Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 301356
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
956 AM EDT TUE SEP 30 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...HIGH PRESSURE OF 30.2 INCHES OVER NORTHERN ONTARIO WILL
MOVE EAST TO THE CANADIAN MARITIMES BY WEDNESDAY EVENING.
MEANWHILE...LOW PRESSURE OF 29.4 INCHES OVER WESTERN NEBRASKA WILL
LIFT NORTH TO SOUTHERN MANITOBA WEDNESDAY MORNING AND TO HUDSON BAY
THURSDAY MORNING. A 29.7 INCH TROUGH ASSOCIATED WITH THE LOW WILL
MOVE EAST...REACHING LAKE SUPERIOR THURSDAY. A 29.5 INCH LOW PRESSURE
WILL FORM ALONG THIS TROUGH OVER THE UPPER GREAT LAKES THURSDAY
EVENING AND THEN DEEPEN TO 29.1 INCHES AS IT LIFTS NORTH THROUGH
NORTHERN ONTARIO FRIDAY AND TO HUDSON BAY BY SATURDAY MORNING. IN ITS
WAKE...HIGH PRESSURE OF 30.1 INCHES OVER THE WESTERN PLAINS FRIDAY
AFTERNOON WILL SETTLE OVER THE LOWER MISSISSIPPI VALLEY SATURDAY.

LSZ162-302200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
956 AM EDT TUE SEP 30 2014 /856 AM CDT TUE SEP 30 2014/

.REST OF TODAY...EAST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES BUILDING TO
1 TO 3 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ263-302200-
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-
956 AM EDT TUE SEP 30 2014

.REST OF TODAY...EAST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY. WAVES BUILDING TO 1 TO
3 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 4 TO
7 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ264-302200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
956 AM EDT TUE SEP 30 2014

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST BY
MID AFTERNOON. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET...THEN
BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. SHOWERS LIKELY
THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY. WAVES BUILDING TO
1 TO 3 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ265-302200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
956 AM EDT TUE SEP 30 2014

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST BY
MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY. WAVES BUILDING TO 1 TO
3 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.

$$

LSZ266-302200-
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-
956 AM EDT TUE SEP 30 2014

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
3 TO 5 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING
TO 1 TO 3 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 8 TO
11 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET.

$$

LSZ267-302200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
956 AM EDT TUE SEP 30 2014

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS THROUGH MIDNIGHT...THEN SHOWERS LIKELY. WAVES BUILDING TO 1
TO 3 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS
THROUGH EARLY AFTERNOON...THEN SHOWERS LIKELY. WAVES SUBSIDING TO
CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. SHOWERS LIKELY. WAVES BUILDING TO 1 TO 3 FEET...
THEN SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS.
A CHANCE OF RAIN SHOWERS...THEN RAIN SHOWERS LIKELY. WAVES
BUILDING TO 7 TO 10 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 8 TO
11 FEET...THEN SUBSIDING TO 3 TO 5 FEET.

$$
LSZ261-302200-
MAFOR 3015/
SUPERIOR WEST 12220 13230 11320 11420 11320. CHANCE OF RAIN SHOWERS
WEDNESDAY MORNING. WAVES 2 TO 6 FEET.

SUPERIOR NORTH CENTRAL 11110 13210 11310 13320. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 11120 11110 12210 11310 13320. WAVES 1 TO 6
FEET.

SUPERIOR EAST 12120 11110 11100 11200 12310 11320. WAVES 1 TO
4 FEET.

$$

JLB




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