Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 270209
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1009 PM EDT MON SEP 26 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...29.4 INCH LOW PRESSURE JUST NORTH OF LAKE SUPERIOR WILL
DRIFT SOUTHWARD ACROSS THE EAST HALF OF LAKE SUPERIOR TUESDAY...AND
CENTRAL UPPER MICHIGAN TUESDAY EVENING. THE LOW WILL THEN WEAKEN TO
29.9 INCHES THROUGH WEDNESDAY AFTERNOON AS IT MOVES SOUTHWARD TO THE
UPPER OHIO VALLEY. A HIGH PRESSURE RIDGE OF 30.4 INCHES WILL THEN
BUILD ACROSS THE UPPER MISSISSIPPI VALLEY THURSDAY THROUGH SATURDAY
WHILE THE LOW MEANDERS AROUND THE UPPER OHIO VALLEY AND LOWER GREAT
LAKES.

LSZ162-271015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1009 PM EDT MON SEP 26 2016 /909 PM CDT MON SEP 26 2016/

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.REST OF TONIGHT...WEST GALES TO 35 KNOTS. SCATTERED SHOWERS. WAVES
4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SHOWERS.
WAVES BUILDING TO 6 TO 9 FEET.
.WEDNESDAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-271015-
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-
1009 PM EDT MON SEP 26 2016

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.REST OF TONIGHT...WEST GALES TO 35 KNOTS. NUMEROUS SHOWERS. WAVES 8
TO 11 FEET SUBSIDING TO 6 TO 9 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH BY MID
AFTERNOON. SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 6 FEET...THEN
BUILDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHEAST AFTER
MIDNIGHT. A FEW GALE FORCE GUSTS TO 35 KNOTS. SHOWERS LIKELY THROUGH
MIDNIGHT...THEN A CHANCE OF SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS. WAVES BUILDING TO 6 TO 10 FEET.
.WEDNESDAY...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS
THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
CALM TO 2 FEET.

$$

LSZ264-271015-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1009 PM EDT MON SEP 26 2016

...GALE WARNING IN EFFECT UNTIL 5 AM EDT TUESDAY...

.REST OF TONIGHT...WEST GALES TO 35 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS LATE. NUMEROUS SHOWERS. WAVES 7 TO 11 FEET...THEN
SUBSIDING TO 5 TO 8 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH BY MID
AFTERNOON. SHOWERS LIKELY. A SLIGHT CHANCE OF THUNDERSTORMS BY
MID AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET...THEN BUILDING TO
4 TO 7 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE
GUSTS TO 35 KNOTS. SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS. WAVES
BUILDING TO 5 TO 9 FEET.
.WEDNESDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
CALM TO 2 FEET.

$$

LSZ265-271015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1009 PM EDT MON SEP 26 2016

...GALE WARNING IN EFFECT UNTIL 5 AM EDT TUESDAY...

.REST OF TONIGHT...WEST GALES TO 40 KNOTS DIMINISHING TO 20 TO 30
KNOTS LATE. NUMEROUS SHOWERS. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 6
FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS BY MID AFTERNOON. SHOWERS LIKELY. A SLIGHT CHANCE OF
THUNDERSTORMS BY MID AFTERNOON. A SLIGHT CHANCE OF WATERSPOUTS BY
MID AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF WATERSPOUTS
THROUGH MIDNIGHT. SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO
3 TO 6 FEET.
.WEDNESDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING
TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST. WAVES CALM
TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
CALM TO 2 FEET.

$$

LSZ266-271015-
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-
1009 PM EDT MON SEP 26 2016

...GALE WARNING IN EFFECT UNTIL 5 AM EDT TUESDAY...

.REST OF TONIGHT...WEST GALES TO 40 KNOTS DIMINISHING TO 20 TO 30
KNOTS LATE. PERIODS OF SHOWERS. ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. WAVES 7 TO 11 FEET...THEN SUBSIDING TO 4 TO 7 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF WATERSPOUTS.
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES SUBSIDING
TO 3 TO 6 FEET.
.TUESDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF
WATERSPOUTS THROUGH MIDNIGHT. SHOWERS LIKELY THROUGH MIDNIGHT...THEN
A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH
EARLY AFTERNOON. WAVES 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
CALM TO 2 FEET.

$$

LSZ267-271015-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1009 PM EDT MON SEP 26 2016

...GALE WARNING IN EFFECT UNTIL 5 AM EDT TUESDAY...

.REST OF TONIGHT...SOUTHWEST GALES TO 35 KNOTS DIMINISHING TO
20 TO 30 KNOTS LATE. PERIODS OF SHOWERS. ISOLATED THUNDERSTORMS
AFTER MIDNIGHT. WAVES 7 TO 10 FEET SUBSIDING TO 4 TO 7 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF WATERSPOUTS.
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES SUBSIDING
TO 2 TO 4 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST
15 TO 25 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
CALM TO 2 FEET.

$$
LSZ261-271015-
MAFOR 2703/
SUPERIOR WEST...GALE WARNING IN EFFECT...11656 13750 11746 11740
12840. SCATTERED SHOWERS OVERNIGHT. WAVES 3 TO 8 FEET.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11656 12746
12736 11836 11846 11146. SLIGHT CHANCE OF THUNDERSTORMS LATE
TUESDAY AFTERNOON THROUGH TUESDAY EVENING. WAVES 6 TO 11 FEET.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...12656 12646
11746 11736 11826 11136. SLIGHT CHANCE OF WATERSPOUTS LATE TONIGHT
THROUGH TUESDAY EVENING. SLIGHT CHANCE OF THUNDERSTORMS LATE TUESDAY
AFTERNOON THROUGH TUESDAY EVENING. WAVES 3 TO 8 FEET.

SUPERIOR EAST...GALE WARNING IN EFFECT...11656 12646 12636 11626
11426 11336. SLIGHT CHANCE OF WATERSPOUTS LATE TONIGHT THROUGH
TUESDAY EVENING. ISOLATED THUNDERSTORMS LATE TONIGHT THROUGH TUESDAY
EVENING. WAVES 5 TO 10 FEET OVERNIGHT SUBSIDING TO 2 TO 5 FEET
TUESDAY AND TUESDAY EVENING.

$$

KEC


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