND REMAIN NEARLY STATIONARY THROUGH FRIDAY WHILE
STRENGTHENING FURTHER TO 30.6 INCHES. THIS WILL KEEP LAKE SUPERIOR
UNDER A RIDGE AVERAGING 30.3 INCHES THROUGH THE SAME TIME PERIOD.

LSZ162-220315-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
309 PM EDT SUN SEP 21 2014 /209 PM CDT SUN SEP 21 2014/

.LATE THIS AFTERNOON...SOUTH WINDS 5 TO 15 KNOTS. WAVES 1 TO
3 FEET SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-220315-
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-
309 PM EDT SUN SEP 21 2014

.LATE THIS AFTERNOON...WEST WINDS 5 TO 15 KNOTS. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-220315-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
309 PM EDT SUN SEP 21 2014

.LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES 3 TO
5 FEET SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS BECOMING SOUTH 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ265-220315-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
309 PM EDT SUN SEP 21 2014

.LATE THIS AFTERNOON...NORTH WINDS 15 TO 25 KNOTS. WAVES 4 TO
7 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES
CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-220315-
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-
309 PM EDT SUN SEP 21 2014

.LATE THIS AFTERNOON...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES 4 TO
7 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...THEN
BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS LESS THAN 10 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
WAVES CALM TO 2 FEET.

$$

LSZ267-220315-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
309 PM EDT SUN SEP 21 2014

.LATE THIS AFTERNOON...NORTHWEST WINDS 20 TO 30 KNOTS. WAVES 3 TO
6 FEET BUILDING TO 4 TO 7 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.TUESDAY...WEST WINDS LESS THAN 10 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-220315-
MAFOR 2121/
SUPERIOR WEST 11410 12500 13610 12520. WAVES 4 FEET OR LESS.

SUPERIOR NORTH CENTRAL 11720 11710 11610 11600 12610 11620 11630.
WAVES 4 FEET OR LESS.

SUPERIOR SOUTH CENTRAL 11740 12720 11710 12610 12620. WAVES 5 TO 7
FEET THIS EVENING. WAVES 1 TO 3 FEET OVERNIGHT THROUGH MONDAY.

SUPERIOR EAST 11740 11730 11820 11810 11710 13610. WAVES 2 TO 6 FEET
TONIGHT. WAVES 1 TO 3 FEET MONDAY.

$$

KF




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