Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 161600
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1200 PM EDT THU OCT 16 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.5 INCH LOW PRESSURE WILL MOVE SLOWLY THROUGH
SOUTHEAST ONTARIO TODAY AS A WEAK 29.7 INCH HIGH PRESSURE RIDGE
CROSSES LAKE SUPERIOR. ANOTHER 29.5 INCH LOW IN THE NORTHERN PLAINS
WILL THEN TRACK ACROSS THE UPPER LAKES TONIGHT BEFORE MERGING WITH
THE ONTARIO LOW ON FRIDAY...CAUSING THAT SYSTEM TO DEEPEN TO 29.1
INCHES WHILE IT MOVES TO NEAR JAMES BAY LATE IN THE DAY. AS THIS LOW
DRIFTS ACROSS NORTHERN QUEBEC THROUGH SUNDAY AND WEAKENS TO 29.4
INCHES...EXPECT A 30.3 INCH HIGH PRESSURE OVER SOUTH CENTRAL CANADA
TO DROP SOUTH INTO THE MID MISSISSIPPI RIVER VALLEY. ON MONDAY...
THIS HIGH WILL MOVE INTO THE MID ATLANTIC STATES...ALLOWING A 29.8
INCH LOW PRESSURE SYSTEM TO TRACK SOUTHEAST THROUGH THE UPPER GREAT
LAKES.

LSZ162-170000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1200 PM EDT THU OCT 16 2014 /1100 AM CDT THU OCT 16 2014/

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT /4 PM CDT/ THIS
AFTERNOON...

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WIDESPREAD DENSE FOG. WAVES CALM TO 2
FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES BUILDING
TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY AFTERNOON...
THEN SHOWERS LIKELY. WAVES BUILDING TO 3 TO 5 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...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST. WAVES CALM
TO 2 FEET.

$$

LSZ263-170000-
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-
1200 PM EDT THU OCT 16 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY
NIGHT...

.REST OF TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST
10 TO 20 KNOTS BY MID AFTERNOON. WIDESPREAD DENSE FOG. WAVES CALM TO
2 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. GALE FORCE GUSTS TO 35 KNOTS IN THE AFTERNOON.
SHOWERS LIKELY. WAVES BUILDING TO 5 TO 8 FEET.
.FRIDAY NIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH MIDNIGHT...
THEN A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS. WAVES BUILDING TO 6
TO 9 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.SATURDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-170000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1200 PM EDT THU OCT 16 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY
NIGHT...

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS. WIDESPREAD DENSE FOG.
WAVES CALM TO 2 FEET.
.TONIGHT...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 15 TO 25 KNOTS INCREASING TO GALES TO
40 KNOTS BY MID AFTERNOON. RAIN SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.FRIDAY NIGHT...NORTH GALES TO 40 KNOTS. RAIN SHOWERS THROUGH
MIDNIGHT...THEN A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS.
WAVES BUILDING TO 8 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 3 TO 6 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ265-170000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1200 PM EDT THU OCT 16 2014

...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY
NIGHT...

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2
FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES CALM
TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO GALES TO
35 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON...THEN SHOWERS LIKELY. WAVES BUILDING TO 5 TO 8 FEET.
.FRIDAY NIGHT...NORTH GALES TO 35 KNOTS. RAIN SHOWERS. WAVES
BUILDING TO 8 TO 12 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES
SUBSIDING TO 5 TO 8 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ266-170000-
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-
1200 PM EDT THU OCT 16 2014

...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
MORNING...

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG EARLY
IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS LESS THAN 10 KNOTS BECOMING NORTH 5 TO
15 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 GALES TO
35 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO
5 TO 8 FEET.
.FRIDAY NIGHT...NORTH GALES TO 40 KNOTS. RAIN SHOWERS. A SLIGHT
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 10 TO
14 FEET...THEN SUBSIDING TO 9 TO 12 FEET.
.SATURDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY AFTERNOON. RAIN AND SNOW SHOWERS LIKELY THROUGH EARLY
AFTERNOON...THEN A CHANCE OF RAIN AND SNOW SHOWERS. WAVES SUBSIDING
TO 5 TO 8 FEET.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.

$$

LSZ267-170000-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1200 PM EDT THU OCT 16 2014

...GALE WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
MORNING...

.REST OF TODAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 20 TO
30 KNOTS BY MID AFTERNOON. GALE FORCE GUSTS TO 35 KNOTS LATE. A
CHANCE OF SHOWERS THROUGH EARLY AFTERNOON...THEN SHOWERS LIKELY.
WAVES BUILDING TO 3 TO 5 FEET.
.FRIDAY NIGHT...NORTH GALES TO 35 KNOTS. RAIN SHOWERS. WAVES
BUILDING TO 7 TO 11 FEET.
.SATURDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY AFTERNOON. RAIN AND SNOW SHOWERS LIKELY THROUGH EARLY
AFTERNOON...THEN A CHANCE OF RAIN AND SNOW SHOWERS. WAVES SUBSIDING
TO 5 TO 8 FEET.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTH. A CHANCE OF
RAIN SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 1 TO 3 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.

$$
LSZ261-170000-
MAFOR 1615 AMD/
SUPERIOR WEST...DENSE FOG ADVISORY IN EFFECT...11313 11223 11220
12230 12130 11820. ISOLATED RAIN SHOWERS OVERNIGHT. SCATTERED RAIN
SHOWERS FRIDAY MORNING. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL...DENSE FOG ADVISORY IN EFFECT...12203 13210
12110 11830. ISOLATED RAIN SHOWERS OVERNIGHT. SCATTERED RAIN SHOWERS
FRIDAY MORNING. WAVES CALM TO 2 FEET.

SUPERIOR SOUTH CENTRAL 11105 11200 11210 12310 11210 11100 11810.
SCATTERED RAIN SHOWERS FRIDAY MORNING. WAVES CALM TO 2 FEET.

SUPERIOR EAST 11100 12800 14700 11720. ISOLATED RAIN SHOWERS
OVERNIGHT THROUGH FRIDAY MORNING. WAVES CALM TO 2 FEET.

$$

KEC




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