Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 020902
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
402 AM EST MON MAR 2 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.0 INCH LOW PRESSURE TROUGH EAST OF LAKE SUPERIOR
WILL CONTINUE EASTWARD TODAY. MEANWHILE...HIGH PRESSURE OF 30.5
INCHES WILL DRIFT EASTWARD ACROSS THE WESTERN GREAT LAKES AND OHIO
VALLEY THROUGH TONIGHT. AS THE HIGH REACHES THE EAST COAST
TUESDAY...29.7 INCH LOW PRESSURE WILL TRACK EASTWARD ACROSS THE
CENTRAL PLAINS TO THE SOUTH OF A 29.5 INCH LOW MOVING OVER FAR
NORTHERN ONTARIO. THE PLAINS LOW WILL REACH THE LOWER GREAT LAKES
WEDNESDAY MORNING WHILE THE NORTHERN LOW MOVES TO JAMES BAY. A 30.0
INCH TROUGH ASSOCIATED WITH THESE LOWS WILL TRACK SOUTHEASTWARD
ACROSS LAKE SUPERIOR ON WEDNESDAY. MEANWHILE...HIGH PRESSURE OF 30.5
INCHES WILL BUILD OVER THE NORTHERN HIGH PLAINS ON WEDNESDAY...AND
TRACK TO THE OHIO VALLEY BY THURSDAY NIGHT. AS THE HIGH PRESSURE
CONTINUES MOVING EASTWARD ON FRIDAY...A TROUGH AVERAGING 29.9 INCHES
WILL MOVE EASTWARD ACROSS NORTHWEST ONTARIO AND THE UPPER GREAT
LAKES REGION.

LSZ162-021715-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
402 AM EST MON MAR 2 2015

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

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

$$

LSZ263-021715-
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-
402 AM EST MON MAR 2 2015

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

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

$$

LSZ264-021715-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
402 AM EST MON MAR 2 2015

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

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

$$

LSZ265-021715-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
402 AM EST MON MAR 2 2015

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

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

$$

LSZ266-021715-
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-
402 AM EST MON MAR 2 2015

.EARLY THIS MORNING...NORTHWEST WINDS 20 TO 30 KNOTS. SCATTERED
SNOW SHOWERS.
.TODAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING.
.TONIGHT...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. SNOW LIKELY IN THE
MORNING...THEN SNOW IN THE AFTERNOON.
.TUESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
40 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.WEDNESDAY...WEST GALES TO 35 KNOTS. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SNOW.

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

$$

LSZ267-021715-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
402 AM EST MON MAR 2 2015

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

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

$$

LSZ261-021715-
MAFOR 0210/
SUPERIOR WEST 12610 12520 14410. CHANCE OF SNOW LATE TONIGHT. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL 11630 11620 11610 12520 11410 12420. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL 11730 19740 11630 11620 11610 11410 11310
11410 11420. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 11740 11730 11720 11620 11400 11410 12420.
SCATTERED SNOW SHOWERS THIS MORNING. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

$$

KC


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