Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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
488
FZUS63 KMQT 061353
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
953 AM EDT FRI MAY 6 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A HIGH PRESSURE RIDGE AVERAGING 30.0 INCHES OVER LOWER
MICHIGAN THIS MORNING WILL DRIFT EAST THROUGH TONIGHT AS LOW
PRESSURE OF 29.5 INCHES OVER WESTERN ONTARIO MOVES ACROSS LAKE
SUPERIOR THIS EVENING. THIS LOW WILL REACH LAKE HURON BY SATURDAY
MORNING. A 30.0 HIGH PRESSURE OVER THE NORTHERN PLAINS ON SATURDAY
WILL BUILD TOWARD THE GREAT LAKES REGION SATURDAY NIGHT AS THE LOW
LIFTS NORTHEAST INTO QUEBEC. A SECONDARY LOW PRESSURE TROUGH OF 29.8
INCHES WILL CROSS THE UPPER GREAT LAKES SATURDAY NIGHT BEFORE THE
RIDGE EXPANDS ACROSS LAKE SUPERIOR SUNDAY NIGHT. A 29.6 INCH LOW
PRESSURE OVER THE PLAINS MONDAY WILL LIFT INTO THE SOUTHERN GREAT
LAKES TUESDAY AS THE HIGH PRESSURE SHIFTS ACROSS NORTHERN ONTARIO.

LSZ162-062200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
953 AM EDT FRI MAY 6 2016 /853 AM CDT FRI MAY 6 2016/

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS. PATCHY FOG BY
EARLY AFTERNOON. SCATTERED SHOWERS AND THUNDERSTORMS BY LATE
AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH AFTER
MIDNIGHT. SCATTERED SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
WAVES CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ263-062200-
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-
953 AM EDT FRI MAY 6 2016

.REST OF TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS BY MID AFTERNOON. PATCHY FOG BY MID AFTERNOON.
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS BY LATE AFTERNOON.
WAVES 1 TO 3 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. NUMEROUS RAIN SHOWERS THROUGH MIDNIGHT.
ISOLATED THUNDERSTORMS. ISOLATED RAIN SHOWERS AFTER MIDNIGHT.
WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS LESS THAN 10 KNOTS VEERING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-062200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
953 AM EDT FRI MAY 6 2016

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS BY MID AFTERNOON. PATCHY FOG. SCATTERED RAIN
SHOWERS AND ISOLATED THUNDERSTORMS BY LATE AFTERNOON. WAVES CALM TO
2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS. NUMEROUS RAIN SHOWERS
THROUGH MIDNIGHT. ISOLATED THUNDERSTORMS. ISOLATED RAIN SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO
1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST. WAVES CALM
TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ265-062200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
953 AM EDT FRI MAY 6 2016

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS THROUGH LATE EVENING...THEN NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SATURDAY NIGHT...WEST WINDS LESS THAN 10 KNOTS BECOMING
NORTHWEST 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. WAVES CALM
TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-062200-
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-
953 AM EDT FRI MAY 6 2016

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG BY EARLY
AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 2 TO 4 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS THROUGH LATE EVENING...THEN NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST. WAVES CALM
TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ267-062200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
953 AM EDT FRI MAY 6 2016

.REST OF TODAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET
BUILDING TO 2 TO 4 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS BACKING NORTH AFTER
MIDNIGHT. NUMEROUS RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
PATCHY FOG AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-062200-
MAFOR 0615/
SUPERIOR WEST 13520 11620 11820 11810 12700. PATCHY FOG THROUGH
EARLY EVENING. SCATTERED SHOWERS AND THUNDERSTORMS TONIGHT. WAVES 1
TO 4 FEET.

SUPERIOR NORTH CENTRAL 11410 12510 11626 11820 11830 11810 11710.
PATCHY FOG THROUGH EARLY EVENING. ISOLATED THUNDERSTORMS IN THE
EVENING...THEN SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. WAVES 2 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 12410 11420 11526 11630 11836 11830 11720.
PATCHY FOG THROUGH EARLY EVENING. SCATTERED THUNDERSTORMS IN THE
EVENING...THEN ISOLATED THUNDERSTORMS OVERNIGHT. WAVES 1 TO 6 FEET.

SUPERIOR EAST 11410 13420 11526 11730 11830 11720. PATCHY FOG
THIS AFTERNOON. SCATTERED THUNDERSTORMS LATE IN THE EVENING.
ISOLATED THUNDERSTORMS OVERNIGHT. WAVES 2 TO 6 FEET.

$$

PETRO



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