Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 030857
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
357 AM EST TUE MAR 3 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.7 INCH LOW PRESSURE SYSTEM WILL TRACK EASTWARD
ACROSS THE CENTRAL PLAINS TO THE SOUTH OF A 29.4 INCH LOW MOVING
OVER FAR NORTHERN ONTARIO TODAY. THE PLAINS LOW WILL REACH THE LOWER
GREAT LAKES WEDNESDAY MORNING WHILE THE NORTHERN LOW TRACKS TO JAMES
BAY. A 30.0 INCH TROUGH ASSOCIATED WITH THESE LOWS WILL SWEEP
SOUTHEASTWARD ACROSS LAKE SUPERIOR ON WEDNESDAY. MEANWHILE...HIGH
PRESSURE OF 30.5 INCHES WILL BUILD OVER THE NORTHERN HIGH PLAINS ON
WEDNESDAY...AND TO THE OHIO VALLEY BY THURSDAY NIGHT. AS THE HIGH
PRESSURE CONTINUES MOVING EASTWARD ON FRIDAY...A TROUGH AVERAGING
29.9 INCHES WILL DRIFT EASTWARD ACROSS NORTHWEST ONTARIO AND THE
UPPER GREAT LAKES REGION. A RIDGE WILL THEN BUILD ACROSS THE UPPER
GREAT LAKES BY LATE SATURDAY.

LSZ162-031700-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
357 AM EST TUE MAR 3 2015

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF
SNOW.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 15 TO 25 KNOTS
IN THE AFTERNOON. SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ263-031700-
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-
357 AM EST TUE MAR 3 2015

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE
OF SNOW.
.TODAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO
35 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ264-031700-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
357 AM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
AFTERNOON...

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS.
.TODAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. SNOW.
.TONIGHT...WEST GALES TO 35 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ265-031700-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
357 AM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
AFTERNOON...

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS.
.TODAY...SOUTH WINDS 10 TO 20 KNOTS. SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS BY MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS. A CHANCE OF SNOW.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ266-031700-
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-
357 AM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
EVENING...

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS.
.TODAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS
IN THE AFTERNOON. SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS BY MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY...WEST GALES TO 35 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS. A CHANCE OF SNOW.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ267-031700-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
357 AM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
EVENING...

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS.
.TODAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS
IN THE AFTERNOON. SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY...WEST GALES TO 35 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS. A CHANCE OF SNOW.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ261-031700-
MAFOR 0310/
SUPERIOR WEST 11410 11417 11527 11637 14640. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11410 12427
11527 11630 12650 11640. CHANCE OF SNOW SHOWERS AFTER MIDNIGHT
TONIGHT. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11420 13427
11620 13650. CHANCE OF SNOW AFTER MIDNIGHT. CHANCE OF SNOW
SHOWERS LATE TONIGHT. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST...GALE WARNING IN EFFECT...11420 13427 11517 11640
12650. CHANCE OF SNOW SHOWERS LATE TONIGHT. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

$$

KC


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