Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 262023
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
323 PM EST THU FEB 26 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.8 INCH HIGH PRESSURE OVER THE NORTHERN PLAINS TONIGHT
WILL SINK ACROSS THE OHIO VALLEY BY FRIDAY NIGHT...AND THE MID
ATLANTIC STATES OVER THE WEEKEND. EXPECT A 29.4 INCH LOW PRESSURE
SYSTEM OVER NORTHERN HUDSON BAY ON SUNDAY TO SLIDE ACROSS NORTHERN
QUEBEC MONDAY AT 29.5 INCHES. THIS WILL DRAG A 30.0 INCH TROUGH
ACROSS THE UPPER GREAT LAKES SUNDAY NIGHT...BEFORE A 30.3 INCH RIDGE
BUILDS IN FROM HIGH PRESSURE SETTLING ACROSS THE MID MISSISSIPPI
VALLEY ON MONDAY.

LSZ162-270430-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
323 PM EST THU FEB 26 2015

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH.
.TUESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. A CHANCE OF SNOW.

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

$$

LSZ263-270430-
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-
323 PM EST THU FEB 26 2015

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

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

$$

LSZ264-270430-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
323 PM EST THU FEB 26 2015

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SNOW SHOWERS.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. ISOLATED SNOW SHOWERS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON.
.SATURDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF SNOW.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO 15 KNOTS.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING EAST. A CHANCE OF
SNOW.

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

$$

LSZ265-270430-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
323 PM EST THU FEB 26 2015

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SNOW SHOWERS.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. ISOLATED SNOW SHOWERS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.

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

$$

LSZ266-270430-
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-
323 PM EST THU FEB 26 2015

.LATE THIS AFTERNOON...NORTHWEST WINDS 15 TO 25 KNOTS. ISOLATED
SNOW SHOWERS.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. ISOLATED SNOW SHOWERS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED SNOW SHOWERS.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS IN
THE EVENING.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS.
.SATURDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO 15 KNOTS.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.

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

$$

LSZ267-270430-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
323 PM EST THU FEB 26 2015

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SNOW SHOWERS.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED SNOW SHOWERS.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS IN
THE EVENING.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO
15 KNOTS.
.TUESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST. A CHANCE
OF SNOW.

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

$$

LSZ261-270430-
MAFOR 2622/
SUPERIOR WEST 12720 12710 12620 12530. WAVES OMITTED FOR MOSTLY
ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL 14720 11720 11620 11630 11530. ISOLATED SNOW
SHOWERS. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL 11720 11730 12720 14620. ISOLATED SNOW
SHOWERS INTO FRIDAY MORNING. WAVES OMITTED FOR MOSTLY ICE COVERED
AREAS.

SUPERIOR EAST 14720 11720 13620. ISOLATED SNOW SHOWERS. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

JLA



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