Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 032042
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
342 PM EST TUE MAR 3 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.3 INCH LOW MOVING OVER NORTHERN ONTARIO WILL DRAG A
COLD FRONT ACROSS THE GREAT LAKES TONIGHT. AS THE LOW MOVES OVER
NORTHERN QUEBEC WEDNESDAY...HIGH PRESSURE OF 30.6 INCHES WILL MOVE
FROM THE CANADIAN ROCKIES TO THE NORTHERN PLAINS. THE HIGH WILL THEN
MOVE OVER THE MID MISSISSIPPI VALLEY THURSDAY EVENING. AS THE HIGH
PRESSURE CONTINUES MOVING TO THE SOUTHEAST...A TROUGH AVERAGING 29.7
INCHES WILL DRIFT ACROSS NORTHERN ONTARIO AND THE UPPER GREAT LAKES
FRIDAY INTO SATURDAY MORNING. A 30.3 INCH RIDGE OVER THE NORTHERN
PLAINS SATURDAY WILL WEAKEN TO 30.1 INCHES AS IT MOVES OVER THE
EASTERN GREAT LAKES SUNDAY MORNING. A 29.8 INCH LOW PRESSURE TROUGH
OVER THE NORTHERN PLAINS SUNDAY MORNING WILL REACH THE UPPER GREAT
LAKES BY SUNDAY EVENING.

LSZ162-040445-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
342 PM EST TUE MAR 3 2015

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS.
.WEDNESDAY...WEST WINDS 15 TO 25 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.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST.

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

$$

LSZ263-040445-
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-
342 PM EST TUE MAR 3 2015

.TONIGHT...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
AFTER MIDNIGHT. SCATTERED SNOW SHOWERS.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
SNOW.

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

$$

LSZ264-040445-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
342 PM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM 10 PM EST THIS EVENING THROUGH
WEDNESDAY AFTERNOON...

.LATE THIS AFTERNOON...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO 35 KNOTS
BY MID EVENING. SCATTERED SNOW SHOWERS.
.WEDNESDAY...WEST GALES TO 35 KNOTS IN THE MORNING BECOMING
NORTHWEST 15 TO 25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF SNOW.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. A CHANCE OF SNOW.

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

$$

LSZ265-040445-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
342 PM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM 10 PM EST THIS EVENING THROUGH
WEDNESDAY AFTERNOON...

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. SCATTERED 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. A SLIGHT CHANCE OF SNOW
SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. A CHANCE OF SNOW.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
SNOW.

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

$$

LSZ266-040445-
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-
342 PM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM 10 PM EST THIS EVENING THROUGH
WEDNESDAY EVENING...

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO 35 KNOTS
BY MID EVENING. SCATTERED SNOW SHOWERS.
.WEDNESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. A CHANCE OF SNOW.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SNOW.

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

$$

LSZ267-040445-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
342 PM EST TUE MAR 3 2015

...GALE WARNING IN EFFECT FROM 1 AM EST WEDNESDAY THROUGH
WEDNESDAY EVENING...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. SNOW
LIKELY.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. SCATTERED 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...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SNOW.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
SNOW.

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

$$

LSZ261-040445-
MAFOR 0322/
SUPERIOR WEST 13640 13630 12640. A CHANCE OF SNOW EARLY THIS
EVENING. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11630 14650 11640
12740. A CHANCE OF SNOW EARLY THIS EVENING...THEN SCATTERED SNOW
SHOWERS THIS EVENING. A CHANCE OF SNOW SHOWERS EARLY WEDNESDAY
AFTERNOON. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11620 11640 15650.
A CHANCE OF SNOW THIS EVENING...THEN SCATTERED SNOW SHOWERS
OVERNIGHT. A CHANCE OF SNOW SHOWERS EARLY WEDNESDAY AFTERNOON. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST...GALE WARNING IN EFFECT...11517 11630 11650 11750
13640 11740. SCATTERED SNOW SHOWERS OVERNIGHT. A CHANCE OF SNOW
SHOWERS EARLY WEDNESDAY AFTERNOON. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

$$

07


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