Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

297
FZUS63 KMQT 031348
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
948 AM EDT TUE MAY 3 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.0 INCH HIGH PRESSURE RIDGE WILL SLIDE SOUTHEAST OF
THE AREA THIS MORNING AS A 29.5 INCH LOW PRESSURE APPROACHES FROM
NORTHERN ONTARIO. THIS LOW WILL PUSH A 29.6 INCH TROUGH ACROSS LAKE
SUPERIOR THIS AFTERNOON. AS THE TROUGH MOVES EASTWARD TONIGHT INTO
WEDNESDAY...30.1 INCH HIGH PRESSURE WILL BUILD ACROSS MANITOBA AND
FAR NORTHWEST ONTARIO AND THEN INTO THE UPPER GREAT LAKES WEDNESDAY
NIGHT INTO THURSDAY. LOW PRESSURE OF 29.6 INCHES OVER SOUTH CENTRAL
CANADA THURSDAY NIGHT WILL LIFT ACROSS ONTARIO TO JUST SOUTH OF JAMES
BAY FRIDAY NIGHT. THIS LOW WILL PUSH A 29.7 INCH TROUGH ACROSS LAKE
SUPERIOR FRIDAY NIGHT AS 30.1 HIGH PRESSURE BUILDS INTO THE NORTHERN
PLAINS ON SATURDAY.

LSZ162-032100-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
948 AM EDT TUE MAY 3 2016 /848 AM CDT TUE MAY 3 2016/

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
2 TO 4 FEET SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS DIMINISHING TO LESS
THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A
CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST. WAVES
CALM TO 2 FEET.

$$

LSZ263-032100-
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-
948 AM EDT TUE MAY 3 2016

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
2 TO 4 FEET SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS THROUGH MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
6 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING
SOUTHWEST LESS THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-032100-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
948 AM EDT TUE MAY 3 2016

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST BY
MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES 1 TO 3 FEET
SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3
FEET LATE.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-032100-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
948 AM EDT TUE MAY 3 2016

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF DRIZZLE AFTER MIDNIGHT. WAVES BUILDING TO 3 TO
5 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS AND DRIZZLE THROUGH EARLY AFTERNOON. WAVES BUILDING TO
4 TO 7 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
RAIN SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-032100-
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-
948 AM EDT TUE MAY 3 2016

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
1 TO 3 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS. WAVES BUILDING TO 5 TO 8
FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15
KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
RAIN SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ267-032100-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
948 AM EDT TUE MAY 3 2016

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES CALM
TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF DRIZZLE AFTER MIDNIGHT. WAVES BUILDING TO 3 TO
5 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS AND
DRIZZLE THROUGH EARLY AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET...
THEN SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$
LSZ261-032100-
MAFOR 0315/
SUPERIOR WEST 11520 11610 13810 12820 11810. CHANCE OF SHOWERS
THIS AFTERNOON. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11520 11620 11710 12830 13840. CHANCE OF
RAIN SHOWERS THIS AFTERNOON. WAVES 2 TO 6 FEET.

SUPERIOR SOUTH CENTRAL 11510 12610 11730 12830 12840. CHANCE OF
RAIN SHOWERS THIS AFTERNOON. WAVES 1 TO 3 FEET THROUGH THIS EVENING
THEN BUILDING TO 3 TO 6 FEET TONIGHT AND WEDNESDAY MORNING.

SUPERIOR EAST 12510 11600 11710 11720 12830 11840. CHANCE OF
RAIN SHOWERS THIS AFTERNOON. CHANCE OF RAIN SHOWERS THROUGH EARLY
EVENING TONIGHT. WAVES 1 TO 3 FEET THROUGH THIS EVENING BUILDING TO 3
TO 6 FEET TONIGHT AND WEDNESDAY MORNING.

$$

MZ



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.