Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 200805
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
405 AM EDT SUN JUL 20 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.2 INCH HIGH PRESSURE RIDGE WILL LINGER ALONG THE
EAST COAST THROUGH TUESDAY. MEANWHILE...LOW PRESSURE OF 29.6 INCHES
OVER HUDSON BAY WILL CONTINUE LIFTING NORTHEAST TODAY. ANOTHER LOW
PRESSURE OF 29.4 INCHES CURRENTLY OVER SASKATCHEWAN WILL TRACK
EAST...REACHING HUDSON BAY MONDAY AFTERNOON. ALONG THE TRAILING 29.8
INCH LOW PRESSURE TROUGH EXTENDING TO THE SOUTHWEST...LOW PRESSURE
OF 29.7 INCHES WILL DEVELOP OVER THE DAKOTAS MONDAY. THIS NEW LOW
WILL THEN TRACK EAST...PASSING ACROSS THE UPPER GREAT LAKES TUESDAY.
IN ITS WAKE...HIGH PRESSURE OF 30.2 INCHES OVER LAKE WINNIPEG
TUESDAY NIGHT WILL BUILD SOUTHEAST AND SETTLE OVER THE UPPER GREAT
LAKES THURSDAY.

LSZ162-201615-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
405 AM EDT SUN JUL 20 2014 /305 AM CDT SUN JUL 20 2014/

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. AREAS OF FOG. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH EARLY AFTERNOON. AREAS OF FOG.
WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT...THEN SHOWERS AND THUNDERSTORMS LIKELY. WAVES CALM
TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG THROUGH
EARLY AFTERNOON. SHOWERS AND THUNDERSTORMS LIKELY THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST.
WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM TO
2 FEET.

$$

LSZ263-201615-
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-
405 AM EDT SUN JUL 20 2014

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
AFTER MIDNIGHT. AREAS OF FOG. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH EARLY AFTERNOON. AREAS OF FOG. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. AREAS OF FOG. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT...THEN SHOWERS AND THUNDERSTORMS
LIKELY. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG THROUGH
EARLY AFTERNOON. SHOWERS AND THUNDERSTORMS LIKELY THROUGH EARLY
AFTERNOON...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM
TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ264-201615-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
405 AM EDT SUN JUL 20 2014

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

$$

LSZ265-201615-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
405 AM EDT SUN JUL 20 2014

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. ISOLATED
SHOWERS. WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS. ISOLATED SHOWERS THROUGH
EARLY AFTERNOON. PATCHY FOG BY MID AFTERNOON. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES
BUILDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. AREAS OF FOG. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO 20 KNOTS
BY MID AFTERNOON. AREAS OF FOG THROUGH EARLY AFTERNOON. SHOWERS
AND THUNDERSTORMS LIKELY THROUGH EARLY AFTERNOON...THEN A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST.
WAVES CALM TO 2 FEET.

$$

LSZ266-201615-
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-
405 AM EDT SUN JUL 20 2014

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

$$

LSZ267-201615-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
405 AM EDT SUN JUL 20 2014

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. ISOLATED
SHOWERS. WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. ISOLATED SHOWERS THROUGH EARLY AFTERNOON.
PATCHY FOG BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. AREAS OF FOG. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. AREAS OF FOG THROUGH EARLY AFTERNOON. A CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN SHOWERS
AND THUNDERSTORMS LIKELY. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-201615-
MAFOR 2009/
SUPERIOR WEST 12410 11310 11300 11410 12423 11523. PATCHY FOG TODAY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS TONIGHT. WAVES 3 FEET OR
LESS.

SUPERIOR NORTH CENTRAL 13410 12310 13423. PATCHY FOG TODAY. CHANCE
OF SHOWERS AND THUNDERSTORMS LATE TONIGHT. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 13410 14420 11420. PATCHY FOG THIS AFTERNOON
AND TONIGHT. ISOLATED SHOWERS THIS MORNING. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS LATE TONIGHT. WAVES 1 TO 3 FEET.

SUPERIOR EAST 13420 11410 11420 13430. PATCHY FOG THIS AFTERNOON AND
TONIGHT. ISOLATED SHOWERS THIS MORNING. WAVES 1 TO 4 FEET.

$$

ROLFSON




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