Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 011508
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1008 AM EST SUN MAR 1 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.7 INCH HIGH PRESSURE SYSTEM CENTERED OVER CAPE COD
THIS MORNING WILL MOVE OFF INTO THE ATLANTIC 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.

LSZ162-012315-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1008 AM EST SUN MAR 1 2015

.REST OF TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
20 TO 30 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS LATE 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.

$$

LSZ263-012315-
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-
1008 AM EST SUN MAR 1 2015

.REST OF TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
20 TO 30 KNOTS IN THE AFTERNOON. SCATTERED 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.

$$

LSZ264-012315-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1008 AM EST SUN MAR 1 2015

.REST OF TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
20 TO 30 KNOTS IN THE AFTERNOON. SCATTERED 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.

$$

LSZ265-012315-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1008 AM EST SUN MAR 1 2015

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN
THE AFTERNOON. SCATTERED 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.

$$

LSZ266-012315-
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-
1008 AM EST SUN MAR 1 2015

.REST OF TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN
THE AFTERNOON. SCATTERED 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.

$$

LSZ267-012315-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1008 AM EST SUN MAR 1 2015

.REST OF 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.

$$
LSZ261-012315-
MAFOR 0116/
SUPERIOR WEST 11540 11640 11630 14620 11610. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL 11540 12640 14630 11620. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS. SCATTERED SNOW SHOWERS TODAY.

SUPERIOR SOUTH CENTRAL 11520 12620 14630 11630. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS. SCATTERED SNOW SHOWERS TODAY.

SUPERIOR EAST 11530 11520 11620 12630 13730. SCATTERED SNOW
SHOWERS THIS AFTERNOON. CHANCE OF SNOW SHOWERS AFTER MIDNIGHT
TONIGHT. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

JS



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