Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 220809
GLFLS

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

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.1 INCH HIGH PRESSURE RIDGE WILL LINGER ALONG THE
EAST COAST TODAY AS 29.6 INCH LOW PRESSURE TRACKS ACROSS THE WEST
HALF OF LAKE SUPERIOR THIS MORNING AND EARLY AFTERNOON. THE LOW
WILL THEN 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

LSZ162-221615-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
409 AM EDT TUE JUL 22 2014 /309 AM CDT TUE JUL 22 2014/

...SEVERE THUNDERSTORM WATCH 429 IN EFFECT UNTIL 8 AM EDT /7 AM
CDT/ THIS MORNING...

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. AREAS OF FOG.
SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE WITH
WIND GUSTS OVER 35 KNOTS AND LARGE HAIL. WAVES CALM TO 2 FEET.
.TODAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. SCATTERED SHOWERS AND THUNDERSTORMS THROUGH EARLY
AFTERNOON. AREAS OF FOG. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...NORTH WINDS LESS THAN 10 KNOTS. WAVES 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.

$$

LSZ263-221615-
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-
409 AM EDT TUE JUL 22 2014

...SEVERE THUNDERSTORM WATCH 429 IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. AREAS OF FOG.
SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE SEVERE WITH
WIND GUSTS OVER 35 KNOTS AND LARGE HAIL. WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 10 TO 20 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. SHOWERS AND THUNDERSTORMS THROUGH EARLY AFTERNOON.
AREAS OF FOG. WAVES BUILDING TO 3 TO 5 FEET...THEN 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.

$$

LSZ264-221615-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
409 AM EDT TUE JUL 22 2014

...SEVERE THUNDERSTORM WATCH 429 IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. AREAS OF FOG.
SCATTERED SHOWERS AND THUNDERSTORMS. SOME THUNDERSTORMS MAY BE
SEVERE WITH WIND GUSTS OVER 35 KNOTS AND LARGE HAIL. WAVES CALM
TO 2 FEET.
.TODAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS BY MID AFTERNOON. AREAS OF FOG. SHOWERS AND
THUNDERSTORMS THROUGH EARLY AFTERNOON. ISOLATED SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 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.

$$

LSZ265-221615-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
409 AM EDT TUE JUL 22 2014

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. AREAS OF FOG.
SCATTERED SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO 25 KNOTS
BY MID AFTERNOON. AREAS OF FOG. SHOWERS AND THUNDERSTORMS THROUGH
EARLY AFTERNOON. SCATTERED SHOWERS AND THUNDERSTORMS BY MID
AFTERNOON. WAVES 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.

$$

LSZ266-221615-
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-
409 AM EDT TUE JUL 22 2014

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. AREAS OF FOG.
ISOLATED SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET BUILDING
TO 1 TO 3 FEET.
.TODAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO 30 KNOTS
BY MID AFTERNOON. AREAS OF FOG. SHOWERS AND THUNDERSTORMS THROUGH
EARLY AFTERNOON. SCATTERED SHOWERS AND THUNDERSTORMS BY MID
AFTERNOON. WAVES 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 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.

$$

LSZ267-221615-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
409 AM EDT TUE JUL 22 2014

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. AREAS OF FOG.
ISOLATED SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO 30 KNOTS
BY MID AFTERNOON. AREAS OF FOG. ISOLATED SHOWERS AND
THUNDERSTORMS THROUGH EARLY AFTERNOON. NUMEROUS SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES 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.

$$

LSZ261-221615-
MAFOR 2209/
SUPERIOR WEST...SEVERE THUNDERSTORM WATCH IN EFFECT...11429 11433
12633 11723 11700 12800. AREAS OF FOG. RAIN SHOWERS AND THUNDERSTORMS
THIS MORNING. AREAS OF FOG THIS EVENING. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET TODAY. WAVES 1 TO 3 FEET SUBSIDING TO 1 FOOT OR LESS
TONIGHT.

SUPERIOR NORTH CENTRAL...SEVERE THUNDERSTORM WATCH IN EFFECT...12429
11433 11643 11743 11730 11820 11810. AREAS OF FOG. SCATTERED RAIN
SHOWERS AND THUNDERSTORMS EARLY THIS MORNING. RAIN SHOWERS AND
THUNDERSTORMS THIS MORNING THEN SCATTERED RAIN SHOWERS AND
THUNDERSTORMS THIS AFTERNOON. AREAS OF FOG IN THE EVENING. ISOLATED
RAIN SHOWERS THIS EVENING. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET
TODAY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET TONIGHT.

SUPERIOR SOUTH CENTRAL 11420 12439 11643 11743 11733 11723 11810.
AREAS OF FOG. ISOLATED RAIN SHOWERS AND THUNDERSTORMS EARLY THIS
MORNING. RAIN SHOWERS AND THUNDERSTORMS THIS MORNING THEN SCATTERED
RAIN SHOWERS AND THUNDERSTORMS THIS AFTERNOON. AREAS OF FOG. SLIGHT
CHANCE OF RAIN SHOWERS WITH ISOLATED THUNDERSTORMS THIS EVENING.
WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET TODAY. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET TONIGHT.

SUPERIOR EAST 11423 11433 11439 11549 11643 12743 11820. AREAS OF
FOG. SCATTERED RAIN SHOWERS AND THUNDERSTORMS THIS MORNING. NUMEROUS
RAIN SHOWERS AND THUNDERSTORMS THIS AFTERNOON. AREAS OF FOG.
SCATTERED THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN SHOWERS
TONIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET TODAY. WAVES 4 TO
6 FEET TONIGHT.

$$

TITUS






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