Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 030203
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1003 PM EDT SUN AUG 2 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.5 INCH LOW PRESSURE OVER JAMES BAY WILL SWING A
TROUGH OF 29.6 INCHES ACROSS LAKE SUPERIOR AND THE UPPER GREAT LAKES
TONIGHT. A COLD FRONT WILL THEN PUSH INTO THE REGION ON MONDAY AHEAD
OF A 30.2 INCH HIGH PRESSURE RIDGE BUILDING INTO THE REGION FROM
CENTRAL CANADA. THIS HIGH WILL REACH THE UPPER GREAT LAKES BY TUESDAY
AS THE HUDSON BAY LOW DRIFTS EASTWARD ACROSS QUEBEC. THE RIDGE WILL
REMAIN OVER THE UPPER GREAT LAKES THROUGH FRIDAY.

LSZ162-031000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1003 PM EDT SUN AUG 2 2015

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED SHOWERS. WAVES CALM
TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS LESS THAN 10 KNOTS VEERING WEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-031000-
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-
1003 PM EDT SUN AUG 2 2015

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST
AFTER MIDNIGHT. ISOLATED SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS. 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...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST LESS
THAN 10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. WAVES
CALM TO 2 FEET.

$$

LSZ264-031000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1003 PM EDT SUN AUG 2 2015

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST
AFTER MIDNIGHT. ISOLATED RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED RAIN SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.

$$

LSZ265-031000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1003 PM EDT SUN AUG 2 2015

.REST OF TONIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-031000-
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-
1003 PM EDT SUN AUG 2 2015

.REST OF TONIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST. WAVES CALM
TO 2 FEET.

$$

LSZ267-031000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1003 PM EDT SUN AUG 2 2015

.REST OF TONIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST. WAVES
CALM TO 2 FEET.

$$
LSZ261-031000-
MAFOR 0303/
SUPERIOR WEST 11720 14620 11620 12610. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 12710 13610 13620. ISOLATED RAIN SHOWERS. WAVES
1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 11610 11710 11610 14620 11610. WAVES 3 FEET
OR LESS.

SUPERIOR EAST 12610 11710 14610 11610. PATCHY FOG OVERNIGHT.
WAVES 3 FEET OR LESS.

$$

MZ


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