Great Lakes Forecast
Issued by NWS

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956
FZUS63 KMQT 251355
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
955 AM EDT SAT MAR 25 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.5 INCH LOW OVER SOUTHWEST MISSOURI WILL MOVE TO
NORTHERN ILLINOIS LATE TONIGHT WHILE HIGH PRESSURE OF 30.5 INCHES
MOVES FROM NORTHERN ONTARIO ACROSS QUEBEC. THE HIGH WILL SLIDE
ACROSS NEW ENGLAND AND FAR EASTERN QUEBEC SUNDAY INTO SUNDAY NIGHT
WHILE THE LOW OVER ILLINOIS LIFTS ACROSS THE CENTRAL GREAT LAKES.
EXPECT THE LOW TO DRIFT ACROSS THE LOWER GREAT LAKES MONDAY
THROUGH TUESDAY AS A 30.2 INCH RIDGE BUILDS OVER THE WESTERN GREAT
LAKES. THIS RIDGE WILL BUILD TO 30.4 INCHES OVER THE UPPER GREAT
LAKES ON WEDNESDAY.

LSZ162-252200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
955 AM EDT SAT MAR 25 2017 /855 AM CDT SAT MAR 25 2017/

.REST OF TODAY...EAST WINDS 20 TO 30 KNOTS. WAVES 3 TO 6 FEET
BUILDING TO 4 TO 7 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. A SLIGHT CHANCE OF
FREEZING RAIN AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF FREEZING RAIN
THROUGH EARLY AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN...POSSIBLY MIXED
WITH FREEZING RAIN. WAVES CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. WAVES CALM TO
2 FEET.
.MONDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ263-252200-
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-
955 AM EDT SAT MAR 25 2017

.REST OF TODAY...EAST WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. A SLIGHT CHANCE OF
FREEZING RAIN AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. A SLIGHT CHANCE OF FREEZING RAIN THROUGH EARLY
AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
FREEZING RAIN THROUGH MIDNIGHT. A CHANCE OF RAIN. WAVES SUBSIDING
TO CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-252200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
955 AM EDT SAT MAR 25 2017

.REST OF TODAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO
4 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. A CHANCE OF RAIN...POSSIBLY MIXED WITH FREEZING RAIN
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. RAIN LIKELY...POSSIBLY MIXED WITH
FREEZING RAIN THROUGH EARLY AFTERNOON...THEN A CHANCE OF RAIN BY
MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. A CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY AFTERNOON. WAVES
CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.

$$

LSZ265-252200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
955 AM EDT SAT MAR 25 2017

.REST OF TODAY...EAST WINDS 15 TO 25 KNOTS. WAVES 3 TO 5 FEET.
.TONIGHT...EAST WINDS 20 TO 30 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING RAIN...POSSIBLY MIXED WITH RAIN
AND SLEET LIKELY AFTER MIDNIGHT. WAVES 3 TO 6 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. RAIN LIKELY...POSSIBLY MIXED WITH FREEZING
RAIN. PATCHY FOG BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO
3 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. A CHANCE OF RAIN.
WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN...
POSSIBLY MIXED WITH SNOW THROUGH EARLY AFTERNOON. WAVES CALM TO
2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.

$$

LSZ266-252200-
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-
955 AM EDT SAT MAR 25 2017

.REST OF TODAY...EAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO
4 FEET...THEN BUILDING TO 3 TO 5 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. RAIN LIKELY...POSSIBLY MIXED WITH FREEZING RAIN AND
SLEET AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF FREEZING RAIN AND SLEET
THROUGH EARLY AFTERNOON. RAIN LIKELY. WAVES SUBSIDING TO 1 TO
3 FEET.
.SUNDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. PATCHY FOG. RAIN LIKELY THROUGH MIDNIGHT. A CHANCE OF
RAIN AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. RAIN LIKELY THROUGH EARLY AFTERNOON...THEN A SLIGHT
CHANCE OF RAIN BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
BUILDING TO 1 TO 3 FEET.

$$

LSZ267-252200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
955 AM EDT SAT MAR 25 2017

.REST OF TODAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING RAIN...POSSIBLY MIXED WITH
SLEET AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. FREEZING RAIN THROUGH
EARLY AFTERNOON. RAIN LIKELY. A SLIGHT CHANCE OF FREEZING RAIN BY
MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. RAIN. PATCHY FOG AFTER MIDNIGHT. WAVES SUBSIDING TO
CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. RAIN LIKELY THROUGH EARLY AFTERNOON...
THEN A CHANCE OF RAIN BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.

$$

LSZ261-252200-
MAFOR 2515/
SUPERIOR WEST 11230 12240 12230 12220 11216. CHANCE OF RAIN LATE
TONIGHT THROUGH MID SUNDAY MORNING. WAVES 2 TO 7 FEET.

SUPERIOR NORTH CENTRAL 11220 13230 13330 11326. WAVES 3 TO 6
FEET.

SUPERIOR SOUTH CENTRAL 11220 13230 12330 11336 11226. CHANCE OF
LIGHT FREEZING RAIN LATE SUNDAY MORNING. WAVES 3 TO 5 FEET.

SUPERIOR EAST 13220 11230 12330 12340. CHANCE OF LIGHT SLEET
THROUGH MID SUNDAY MORNING. WAVES 1 TO 6 FEET.


$$

JS



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