Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 161329
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
929 AM EDT SAT MAY 16 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.1 INCH HIGH PRESSURE OVER THE UPPER GREAT LAKES WILL
SLOWLY MOVE EAST THROUGH SUNDAY AS 29.5 INCH LOW PRESSURE ORGANIZES
OVER THE CENTRAL AND NORTHERN PLAINS. THIS LOW WILL REACH NORTHERN
MINNESOTA SUNDAY EVENING WHILE DEEPENING TO 29.3 INCHES...THEN CROSS
LAKE SUPERIOR MONDAY AFTERNOON AND EVENING AS IT FILLS TO 29.7
INCHES. EXPECT THE LOW TO CROSS QUEBEC TUESDAY INTO WEDNESDAY AS HIGH
PRESSURE OF 30.5 INCHES EXPANDS FROM THE NORTHERN PLAINS TO THE
WESTERN GREAT LAKES.

LSZ162-162130-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
929 AM EDT SAT MAY 16 2015

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO
2 TO 4 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. PATCHY FOG. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON...THEN RAIN SHOWERS LIKELY BY MID AFTERNOON.
A CHANCE OF THUNDERSTORMS. WAVES 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. AREAS OF FOG THROUGH MIDNIGHT. RAIN SHOWERS
LIKELY AND A CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT...THEN A
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO
3 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-162130-
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-
929 AM EDT SAT MAY 16 2015

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO
1 TO 3 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS. PATCHY FOG. A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. PATCHY FOG. A CHANCE OF RAIN SHOWERS THROUGH
EARLY AFTERNOON...THEN RAIN SHOWERS LIKELY BY MID AFTERNOON. A
CHANCE OF THUNDERSTORMS. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF
RAIN SHOWERS. A CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. WAVES
SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST BY MID
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A CHANCE OF RAIN
SHOWERS. WAVES 1 TO 3 FEET.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN AND
SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ264-162130-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
929 AM EDT SAT MAY 16 2015

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG. A CHANCE OF
RAIN SHOWERS. A CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES
BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH
AFTER MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO
1 TO 3 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A CHANCE OF RAIN
SHOWERS. WAVES 1 TO 3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES BUILDING
TO 4 TO 7 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO 2
FEET.

$$

LSZ265-162130-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
929 AM EDT SAT MAY 16 2015

.REST OF TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST
10 TO 20 KNOTS BY MID AFTERNOON. PATCHY FOG. WAVES CALM TO
2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. PATCHY FOG. A CHANCE OF RAIN SHOWERS.
A CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES BUILDING TO
2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS THROUGH MIDNIGHT. PATCHY FOG. WAVES SUBSIDING TO
1 TO 3 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO 25 KNOTS
BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS.
WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-162130-
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-
929 AM EDT SAT MAY 16 2015

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG. A SLIGHT
CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS BY MID
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS BECOMING SOUTH
15 TO 25 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES BUILDING TO
3 TO 5 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST BY MID
AFTERNOON. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET...THEN
BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS.
WAVES BUILDING TO 5 TO 8 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. WAVES BUILDING TO 6 TO 9 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO 2
FEET.

$$

LSZ267-162130-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
929 AM EDT SAT MAY 16 2015

.REST OF TODAY...SOUTHWEST WINDS LESS THAN 10 KNOTS BECOMING
NORTHEAST 5 TO 15 KNOTS BY MID AFTERNOON. PATCHY FOG. WAVES CALM
TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG. A SLIGHT
CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS BECOMING SOUTH
15 TO 25 KNOTS AFTER MIDNIGHT. PATCHY FOG. RAIN SHOWERS LIKELY
THROUGH MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO
1 TO 3 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST BY MID
AFTERNOON. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 6 TO
9 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$
LSZ261-162130-
MAFOR 1615/
SUPERIOR WEST 11210 11110 14120 11220 11230. CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS SUNDAY MORNING. WAVES
CALM TO 5 FEET.

SUPERIOR NORTH CENTRAL 11400 11310 11210 11220 12320 11310 11320.
WAVES CALM TO 3 FEET.

SUPERIOR SOUTH CENTRAL 11310 12210 11220 13310 11320. WAVES CALM TO
3 FEET.

SUPERIOR EAST 11400 11200 13210 12310 11330. WAVES CALM TO 3 FEET.

$$

PETRO



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