Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | 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
000
FZUS63 KMQT 230806
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
406 AM EDT SAT MAY 23 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK 30.1 INCH TROUGH WILL MOVE ACROSS LAKE SUPERIOR
TODAY. A 30.2 INCH RIDGE WILL THEN RETURN TO THE GREAT LAKES TONIGHT
INTO SUNDAY. EXPECT 29.8 INCH LOW PRESSURE SYSTEM OVER THE CENTRAL
AND SOUTHERN PLAINS SUNDAY MORNING TO DEEPEN TO AROUND 29.7 INCHES
ACROSS IOWA AND SOUTHERN MINNESOTA BY DAYBREAK MONDAY...AND TO 29.6
INCHES OVER WESTERN LAKE SUPERIOR DURING THE DAYTIME HOURS MONDAY.
THIS LOW WILL MERGE WITH A 29.6 INCH LOW PUSHING ACROSS CENTRAL
CANADA MONDAY NIGHT AND THEN LINGER ACROSS WESTERN LAKE SUPERIOR
THROUGH TUESDAY. ON WEDNESDAY MORNING...THE LOW WILL BE SOUTH OF
JAMES BAY AND WILL TRACK NORTHEAST INTO QUEBEC ON WEDNESDAY
AFTERNOON.

LSZ162-231615-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
406 AM EDT SAT MAY 23 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO
2 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS. RAIN SHOWERS. WAVES BUILDING
TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.

$$

LSZ263-231615-
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-
406 AM EDT SAT MAY 23 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. RAIN SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. RAIN SHOWERS
LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.

$$

LSZ264-231615-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
406 AM EDT SAT MAY 23 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. A SLIGHT
CHANCE OF RAIN SHOWERS. WAVES 2 TO 4 FEET BUILDING TO 3 TO
5 FEET.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
6 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS BY MID AFTERNOON. RAIN SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. RAIN SHOWERS
LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.

$$

LSZ265-231615-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
406 AM EDT SAT MAY 23 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM
TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TODAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING
TO CALM TO 2 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. RAIN SHOWERS LIKELY.
WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ266-231615-
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-
406 AM EDT SAT MAY 23 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. A SLIGHT
CHANCE OF RAIN SHOWERS. WAVES 2 TO 4 FEET.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO
4 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO
2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. RAIN SHOWERS LIKELY.
WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. A CHANCE
OF RAIN SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ267-231615-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
406 AM EDT SAT MAY 23 2015

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON.
WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT...THEN RAIN SHOWERS LIKELY AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. RAIN SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM
TO 2 FEET.

$$

LSZ261-231615-
MAFOR 2309/
SUPERIOR WEST 14520 11520 13510. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 14530 14520. WAVES 2 TO 6 FEET.

SUPERIOR SOUTH CENTRAL 12520 12620 12610 12510. WAVES 1 TO 4 FEET.

SUPERIOR EAST 11420 12520 11510 12610 11500 11510. WAVES 2 TO 5
FEET.

$$

TITUS


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