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NWS Forecast

FZUS63 KMQT 012010
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
410 PM EDT SAT AUG 1 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

SYNOPSIS
29.2 INCH LOW PRESSURE OVER SOUTHERN HUDSON BAY WILL
DRIFT TO JAMES BAY WHILE FILLING TO 29.5 INCHES BY SUNDAY EVENING.
THIS FEATURE WILL SWING A TROUGH OF 29.7 INCHES ACROSS THE UPPER
GREAT LAKES TONIGHT...WITH A SECOND TROUGH OF THE SAME INTENSITY
PASSING SUNDAY AFTERNOON INTO MONDAY MORNING. A 30.2 INCH HIGH
PRESSURE RIDGE OVER CENTRAL CANADA ON MONDAY WILL SLOWLY BUILD
ACROSS THE UPPER MISSISSIPPI VALLEY AND TOWARD THE UPPER GREAT LAKES
BY TUESDAY AS THE HUDSON BAY LOW DRIFTS EASTWARD ACROSS QUEBEC.
EXPECT THIS RIDGE TO SLOWLY CROSS THE UPPER GREAT LAKES WEDNESDAY
THROUGH THURSDAY AS 29.8 INCH LOW PRESSURE DEVELOPS OVER THE CENTRAL
PLAINS.

LSZ162-020415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
410 PM EDT SAT AUG 1 2015

LATE THIS AFTERNOON
SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.

TONIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.

SUNDAY
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. WAVES CALM TO 2 FEET.

SUNDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

MONDAY
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.

MONDAY NIGHT
WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

TUESDAY
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.

TUESDAY NIGHT
NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

WEDNESDAY
NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES
CALM TO 2 FEET.

THURSDAY
EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.



LSZ263-020415-
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-
410 PM EDT SAT AUG 1 2015

LATE THIS AFTERNOON
SOUTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FEET.

TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.

SUNDAY
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. WAVES CALM TO 2 FEET.

SUNDAY NIGHT
WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

MONDAY
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES SUBSIDING TO
CALM TO 2 FEET.

MONDAY NIGHT
WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

TUESDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.

TUESDAY NIGHT
NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.

WEDNESDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST.
WAVES CALM TO 2 FEET.

THURSDAY
EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.



LSZ264-020415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
410 PM EDT SAT AUG 1 2015

LATE THIS AFTERNOON
SOUTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FEET.

TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS. SCATTERED RAIN SHOWERS
AND ISOLATED THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.

SUNDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. WAVES CALM TO 2 FEET.

SUNDAY NIGHT
WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

MONDAY
WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.

MONDAY NIGHT
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

TUESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

TUESDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

WEDNESDAY
NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST.
WAVES CALM TO 2 FEET.

THURSDAY
EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST. WAVES
CALM TO 2 FEET.



LSZ265-020415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
410 PM EDT SAT AUG 1 2015

LATE THIS AFTERNOON
WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.

TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS. ISOLATED SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.

SUNDAY
WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.

SUNDAY NIGHT
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

MONDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

MONDAY NIGHT
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

TUESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

TUESDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

WEDNESDAY
NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM
TO 2 FEET.

THURSDAY
NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.



LSZ266-020415-
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-
410 PM EDT SAT AUG 1 2015

LATE THIS AFTERNOON
WEST WINDS 5 TO 15 KNOTS. WAVES 2 TO
4 FEET.

TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS. ISOLATED SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.

SUNDAY
SOUTHWEST WINDS LESS THAN 10 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. WAVES CALM TO 2 FEET.

SUNDAY NIGHT
WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

MONDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.

MONDAY NIGHT
WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

TUESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

TUESDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.

WEDNESDAY
NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST. WAVES
CALM TO 2 FEET.

THURSDAY
NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.



LSZ267-020415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
410 PM EDT SAT AUG 1 2015

LATE THIS AFTERNOON
SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.

TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT. ISOLATED SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.

SUNDAY
SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST LESS THAN
10 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.

SUNDAY NIGHT
WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS THROUGH
MIDNIGHT. WAVES CALM TO 2 FEET.

MONDAY
WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.

MONDAY NIGHT
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

TUESDAY
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

TUESDAY NIGHT
NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.

WEDNESDAY
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

THURSDAY
NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.



LSZ261-020415-
MAFOR 0121/
SUPERIOR WEST 11520 13510 13600 11610. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS LATE SUNDAY MORNING. WAVES CALM TO 3
FEET.

SUPERIOR NORTH CENTRAL 12520 11510 14500 11500. SCATTERED SHOWERS
WITH ISOLATED THUNDERSTORMS OVERNIGHT. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS SUNDAY. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 2 FEET TONIGHT. WAVES 1 TO 2 FEET SUNDAY.

SUPERIOR SOUTH CENTRAL 11610 13510 11500 12600 11500. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS SUNDAY. WAVES 2 FEET OR
LESS.

SUPERIOR EAST 11500 12510 12400 13500. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS OVERNIGHT AND SUNDAY. WAVES 1 TO 2 FEET.



RJT