Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 010858
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
358 AM EST SUN MAR 1 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.8 INCH HIGH PRESSURE SYSTEM CENTERED OVER THE
DELMARVA PENINSULA THIS MORNING WILL MOVE OFF THE EASTERN SEABOARD
BY THIS AFTERNOON. A 29.8 INCH LOW PRESSURE TROUGH SWINGING
SOUTHEAST ACROSS CENTRAL CANADA WILL SWEEP ACROSS LAKE SUPERIOR THIS
AFTERNOON INTO TONIGHT. HIGH PRESSURE OF 30.5 INCHES BUILDING ACROSS
THE NORTHERN PLAINS TONIGHT WILL SHIFT EAST...PASSING ACROSS THE
WESTERN GREAT LAKES AND OHIO VALLEY MONDAY AND MONDAY NIGHT. AS THE
HIGH REACHES THE EAST COAST TUESDAY...A 29.7 INCH LOW PRESSURE WILL
TRACK EAST ACROSS THE CENTRAL PLAINS TO THE SOUTH OF A 29.5 INCH LOW
MOVING INTO FAR NORTHERN ONTARIO. THE PLAINS LOW WILL REACH THE
LOWER GREAT LAKES WEDNESDAY MORNING WHILE THE NORTHERN LOW MOVES TO
JAMES BAY. BEHIND THESE LOWS...HIGH PRESSURE OF 30.4 INCHES WILL
BUILD INTO THE WESTERN PLAINS.

LSZ162-011700-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
358 AM EST SUN MAR 1 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. ISOLATED
SNOW SHOWERS.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS IN THE EVENING.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW LIKELY.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST
AFTER MIDNIGHT.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS.

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

$$

LSZ263-011700-
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-
358 AM EST SUN MAR 1 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. ISOLATED
SNOW SHOWERS.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. SNOW LIKELY.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.

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

$$

LSZ264-011700-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
358 AM EST SUN MAR 1 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. ISOLATED
SNOW SHOWERS.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT.
.TUESDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN SNOW LIKELY IN
THE AFTERNOON.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS.

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

$$

LSZ265-011700-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
358 AM EST SUN MAR 1 2015

.EARLY THIS MORNING...SOUTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SNOW SHOWERS.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. ISOLATED SNOW SHOWERS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.MONDAY...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO 20 KNOTS
IN THE AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. SNOW.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.

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

$$

LSZ266-011700-
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-
358 AM EST SUN MAR 1 2015

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. ISOLATED SNOW
SHOWERS.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. ISOLATED SNOW SHOWERS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT.
.TUESDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.

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

$$

LSZ267-011700-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
358 AM EST SUN MAR 1 2015

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. ISOLATED SNOW
SHOWERS.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.MONDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT.
.TUESDAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SNOW.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN
A CHANCE OF SNOW AFTER MIDNIGHT.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.

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

$$

LSZ261-011700-
MAFOR 0110/
SUPERIOR WEST 11520 11530 11540 11640 11630 13620. ISOLATED SNOW
SHOWERS THIS MORNING. SLIGHT CHANCE OF SNOW SHOWERS THIS EVENING.
WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL 12530 11540 12640 13630. ISOLATED SNOW
SHOWERS TODAY. SLIGHT CHANCE OF SNOW SHOWERS TONIGHT. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL 11510 12520 12620 13630. ISOLATED SNOW SHOWERS
TODAY. SLIGHT CHANCE OF SNOW SHOWERS TONIGHT. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 11520 12530 11520 11620 12630 11730. ISOLATED SNOW
SHOWERS THIS MORNING. SCATTERED SNOW SHOWERS THIS AFTERNOON. CHANCE
OF SNOW SHOWERS TONIGHT. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

KC



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