Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 270147
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
947 PM EDT SUN OCT 26 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK HIGH PRESSURE RIDGE OF 29.9 INCHES ACROSS THE
UPPER GREAT LAKES WILL MOVE TO THE EASTERN SEABOARD BY MONDAY
EVENING. BROAD LOW PRESSURE OF 29.5 INCHES OVER THE NORTHERN HIGH
PLAINS WILL MOVE EASTWARD...CROSSING THE UPPER GREAT LAKES LATE
MONDAY NIGHT INTO TUESDAY. THE LOW WILL THEN DEEPEN TO 29.3 INCHES
WHILE LIFTING TO WESTERN QUEBEC BY WEDNESDAY MORNING. A WEAK 30.1
INCH HIGH PRESSURE RIDGE WILL DRIFT FROM THE NORTHERN PLAINS TO THE
UPPER MISSISSIPPI VALLEY ON WEDNESDAY...AND TO THE UPPER GREAT LAKES
ON THURSDAY. MEANWHILE...WEAK 30.0 INCH LOW PRESSURE WILL MOVE
SOUTHEASTWARD ACROSS THE MIDDLE MISSISSIPPI VALLEY. BY FRIDAY...30.3
INCH HIGH PRESSURE OVER CENTRAL CANADA WILL DROP INTO THE UPPER
MISSISSIPPI VALLEY.

LSZ162-271000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
947 PM EDT SUN OCT 26 2014 /847 PM CDT SUN OCT 26 2014/

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. WAVES CALM TO 2 FEET BUILDING TO 2 TO 4 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO
3 TO 6 FEET.
.TUESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES BUILDING TO 3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ263-271000-
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-
947 PM EDT SUN OCT 26 2014

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS. WAVES CALM TO 2 FEET BUILDING TO 3 TO 5
FEET.
.MONDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS THROUGH EARLY AFTERNOON. WAVES 3 TO 5 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 3 TO
6 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.

$$

LSZ264-271000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
947 PM EDT SUN OCT 26 2014

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 3 TO
5 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET.
.MONDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. RAIN SHOWERS LIKELY. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...NORTHWEST GALES TO 35 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 5 TO 8 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO
7 FEET...THEN SUBSIDING TO 1 TO 3 FEET.

$$

LSZ265-271000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
947 PM EDT SUN OCT 26 2014

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS AFTER MIDNIGHT. WAVES CALM TO 2 FEET
BUILDING TO 2 TO 4 FEET.
.MONDAY...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING WEST LESS
THAN 10 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. A SLIGHT CHANCE
OF THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO
3 TO 5 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING
TO 4 TO 7 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING
TO 2 TO 4 FEET.

$$

LSZ266-271000-
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-
947 PM EDT SUN OCT 26 2014

.REST OF TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. SCATTERED RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.MONDAY...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO
4 TO 7 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.WEDNESDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS...POSSIBLY
MIXED WITH SNOW. WAVES SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 3 TO 6 FEET.
.FRIDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS.
A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 5 TO 8 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.

$$

LSZ267-271000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
947 PM EDT SUN OCT 26 2014

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. ISOLATED RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.MONDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. RAIN SHOWERS LIKELY. A
CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES BUILDING TO 3 TO
6 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS THROUGH
MIDNIGHT...THEN SHOWERS LIKELY. A CHANCE OF THUNDERSTORMS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. SHOWERS LIKELY THROUGH EARLY AFTERNOON...THEN A
CHANCE OF RAIN SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 6
FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 3 TO 5 FEET.
.FRIDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO
7 FEET...THEN SUBSIDING TO 2 TO 4 FEET.

$$
LSZ261-271000-
MAFOR 2703/
SUPERIOR WEST 11220 12230 11320 11310 12210 11100. SCATTERED SHOWERS
TONIGHT THROUGH MONDAY. ISOLATED THUNDERSTORMS TONIGHT THROUGH MONDAY
MORNING. ISOLATED SHOWERS MONDAY EVENING. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11320 15330 11320. ISOLATED SHOWERS
OVERNIGHT. SCATTERED SHOWERS MONDAY. SLIGHT CHANCE OF THUNDERSTORMS
MONDAY MORNING. ISOLATED SHOWERS MONDAY EVENING. WAVES CALM TO 2
FEET BUILDING TO 2 TO 6 FEET OVERNIGHT.

SUPERIOR SOUTH CENTRAL 11320 12330 12336 11330 11320 11310. ISOLATED
SHOWERS OVERNIGHT. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
MONDAY AND MONDAY EVENING. WAVES 1 TO 5 FEET.

SUPERIOR EAST 11210 11320 12330 12346 12330. CHANCE OF
THUNDERSTORMS MONDAY AFTERNOON. SCATTERED SHOWERS AND THUNDERSTORMS
MONDAY EVENING. WAVES 2 FEET OR LESS OVERNIGHT BUILDING TO 4 TO 7
FEET MONDAY.

$$

KEC





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