Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 041449
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
949 AM EST WED MAR 4 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...29.1 INCH LOW PRESSURE WILL CONTINUE TO EXIT ACROSS
QUEBEC TODAY...AS 30.6 INCH HIGH PRESSURE BUILDS ACROSS THE NORTHERN
PLAINS TODAY...THE MID MISSISSIPPI RIVER VALLEY THURSDAY...AND THE
OHIO RIVER VALLEY ON FRIDAY. MEANWHILE...A 29.5 INCH LOW CROSSING
HUDSON BAY ON FRIDAY WILL DRAG A COLD FRONT ACROSS THE UPPER GREAT
LAKES EARLY ON SATURDAY. IN ITS WAKE...A WEAK RIDGE AVERAGING 30.1
INCHES WILL CROSS THE WESTERN GREAT LAKES LATER ON SATURDAY. LOOK FOR
A 29.7 INCH LOW PRESSURE SYSTEM TO CROSS ONTARIO ON SUNDAY AND DRAG
ANOTHER COLD FRONT ACROSS THE UPPER LAKES ON SUNDAY NIGHT.

LSZ162-042300-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
949 AM EST WED MAR 4 2015

.REST OF TODAY...WEST WINDS 20 TO 30 KNOTS. ISOLATED SNOW
SHOWERS. WAVES 1 TO 3 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. FLURRIES IN THE MORNING.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ263-042300-
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-
949 AM EST WED MAR 4 2015

.REST OF TODAY...WEST GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS. SCATTERED 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. A SLIGHT CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS.
A CHANCE OF SNOW.

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

$$

LSZ264-042300-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
949 AM EST WED MAR 4 2015

...GALE WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.REST OF TODAY...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS. SCATTERED 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 SLIGHT CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT.
.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 5 TO 15 KNOTS BACKING SOUTHWEST. A
CHANCE OF SNOW.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.

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

$$

LSZ265-042300-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
949 AM EST WED MAR 4 2015

...GALE WARNING IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

.REST OF TODAY...WEST GALES TO 40 KNOTS. SCATTERED SNOW SHOWERS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS
AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS. A CHANCE OF SNOW.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.

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

$$

LSZ266-042300-
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-
949 AM EST WED MAR 4 2015

...GALE WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING...

.REST OF TODAY...WEST GALES TO 40 KNOTS. SCATTERED SNOW SHOWERS.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS. A CHANCE OF SNOW.
.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.

$$

LSZ267-042300-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
949 AM EST WED MAR 4 2015

...GALE WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING...

.REST OF TODAY...WEST GALES TO 40 KNOTS. SCATTERED SNOW SHOWERS.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT. SCATTERED SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS.
.THURSDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
.FRIDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST 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 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.

$$
LSZ261-042300-
MAFOR 0416/
SUPERIOR WEST 12640 11630 11620 13610 11620. WAVES 3 FEET OR LESS.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...12650 11640
11620 13610 11620. SCATTERED SNOW SHOWERS. WAVES OMITTED FOR MOSTLY
ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...12650 11657
11630 11627 12610 11620. SCATTERED SNOW SHOWERS. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR EAST...GALE WARNING IN EFFECT...13650 11630 11720 12610
11620. SCATTERED SNOW SHOWERS. WAVES OMITTED FOR MOSTLY ICE COVERED
AREAS.

$$

KF


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