Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 240854
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
354 AM EST TUE FEB 24 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.2 INCH LOW PRESSURE SYSTEM OVER FAR NORTHERN
ONTARIO THIS MORNING WILL MOVE TO NEAR JAMES BAY THIS EVENING...
DRAGGING A COLD FRONT ACROSS LAKE SUPERIOR TODAY. AS THE LOW DRIFTS
INTO QUEBEC ON WEDNESDAY AND WEAKENS TO 29.5 INCHES...EXPECT A 30.7
INCH HIGH PRESSURE SYSTEM TO BUILD INTO SOUTH CENTRAL CANADA. THIS
HIGH WILL SETTLE INTO THE NORTHERN PLAINS ON THURSDAY AND THEN DRIFT
INTO THE LOWER GREAT LAKES ON FRIDAY AND THE MID ATLANTIC STATES ON
SATURDAY.

LSZ162-241700-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
354 AM EST TUE FEB 24 2015

...GALE WARNING IN EFFECT UNTIL 7 AM EST /6 AM CST/ THIS
MORNING...

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

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

$$

LSZ263-241700-
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-
354 AM EST TUE FEB 24 2015

...GALE WARNING IN EFFECT UNTIL 7 AM EST THIS MORNING...

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

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

$$

LSZ264-241700-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
354 AM EST TUE FEB 24 2015

...GALE WARNING IN EFFECT UNTIL 7 AM EST THIS MORNING...

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

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

$$

LSZ265-241700-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
354 AM EST TUE FEB 24 2015

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

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

$$

LSZ266-241700-
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-
354 AM EST TUE FEB 24 2015

...GALE WARNING IN EFFECT UNTIL 7 AM EST THIS MORNING...

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

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

$$

LSZ267-241700-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
354 AM EST TUE FEB 24 2015

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

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

$$

LSZ261-241700-
MAFOR 2410/
SUPERIOR WEST...GALE WARNING IN EFFECT...11550 11630 12750 11740
11720 12710. CHANCE OF SNOW THIS MORNING. WAVES OMITTED FOR MOSTLY
ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11557 11647 13740
11730 12720. CHANCE OF SNOW SHOWERS THIS AFTERNOON. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11557 11637 11747
12740 11730 12720. CHANCE OF SNOW SHOWERS AFTER MIDNIGHT TONIGHT.
WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST...GALE WARNING IN EFFECT...11557 11547 11747 13750
11740 11730. CHANCE OF SNOW SHOWERS LATE TONIGHT. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

$$

JLB


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