Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 221354
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
954 AM EDT TUE JUL 22 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.6 INCH LOW PRESSURE OVER WESTERN LAKE SUPERIOR WILL
REACH WESTERN QUEBEC AT 29.4 INCHES BY WEDNESDAY MORNING. IN ITS
WAKE...HIGH PRESSURE OF 30.2 INCHES OVER LAKE WINNIPEG TONIGHT WILL
BUILD SOUTHEAST AND SETTLE OVER THE UPPER GREAT LAKES BY THURSDAY.
THE HIGH WILL WEAKEN TO 30.1 INCHES AS IT DRIFTS OVER THE GREAT LAKES
REGION FRIDAY INTO SATURDAY WHILE A BROAD 29.7 INCH LOW PRESSURE
TROUGH FORMS OVER THE NORTHERN PLAINS.

LSZ162-222200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
954 AM EDT TUE JUL 22 2014 /854 AM CDT TUE JUL 22 2014/

.REST OF TODAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS BY MID AFTERNOON. SCATTERED SHOWERS AND
THUNDERSTORMS BY LATE MORNING. AREAS OF FOG. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...NORTH WINDS LESS THAN 10 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS LESS THAN 10 KNOTS BECOMING SOUTH
5 TO 15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH. A CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ263-222200-
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-
954 AM EDT TUE JUL 22 2014

.REST OF TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST
BY MID AFTERNOON. AREAS OF FOG. SCATTERED SHOWERS AND
THUNDERSTORMS. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. A CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING NORTHEAST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ264-222200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
954 AM EDT TUE JUL 22 2014

.REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS VEERING NORTHWEST BY
MID AFTERNOON. AREAS OF FOG. NUMEROUS SHOWERS AND THUNDERSTORMS
BECOMING ISOLATED BY MID AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3
TO 6 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. A CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ265-222200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
954 AM EDT TUE JUL 22 2014

.REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST BY MID
AFTERNOON. AREAS OF FOG. NUMEROUS SHOWERS AND THUNDERSTORMS BECOMING
SCATTERED BY MID AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5
FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS THROUGH
MIDNIGHT. AREAS OF FOG. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ266-222200-
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-
954 AM EDT TUE JUL 22 2014

.REST OF TODAY...SOUTH WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS BY MID AFTERNOON. AREAS OF FOG. NUMEROUS SHOWERS AND
THUNDERSTORMS BECOMING SCATTERED BY MID AFTERNOON. WAVES 3 TO 5
FEET SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT. AREAS OF FOG. WAVES BUILDING TO 3 TO 6 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.

$$

LSZ267-222200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
954 AM EDT TUE JUL 22 2014

.REST OF TODAY...SOUTH WINDS 20 TO 30 KNOTS VEERING WEST BY MID
AFTERNOON. AREAS OF FOG. NUMEROUS SHOWERS AND THUNDERSTORMS.
WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH 10 TO
20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. A CHANCE OF SHOWERS. WAVES BUILDING TO 4 TO
7 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM TO
2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$
LSZ261-222200-
MAFOR 2215/
SUPERIOR WEST 11643 11733 11723 11700 13800 11100. SCATTERED RAIN
SHOWERS AND THUNDERSTORMS THIS AFTERNOON. AREAS OF FOG THIS EVENING.
WAVES 2 TO 5 FEET SUBSIDING TO 2 FEET OR LESS TONIGHT.

SUPERIOR NORTH CENTRAL
11449 11643 11743 11730 11820 11810 11700 11600. SCATTERED RAIN
SHOWERS AND THUNDERSTORMS THIS AFTERNOON. AREAS OF FOG AND ISOLATED
RAIN SHOWERS IN THE EVENING. WAVES 1 TO 3 FEET BUILDING TO 3 TO 6
FEET THIS AFTERNOON...THEN SUBSIDING TO CALM TO 3 FEET TONIGHT.

SUPERIOR SOUTH CENTRAL 11449 11533 11743 11733 11723 11810 12710.
SLIGHT CHANCE OF RAIN SHOWERS WITH ISOLATED THUNDERSTORMS THIS
EVENING. PATCHY FOG WEDNESDAY MORNING. WAVES 1 TO 6 FEET.

SUPERIOR EAST 11449 11549 11643 12743 11820 11810 11710. SCATTERED
THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN SHOWERS TONIGHT. PATCHY
FOG WEDNESDAY MORNING. WAVES 2 TO 5 FEET BUILDING TO 5 TO 7 FEET
TONIGHT....THEN SUBSIDING TO 2 TO 4 FEET WEDNESDAY MORNING.

$$

PETRO








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