Great Lakes Forecast
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000
FZUS63 KMQT 170202
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1002 PM EDT SUN APR 16 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 29.9 INCH TROUGH OVER THE UPPER GREAT LAKES WILL
GRADUALLY DISSIPATE THROUGH MONDAY MORNING. A 30.3 INCH RIDGE
OVER THE NORTHERN PLAINS MONDAY MORNING WILL MOVE OVER THE EASTERN
GREAT LAKES TUESDAY AS A 29.6 INCH LOW MOVES OVER MINNESOTA. THE
LOW WILL CROSS LAKE SUPERIOR AT 29.7 INCHES TUESDAY NIGHT WHILE A
30.3 INCH HIGH PRESSURE MOVES INTO NORTHERN ONTARIO. THE HIGH WILL
MOVE OVER QUEBEC ON THURSDAY AS A 29.6 INCH LOW PRESSURE MOVES
FROM THE CENTRAL PLAINS TO LOWER MICHIGAN. THE LOW WILL REACH THE
EAST COAST FRIDAY AS A 30.3 INCH RIDGE MOVES OVER THE NORTHERN
GREAT LAKES.

LSZ162-171015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1002 PM EDT SUN APR 16 2017 /902 PM CDT SUN APR 16 2017/

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS. PATCHY FOG.
SCATTERED RAIN SHOWERS THROUGH MIDNIGHT. AREAS OF DRIZZLE.
ISOLATED SNOW SHOWERS AFTER MIDNIGHT. WAVES 1 TO 3 FEET SUBSIDING
TO CALM TO 2 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW AFTER MIDNIGHT. WAVES BUILDING
TO 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH BY MID
AFTERNOON. RAIN SHOWERS LIKELY. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-171015-
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-
1002 PM EDT SUN APR 16 2017

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5
TO 15 KNOTS LATE. ISOLATED RAIN SHOWERS THROUGH MIDNIGHT. AREAS
OF DRIZZLE AND FREEZING DRIZZLE. ISOLATED SNOW SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. ISOLATED SNOW SHOWERS THROUGH EARLY AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH BY MID
AFTERNOON. RAIN SHOWERS. WAVES BUILDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS THROUGH MIDNIGHT. WAVES
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-171015-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1002 PM EDT SUN APR 16 2017

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS LATE. ISOLATED SNOW SHOWERS AND PATCHY FREEZING
DRIZZLE. WAVES 1 TO 3 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST LATE.
ISOLATED SNOW SHOWERS THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO
CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30
KNOTS WITH GALE FORCE GUSTS TO 35 KNOTS BY MID AFTERNOON. A
CHANCE OF RAIN SHOWERS THROUGH EARLY AFTERNOON...THEN RAIN
SHOWERS. WAVES BUILDING TO 5 TO 9 FEET OCCASIONALLY TO 11 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-171015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1002 PM EDT SUN APR 16 2017

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
LATE. ISOLATED RAIN SHOWERS THROUGH MIDNIGHT. PATCHY DRIZZLE.
WAVES CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS. ISOLATED SNOW SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON...THEN RAIN SHOWERS. WAVES BUILDING TO 4 TO 7 FEET
OCCASIONALLY TO 9 FEET...THEN SUBSIDING TO 3 TO 6 FEET
OCCASIONALLY TO 8 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS BACKING NORTH. WAVES
BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET...THEN SUBSIDING
TO 2 TO 4 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-171015-
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-
1002 PM EDT SUN APR 16 2017

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. ISOLATED SNOW SHOWERS...PATCHY DRIZZLE AND
FREEZING DRIZZLE. WAVES 1 TO 3 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS LATE. ISOLATED SNOW SHOWERS THROUGH EARLY AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30
KNOTS WITH GALE FORCE GUSTS TO 35 KNOTS BY MID AFTERNOON. A
CHANCE OF RAIN SHOWERS THROUGH EARLY AFTERNOON...THEN RAIN SHOWERS
LIKELY. WAVES BUILDING TO 5 TO 9 FEET OCCASIONALLY TO 11 FEET.
.TUESDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH MIDNIGHT. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET
OCCASIONALLY TO 7 FEET.
.THURSDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF RAIN AND SNOW. WAVES BUILDING TO 3 TO
6 FEET OCCASIONALLY TO 8 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-171015-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1002 PM EDT SUN APR 16 2017

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET OCCASIONALLY TO 8 FEET.
.TUESDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH MIDNIGHT...
THEN A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO
1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING
TO 2 TO 4 FEET.
.THURSDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF RAIN...POSSIBLY MIXED WITH SNOW. WAVES
BUILDING TO 3 TO 5 FEET OCCASIONALLY TO 7 FEET...THEN SUBSIDING
TO 2 TO 4 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$
LSZ261-171015-
MAFOR 1703/
SUPERIOR WEST 11225 11210 13220 13210. AREAS OF DRIZZLE LATE THIS
EVENING. PATCHY DRIZZLE THROUGH MID MORNING MONDAY. WAVES 1 TO 3
FEET.

SUPERIOR NORTH CENTRAL 14120 12110 11200 11300. PATCHY FREEZING
DRIZZLE OVERNIGHT. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 12810 14110 11100 11200. PATCHY DRIZZLE
OVERNIGHT. SCATTERED SNOW SHOWERS LATE MONDAY MORNING. WAVES 1 TO
2 FEET.

SUPERIOR EAST 11110 13120 11110 13810. PATCHY FREEZING DRIZZLE
OVERNIGHT THROUGH MID MORNING MONDAY. WAVES 1 TO 3 FEET.

$$

KLUBER

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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