Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 171453
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
953 AM EST WED DEC 17 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.7 INCH LOW PRESSURE SYSTEM NEAR LAKE ONTARIO THIS
MORNING WILL MOVE EAST AND OVER NOVA SCOTIA BY THURSDAY MORNING. IN
ITS WAKE...EXPECT A 30.4 INCH HIGH PRESSURE OVER THE NORTHERN PLAINS
TO DRIFT SLOWLY EAST THROUGH THE UPPER GREAT LAKES ON FRIDAY AND INTO
NEW ENGLAND THIS WEEKEND WHILE WEAKENING TO 30.3 INCHES.

LSZ162-172300-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
953 AM EST WED DEC 17 2014 /853 AM CST WED DEC 17 2014/

.REST OF TODAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES 3 TO
6 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. ISOLATED SNOW SHOWERS
IN THE EVENING. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS
THAN 10 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO
2 FEET.
.THURSDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.

$$

LSZ263-172300-
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-
953 AM EST WED DEC 17 2014

.REST OF TODAY...NORTH WINDS 15 TO 25 KNOTS. FREEZING SPRAY.
NUMEROUS SNOW SHOWERS LATE IN THE MORNING. SCATTERED SNOW SHOWERS
IN THE AFTERNOON. WAVES 4 TO 8 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. ISOLATED SNOW SHOWERS IN THE EVENING. WAVES SUBSIDING
TO 3 TO 5 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
BUILDING TO 2 TO 4 FEET.

$$

LSZ264-172300-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
953 AM EST WED DEC 17 2014

.REST OF TODAY...NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY.
NUMEROUS SNOW SHOWERS LATE IN THE MORNING. SCATTERED SNOW SHOWERS
IN THE AFTERNOON. WAVES 5 TO 8 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. ISOLATED
SNOW SHOWERS IN THE EVENING. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.

$$

LSZ265-172300-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
953 AM EST WED DEC 17 2014

.REST OF TODAY...NORTH WINDS 20 TO 30 KNOTS. SNOW SHOWERS LATE IN
THE MORNING...THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON. WAVES
6 TO 9 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS IN THE EVENING.
WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
BUILDING TO 2 TO 4 FEET.

$$

LSZ266-172300-
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-
953 AM EST WED DEC 17 2014

.REST OF TODAY...NORTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LATE IN THE MORNING. SCATTERED SNOW SHOWERS IN THE
AFTERNOON. WAVES 6 TO 9 FEET.
.TONIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHEAST 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. ISOLATED
SNOW SHOWERS IN THE EVENING. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH IN THE
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BACKING WEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ267-172300-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
953 AM EST WED DEC 17 2014

.REST OF TODAY...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS. WAVES
3 TO 6 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. FREEZING SPRAY IN THE EVENING. SCATTERED SNOW SHOWERS
IN THE EVENING. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO
3 TO 5 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST LESS THAN
10 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET.

$$
LSZ261-172300-
MAFOR 1716/
SUPERIOR WEST 12830 11820 12120 13110. FREEZING SPRAY THROUGH THIS
EVENING. SCATTERED SNOW SHOWERS THIS AFTERNOON. ISOLATED SNOW
SHOWERS THIS EVENING. WAVES 4 TO 7 FEET THROUGH TONIGHT. WAVES
SUBSIDING TO 2 TO 4 FEET THURSDAY MORNING.

SUPERIOR NORTH CENTRAL 11840 13830 12120 12110. FREEZING SPRAY
THROUGH THIS EVENING. NUMEROUS SNOW SHOWERS LATE THIS MORNING. SCATTERED
SNOW SHOWERS THIS AFTERNOON. ISOLATED SNOW SHOWERS TONIGHT. WAVES 4 TO
8 FEET THROUGH TONIGHT. WAVES SUBSIDING TO 2 TO 4 FEET THURSDAY
MORNING.

SUPERIOR SOUTH CENTRAL 12847 11840 12830 11820 11120 11110. SNOW
SHOWERS THIS AFTERNOON. SCATTERED SNOW SHOWERS THIS EVENING. WAVES 5
TO 10 FEET THROUGH TONIGHT. WAVES SUBSIDING TO 3 TO 6 FEET THURSDAY
MORNING.

SUPERIOR EAST 12847 13830 13120. SNOW SHOWERS THIS AFTERNOON.
FREEZING SPRAY THROUGH THIS EVENING. SCATTERED SNOW SHOWERS THIS
EVENING. WAVES 4 TO 8 FEET THROUGH TONIGHT. WAVES SUBSIDING TO 3 TO 5
FEET THURSDAY MORNING.

$$

MZ





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