Great Lakes Forecast
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000
FZUS63 KMQT 171959
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
359 PM EDT SUN JUL 17 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A LOW PRESSURE TROUGH AVERAGING 29.7 INCHES WILL TRACK
EASTWARD ACROSS LAKE SUPERIOR THROUGH TONIGHT. IN ITS WAKE...EXPECT
A 30.1 INCH HIGH PRESSURE OVER THE UPPER MISSISSIPPI VALLEY MONDAY
TO DRIFT ACROSS THE GREAT LAKES ON TUESDAY AND THEN THE MID ATLANTIC
STATES ON WEDNESDAY. A 29.6 INCH TROUGH EXTENDING FROM NORTHERN
ALBERTA TO THE NORTHERN HIGH PLAINS WEDNESDAY MORNING WILL GRADUALLY
WEAKEN TO 29.8 INCHES WHILE DRIFTING EASTWARD THROUGH THE END OF THE
WEEK...REACHING THE UPPER GREAT LAKES LATE THURSDAY. THE 29.8 INCH
TROUGH WILL MOVE ACROSS THE UPPER GREAT LAKES ON FRIDAY WHILE A 30.0
INCH HIGH PRESSURE BUILDS INTO SOUTH CENTRAL CANADA.

LSZ162-180400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
359 PM EDT SUN JUL 17 2016 /259 PM CDT SUN JUL 17 2016/

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. SCATTERED
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTH LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. PATCHY
FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.

$$

LSZ263-180400-
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-
359 PM EDT SUN JUL 17 2016

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. SCATTERED
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. ISOLATED SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS
THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS LESS THAN 10 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ264-180400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
359 PM EDT SUN JUL 17 2016

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. SCATTERED
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. ISOLATED
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO
1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES 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 INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. PATCHY FOG. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. PATCHY
FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.

$$

LSZ265-180400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
359 PM EDT SUN JUL 17 2016

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. SCATTERED
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST 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. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS.
PATCHY FOG. A CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS. WAVES
CALM TO 2 FEET.

$$

LSZ266-180400-
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-
359 PM EDT SUN JUL 17 2016

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. PATCHY FOG.
SCATTERED SHOWERS. WAVES 3 TO 5 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS THROUGH MIDNIGHT. PATCHY FOG. WAVES SUBSIDING TO
2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. WAVES 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 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. PATCHY
FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.

$$

LSZ267-180400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
359 PM EDT SUN JUL 17 2016

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. PATCHY FOG.
SCATTERED SHOWERS. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. SCATTERED SHOWERS THROUGH MIDNIGHT. PATCHY FOG. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST LESS
THAN 10 KNOTS BY MID AFTERNOON. WAVES 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. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO
CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. PATCHY
FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST.
PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.

$$

LSZ261-180400-
MAFOR 1721/
SUPERIOR WEST 13620 11720 11710 11600 11500 11510. PATCHY FOG
THROUGH THE EARLY OVERNIGHT. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS THROUGH EARLY EVENING. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 11520 12620 12720 11710 11600 11610.
PATCHY FOG THROUGH EARLY MONDAY MORNING. SCATTERED SHOWERS WITH
ISOLATED THUNDERSTORMS THIS EVENING. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11520 11610 12620 12720 12700. SCATTERED
SHOWERS WITH ISOLATED THUNDERSTORMS THIS EVENING. WAVES 1 TO 4 FEET.

SUPERIOR EAST 11430 11520 12620 13720 11610. PATCHY FOG THIS
EVENING THROUGH MID MONDAY MORNING. SCATTERED SHOWERS THIS EVENING.
WAVES 2 TO 5 FEET.

$$

JS



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