Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 191324
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
924 AM EDT SAT JUL 19 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.3 INCH HIGH PRESSURE RIDGE WILL LINGER ALONG THE
EAST COAST THROUGH TUESDAY. MEANWHILE...LOW PRESSURE OF 29.4 INCHES
OVER NORTHWESTERN ONTARIO WILL WEAKEN TO 29.6 INCHES AS IT MOVES
NORTHEAST...REACHING HUDSON BAY TONIGHT. A 29.4 INCH LOW PRESSURE
ORGANIZING OVER SASKATCHEWAN TONIGHT WILL TRACK TO HUDSON BAY BY
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 LATE TUESDAY. IN ITS WAKE...HIGH
PRESSURE OF 30.2 INCHES WILL BUILD SOUTHEAST...REACHING THE UPPER
GREAT LAKES THURSDAY MORNING.

LSZ162-192130-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
924 AM EDT SAT JUL 19 2014 /824 AM CDT SAT JUL 19 2014/

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

$$

LSZ263-192130-
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-
924 AM EDT SAT JUL 19 2014

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

$$

LSZ264-192130-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
924 AM EDT SAT JUL 19 2014

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

$$

LSZ265-192130-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
924 AM EDT SAT JUL 19 2014

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. PATCHY FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH. SHOWERS
AND THUNDERSTORMS LIKELY...THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-192130-
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-
924 AM EDT SAT JUL 19 2014

.REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. WAVES SUBSIDING
TO 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS. PATCHY FOG. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS. AREAS OF FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING NORTH. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.

$$

LSZ267-192130-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
924 AM EDT SAT JUL 19 2014

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET
SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...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 1 TO 3 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. WAVES SUBSIDING
TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING NORTH. A CHANCE OF
SHOWERS AND THUNDERSTORMS...THEN SHOWERS AND THUNDERSTORMS
LIKELY. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$
LSZ261-192130-
MAFOR 1915/
SUPERIOR WEST 12420 11410 12420 13410. PATCHY FOG. SLIGHT CHANCE OF
RAIN SHOWERS AND THUNDERSTORMS THIS EVENING. PATCHY FOG TONIGHT AND
SUNDAY MORNING. WAVES 2 FEET OR LESS.

SUPERIOR NORTH CENTRAL 11420 12320 14420 11420. PATCHY FOG THIS
AFTERNOON AND TONIGHT. SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS TONIGHT. PATCHY FOG SUNDAY MORNING. WAVES 1 TO 3 FEET
THIS AFTERNOON BUILDING TO 2 TO 4 FEET TONIGHT. WAVES 1 TO 3 FEET
SUNDAY MORNING.

SUPERIOR SOUTH CENTRAL 11420 11320 12430 14420. SLIGHT CHANCE OF
RAIN SHOWERS AND THUNDERSTORMS TONIGHT AND SUNDAY MORNING WITH PATCHY
FOG. WAVES 1 TO 3 FEET.

SUPERIOR EAST 16420. SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS
OVERNIGHT AND SUNDAY MORNING WITH PATCHY FOG. WAVES 1 TO 4 FEET THIS
AFTERNOON.

$$

JS




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