Great Lakes Forecast
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000
FZUS63 KMQT 280206
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1006 PM EDT SAT MAY 27 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS, WHICH
IS THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVE, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...A LOW PRESSURE OF 29.6 INCHES OVER NORTHERN ONTARIO
TONIGHT WILL REMAIN NEARLY STATIONARY OVER ONTARIO THROUGH
WEDNESDAY MORNING. ON WEDNESDAY MORNING...THE LOW WILL WEAKEN TO
29.7 INCHES TO THE NORTHEAST OF LAKE SUPERIOR...WHILE IT EXITS
INTO QUEBEC. A NARROW SURFACE RIDGE AROUND 30.0 INCHES WILL THEN
MOVE ACROSS THE GREAT LAKES THURSDAY AND FRIDAY.

LSZ162-281015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1006 PM EDT SAT MAY 27 2017 /906 PM CDT SAT MAY 27 2017/

.REST OF TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. ISOLATED RAIN
SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO
2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-281015-
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-
1006 PM EDT SAT MAY 27 2017

.REST OF TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH
AFTER MIDNIGHT. ISOLATED RAIN SHOWERS AFTER MIDNIGHT. WAVES CALM
TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. RAIN SHOWERS LIKELY
THROUGH MIDNIGHT...THEN A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
WAVES BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ264-281015-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1006 PM EDT SAT MAY 27 2017

.REST OF TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES
CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST BY MID
AFTERNOON. SCATTERED RAIN SHOWERS. ISOLATED THUNDERSTORMS BY MID
AFTERNOON. PATCHY FOG BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES
CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ265-281015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1006 PM EDT SAT MAY 27 2017

.REST OF TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG.
ISOLATED RAIN SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. SCATTERED SHOWERS.
ISOLATED THUNDERSTORMS BY MID AFTERNOON. PATCHY FOG BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING
TO 2 TO 4 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ266-281015-
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-
1006 PM EDT SAT MAY 27 2017

.REST OF TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG.
ISOLATED RAIN SHOWERS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG. SCATTERED
RAIN SHOWERS. ISOLATED THUNDERSTORMS BY MID AFTERNOON. WAVES CALM
TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. A
CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO
2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ267-281015-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1006 PM EDT SAT MAY 27 2017

.REST OF TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. SCATTERED RAIN SHOWERS. PATCHY FOG AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. PATCHY FOG. SCATTERED RAIN SHOWERS THROUGH EARLY
AFTERNOON. NUMEROUS RAIN SHOWERS AND ISOLATED THUNDERSTORMS BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES 2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$
LSZ261-281015-
MAFOR 2803/
SUPERIOR WEST 12510 12400 12500 12510. SCATTERED SHOWERS FROM
LATE SUNDAY MORNING THROUGH SUNDAY EVENING. WAVES 1 FOOT OR LESS.

SUPERIOR NORTH CENTRAL 14400 13310 11400. PATCHY FOG OVERNIGHT
THROUGH EARLY SUNDAY EVENING. SCATTERED SHOWERS LATE SUNDAY
MORNING THROUGH SUNDAY EVENING. WAVES 1 FOOT OR LESS.

SUPERIOR SOUTH CENTRAL 13400 12300 12310 11400. PATCHY FOG.
SCATTERED SHOWERS FROM LATE SUNDAY MORNING THROUGH SUNDAY
EVENING. WAVES 1 FOOT OR LESS.

SUPERIOR EAST 12400 13300 12200 11300. PATCHY FOG. SCATTERED
SHOWERS SUNDAY MORNING THROUGH SUNDAY EVENING. WAVES 1 FOOT OR
LESS.

$$

JSS

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MQT/GLFTABLE

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES



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