Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 292012
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
412 PM EDT WED JUL 29 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.2 INCH LOW PRESSURE OVER FAR NORTHERN ONTARIO
TONIGHT WILL DRIFT OVER HUDSON BAY ON THURSDAY AND REMAIN THERE
THROUGH THE WEEKEND WHILE SLOWLY FILLING TO 29.5 INCHES. EXPECT
TROUGHS AVERAGING 29.7 INCHES...ROTATING AROUND THE HUDSON BAY
LOW...TO CROSS THE UPPER GREAT LAKES TONIGHT...THURSDAY NIGHT...AND
SATURDAY NIGHT INTO SUNDAY MORNING. A 29.9 INCH RIDGE WILL APPROACH
LAKE SUPERIOR ON MONDAY AFTERNOON.

LSZ162-300415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
412 PM EDT WED JUL 29 2015

...GALE WARNING IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS
EVENING...

.LATE THIS AFTERNOON...WEST GALES TO 35 KNOTS. WAVES 6 TO 9 FEET
SUBSIDING TO 4 TO 7 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH. WAVES CALM TO
2 FEET.

$$

LSZ263-300415-
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-
412 PM EDT WED JUL 29 2015

...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.LATE THIS AFTERNOON...WEST GALES TO 35 KNOTS. WAVES 6 TO
10 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO
35 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 4 TO 7 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO
1 TO 3 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST. WAVES CALM
TO 2 FEET.

$$

LSZ264-300415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
412 PM EDT WED JUL 29 2015

...GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING...

.LATE THIS AFTERNOON...SOUTHWEST GALES TO 40 KNOTS. WAVES 6 TO
10 FEET.
.TONIGHT...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
OVERNIGHT. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET.
.THURSDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ265-300415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
412 PM EDT WED JUL 29 2015

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS WITH A FEW GALE
FORCE GUSTS TO 35 KNOTS. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS. WAVES SUBSIDING TO 2 TO 4
FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST. WAVES CALM
TO 2 FEET.

$$

LSZ266-300415-
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-
412 PM EDT WED JUL 29 2015

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. WAVES 5 TO
9 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS...WITH A FEW GALE FORCE GUSTS TO
35 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ267-300415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
412 PM EDT WED JUL 29 2015

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-300415-
MAFOR 2921/
SUPERIOR WEST...GALE WARNING IN EFFECT...11650 13640 12640 11630
11620. WAVES 6 TO 9 FEET SUBSIDING TO 3 TO 6 FEET TONIGHT. WAVES 2 TO
6 FEET THURSDAY.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...12550 14640
12630. WAVES 5 TO 9 FEET SUBSIDING TO 3 TO 6 FEET TONIGHT AND
THURSDAY.

SUPERIOR SOUTH CENTRAL 12640 11630 14640 11630. WAVES 2 TO 5 FEET.

SUPERIOR EAST 12630 12530 14630. WAVES 1 TO 3 FEET BUILDING TO 3
TO 6 FEET TONIGHT AND THURSDAY.

$$

JS


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