Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 201406
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1006 AM EDT SAT AUG 20 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A LOW PRESSURE TROUGH OF 29.7 INCHES STRETCHING FROM
WESTERN QUEBEC TO WISCONSIN WILL WILL SLIDE TO THE NORTHEAST. A 29.6
INCH LOW OVER CENTRAL WISCONSIN THIS MORNING MOVE ALONG THE
TROUGH...REACHING EASTERN LAKE SUPERIOR THIS EVENING WHILE DEEPENING
TO 29.4 INCHES. THE LOW WILL SHIFT TO NEAR JAMES BAY SUNDAY
MORNING. A 30.1 INCH HIGH PRESSURE OVER THE SOUTHERN PLAINS SUNDAY
MORNING WILL BUILD TO 30.2 INCHES OVER THE OHIO VALLEY MONDAY AND
REACH THE EAST COAST TUESDAY. THIS WILL PLACE A RIDGE AVERAGING 30.0
INCHES ACROSS LAKE SUPERIOR. A LOW PRESSURE OF 29.6 INCHES OVER THE
NORTHERN PLAINS TUESDAY AFTERNOON WILL EDGE EASTWARD THROUGH
WEDNESDAY...WITH A 29.8 INCH TROUGH EXTENDING SOUTHWARD TO THE
CENTRAL PLAINS.

LSZ162-202215-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1006 AM EDT SAT AUG 20 2016 /906 AM CDT SAT AUG 20 2016/

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH BY
MID AFTERNOON. RAIN. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING
TO 1 TO 3 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ263-202215-
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-
1006 AM EDT SAT AUG 20 2016

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS BY MID AFTERNOON. RAIN. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE FORCE WIND GUSTS TO 35
KNOTS ARE POSSIBLE AFTER MIDNIGHT. SHOWERS THROUGH MIDNIGHT...THEN A
CHANCE OF SHOWERS. WAVES BUILDING TO 6 TO 9 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO 20 KNOTS
BY MID AFTERNOON. ISOLATED SHOWERS THROUGH EARLY AFTERNOON. WAVES
SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING
TO 1 TO 3 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-202215-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1006 AM EDT SAT AUG 20 2016

...GALE WARNING IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH
SUNDAY AFTERNOON...

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS BY MID AFTERNOON. RAIN. WAVES CALM TO 2 FEET
BUILDING TO 3 TO 5 FEET.
.TONIGHT...NORTH GALES TO 40 KNOTS. SHOWERS. WAVES BUILDING TO
10 TO 14 FEET.
.SUNDAY...NORTH GALES TO 35 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS BY MID AFTERNOON. ISOLATED SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING
TO 2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-202215-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1006 AM EDT SAT AUG 20 2016

...GALE WARNING IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH
SUNDAY AFTERNOON...

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
20 TO 30 KNOTS BY MID AFTERNOON. RAIN. WAVES CALM TO 2 FEET
BUILDING TO 3 TO 5 FEET.
.TONIGHT...NORTH GALES TO 40 KNOTS. SHOWERS. WAVES BUILDING TO
10 TO 14 FEET.
.SUNDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. SCATTERED SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING
TO CALM TO 2 FEET.

$$

LSZ266-202215-
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-
1006 AM EDT SAT AUG 20 2016

...GALE WARNING IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH
SUNDAY AFTERNOON...

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS BY MID AFTERNOON. RAIN. WAVES CALM TO 2 FEET
BUILDING TO 3 TO 5 FEET.
.TONIGHT...NORTH WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
40 KNOTS AFTER MIDNIGHT. A FEW STORM FORCE GUSTS TO 50 KNOTS ARE
POSSIBLE AFTER MIDNIGHT. SHOWERS...WITH A SLIGHT CHANCE OF
THUNDERSTORMS THROUGH MIDNIGHT. WAVES BUILDING TO 12 TO 17 FEET.
.SUNDAY...NORTH GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS BY MID AFTERNOON. SCATTERED SHOWERS. WAVES SUBSIDING TO
3 TO 5 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.TUESDAY...SOUTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING
TO CALM TO 2 FEET.

$$

LSZ267-202215-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1006 AM EDT SAT AUG 20 2016

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON...

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. RAIN. A SLIGHT CHANCE OF THUNDERSTORMS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING NORTH GALES TO 35
KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. SHOWERS. WAVES BUILDING TO 9 TO 12 FEET.
.SUNDAY...NORTH GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS BY MID AFTERNOON. NUMEROUS SHOWERS THROUGH EARLY
AFTERNOON...THEN ISOLATED SHOWERS BY MID AFTERNOON. WAVES
BUILDING TO 10 TO 14 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...NORTHWEST 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 BACKING SOUTHWEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
2 TO 4 FEET.
.WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING
TO CALM TO 2 FEET.

$$
LSZ261-202215-
MAFOR 2015/
SUPERIOR WEST 11106 11816 11826 11836 13840 11730. CHANCE OF
SHOWERS OVERNIGHT. WAVES WAVES CALM TO 3 FEET THIS AFTERNOON
BUILDING TO 3 TO 7 FEET TONIGHT.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11206 11126
11146 14856 11850. SCATTERED SHOWERS LATE SUNDAY MORNING. WAVES CALM
TO 5 FEET THIS AFTERNOON BUILDING TO 8 TO 12 FEET TONIGHT. WAVES 10
TO 13 FEET SUBSIDING TO 8 TO 11 FEET SUNDAY MORNING.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11126 11136
11146 12856 11866 11766 11750. SCATTERED SHOWERS LATE SUNDAY
MORNING. WAVES CALM TO 4 FEET BUILDING TO 4 TO 7 FEET THIS AFTERNOON
AND 10 TO 15 FEET TONIGHT. WAVES 10 TO 15 FEET SUNDAY MORNING.

SUPERIOR EAST...GALE WARNING IN EFFECT...11116 11126 12136 11146
11856 12866. WAVES CALM TO 3 FEET THIS AFTERNOON BUILDING TO 8 TO 11
FEET TONIGHT. WAVES 11 TO 15 FEET SUNDAY MORNING.

$$

PETRO


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