Great Lakes Forecast
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000
FZUS63 KMQT 160133
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
933 PM EDT WED OCT 15 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE OF 29.7 INCHES...CENTERED OVER INDIANA...
WILL DRIFT OVER THE EASTERN GREAT LAKES OVERNIGHT. MEANWHILE...A
HIGH PRESSURE RIDGE OF 30.0 INCHES EXTENDING FROM THE CENTRAL PLAINS
TO NORTHERN ONTARIO WILL CROSS LAKE SUPERIOR. ANOTHER LOW PRESSURE
SYSTEM OF 29.5 INCHES TRACKING EAST ACROSS FAR SOUTH CENTRAL CANADA
ON THURSDAY WILL THEN MERGE WITH THE REMNANT GREAT LAKES LOW ON
FRIDAY AND DEEPEN TO 29.1 INCHES NEAR JAMES BAY. THE LOW WILL REMAIN
NEARLY STATIONARY THROUGH SATURDAY...AND THEN MOVE INTO NORTHERN
QUEBEC SUNDAY. IN ITS WAKE...A HIGH PRESSURE RIDGE OF 30.1 INCHES
BUILDING ACROSS THE PLAINS SATURDAY WILL REACH THE WESTERN GREAT
LAKES EARLY SUNDAY. A 29.8 INCH LOW WILL THEN DEVELOP OVER THE
NORTHERN PLAINS SUNDAY NIGHT AND SHIFT ACROSS THE UPPER GREAT LAKES
MONDAY.

LSZ162-160945-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
933 PM EDT WED OCT 15 2014 /833 PM CDT WED OCT 15 2014/

.REST OF TONIGHT...EAST WINDS LESS THAN 10 KNOTS VEERING
SOUTHEAST AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH
LESS THAN 10 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.FRIDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST. A CHANCE OF
RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.

$$

LSZ263-160945-
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-
933 PM EDT WED OCT 15 2014

.REST OF TONIGHT...EAST WINDS LESS THAN 10 KNOTS BACKING NORTH
AFTER MIDNIGHT. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
LESS THAN 10 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON...THEN RAIN SHOWERS LIKELY BY MID AFTERNOON. WAVES
BUILDING TO 3 TO 6 FEET.
.FRIDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 6 TO 9 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.

$$

LSZ264-160945-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
933 PM EDT WED OCT 15 2014

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON...THEN RAIN SHOWERS LIKELY BY MID AFTERNOON. WAVES
BUILDING TO 4 TO 7 FEET.
.FRIDAY NIGHT...NORTH GALES TO 35 KNOTS. RAIN SHOWERS LIKELY
THROUGH MIDNIGHT...THEN A CHANCE OF RAIN AND SNOW SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 7 TO 11 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 4 TO 7 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.

$$

LSZ265-160945-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
933 PM EDT WED OCT 15 2014

.REST OF TONIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES 2 TO 4 FEET SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS LESS THAN 10 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
LESS THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO
4 TO 7 FEET.
.FRIDAY NIGHT...NORTH GALES TO 35 KNOTS. RAIN SHOWERS LIKELY
THROUGH MIDNIGHT...THEN A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
WAVES BUILDING TO 8 TO 11 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. RAIN SHOWERS LIKELY THROUGH EARLY
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 5 TO
8 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ266-160945-
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-
933 PM EDT WED OCT 15 2014

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. ISOLATED SHOWERS. WAVES 2 TO 4 FEET
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS LESS THAN 10 KNOTS VEERING EAST BY
MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING
NORTHWEST LESS THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET.
.FRIDAY NIGHT...NORTH GALES TO 40 KNOTS. RAIN SHOWERS LIKELY
THROUGH MIDNIGHT...THEN A CHANCE OF RAIN SHOWERS...POSSIBLY MIXED
WITH SNOW AFTER MIDNIGHT. WAVES BUILDING TO 9 TO 12 FEET.
.SATURDAY...NORTH GALES TO 40 KNOTS. SNOW SHOWERS...POSSIBLY
MIXED WITH RAIN THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW
SHOWERS BY MID AFTERNOON. WAVES SUBSIDING TO 6 TO 9 FEET.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.

$$

LSZ267-160945-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
933 PM EDT WED OCT 15 2014

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. ISOLATED SHOWERS. WAVES CALM TO
2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY AFTERNOON.
WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO
1 TO 3 FEET.
.FRIDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY. WAVES BUILDING TO
7 TO 10 FEET.
.SATURDAY...NORTH GALES TO 35 KNOTS. SNOW SHOWERS...POSSIBLY
MIXED WITH RAIN THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW
SHOWERS BY MID AFTERNOON. WAVES SUBSIDING TO 6 TO 9 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$
LSZ261-160945-
MAFOR 1603/
SUPERIOR WEST 11200 11300 12400 11300 11200 12210. WAVES 2 FEET OR
LESS.

SUPERIOR NORTH CENTRAL 12100 12200 13300 11310. WAVES 2 FEET OR
LESS.

SUPERIOR SOUTH CENTRAL 13110 13800 11200 11310. WAVES CALM TO 3
FEET.

SUPERIOR EAST 13110 12100 12800 11500. ISOLATED RAIN SHOWERS
OVERNIGHT. SLIGHT CHANCE OF RAIN SHOWERS THURSDAY MORNING. WAVES
2 FEET OR LESS.

$$

PETRO




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