Great Lakes Forecast
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000
FZUS63 KMQT 230252
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
952 PM EST MON DEC 22 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.4 INCH LOW PRESSURE CENTERED OVER IOWA WILL REACH
SOUTHERN WISCONSIN TUESDAY MORNING. THIS LOW WILL THEN MOVE INTO THE
EASTERN UPPER GREAT LAKES AND WEAKEN TUESDAY AFTERNOON AND TUESDAY
NIGHT. ANOTHER LOW PRESSURE SYSTEM OF 29.4 INCHES WILL THEN DEVELOP
OVER THE TENNESSEE VALLEY ON WEDNESDAY AND LIFT NORTHWARD AND
INTENSIFY TO 28.9 INCHES OVER THE EASTERN GREAT LAKES BY WEDNESDAY
NIGHT. THE LOW WILL CONTINUE INTO QUEBEC AND WILL BRIEFLY BE REPLACED
BY HIGH PRESSURE OF 29.9 INCHES OVER THE UPPER GREAT LAKES THURSDAY
INTO EARLY FRIDAY. ANOTHER QUICK MOVING LOW PRESSURE SYSTEM OF 29.5
INCHES WILL DEVELOP OVER THE MIDWEST AND LIFT NORTHEASTWARD ACROSS
EASTERN UPPER MICHIGAN AND INTO ONTARIO SATURDAY MORNING.

LSZ162-231100-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
952 PM EST MON DEC 22 2014 /852 PM CST MON DEC 22 2014/

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN LATE IN THE
EVENING. A CHANCE OF SNOW. WAVES CALM TO 2 FEET BUILDING TO 2 TO
4 FEET.
.TUESDAY...NORTHEAST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO
35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO 5 TO
8 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING
TO 3 TO 6 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 2 TO
4 FEET.

$$

LSZ263-231100-
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-
952 PM EST MON DEC 22 2014

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 3 TO 5 FEET.
.TUESDAY...EAST WINDS 20 TO 30 KNOTS BACKING NORTHEAST IN THE
AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE AFTERNOON. A
CHANCE OF SNOW. WAVES BUILDING TO 5 TO 8 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 4 TO 7 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. FREEZING
SPRAY. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.

$$

LSZ264-231100-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
952 PM EST MON DEC 22 2014

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET.
.TUESDAY...EAST WINDS 20 TO 30 KNOTS BACKING NORTHEAST IN THE
AFTERNOON. A CHANCE OF SNOW. WAVES 4 TO 7 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. SNOW LIKELY IN
THE EVENING...THEN A CHANCE OF SNOW AFTER MIDNIGHT. WAVES
SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTHEAST WINDS 15 TO 25 KNOTS BACKING NORTH IN THE
AFTERNOON. A CHANCE OF SNOW. WAVES 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES 3 TO 6 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 5 FEET.

$$

LSZ265-231100-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
952 PM EST MON DEC 22 2014

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS BACKING EAST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 3 TO 6 FEET.
.TUESDAY...EAST WINDS 20 TO 30 KNOTS BACKING NORTHEAST IN THE
AFTERNOON. SNOW. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. SNOW LIKELY IN THE EVENING. A
SLIGHT CHANCE OF RAIN. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW AND A SLIGHT CHANCE
OF DRIZZLE. A SLIGHT CHANCE OF FREEZING DRIZZLE IN THE AFTERNOON.
WAVES BUILDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 3 TO 5 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO 25 KNOTS.
A CHANCE OF SNOW...THEN SNOW LIKELY. WAVES BUILDING TO 3 TO
6 FEET.
.SATURDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
FREEZING SPRAY. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO
3 TO 6 FEET.

$$

LSZ266-231100-
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-
952 PM EST MON DEC 22 2014

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET.
.TUESDAY...EAST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF RAIN IN
THE MORNING. SNOW. WAVES 4 TO 7 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN AND
DRIZZLE. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF RAIN IN THE
MORNING. A CHANCE OF SNOW AND A SLIGHT CHANCE OF DRIZZLE. A
SLIGHT CHANCE OF FREEZING DRIZZLE IN THE AFTERNOON. WAVES
3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 4 TO 7 FEET...
THEN SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
2 TO 4 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO 25 KNOTS.
A CHANCE OF SNOW...THEN SNOW LIKELY. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 3 TO 6 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 5 TO 8 FEET.

$$

LSZ267-231100-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
952 PM EST MON DEC 22 2014

.REST OF TONIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW. WAVES 3 TO 6 FEET.
.TUESDAY...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW. A SLIGHT CHANCE OF RAIN IN THE
AFTERNOON. WAVES 3 TO 5 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN...
SNOW AND DRIZZLE. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW...POSSIBLY MIXED WITH
RAIN AND DRIZZLE. A SLIGHT CHANCE OF FREEZING DRIZZLE IN THE
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A CHANCE
OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
3 TO 5 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BACKING WEST. A CHANCE
OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES BUILDING TO
5 TO 8 FEET.

$$
LSZ261-231100-
MAFOR 2304/
SUPERIOR WEST 11220 11230 11240 12147 12140 19150 11130. CHANCE OF
SNOW. WAVES 2 TO 4 FEET OVERNIGHT. WAVES 4 TO 6 FEET BUILDING TO 6 TO
9 FEET TUESDAY.

SUPERIOR NORTH CENTRAL 11320 11330 11230 12240 11140 12137. SLIGHT
CHANCE OF SNOW OVERNIGHT. CHANCE OF SNOW TUESDAY. WAVES 3 TO 6 FEET
OVERNIGHT. WAVES 5 TO 8 FEET TUESDAY AND TUESDAY EVENING.

SUPERIOR SOUTH CENTRAL 12330 14247 11137 11130. CHANCE OF SNOW
OVERNIGHT. SNOW LIKELY TUESDAY EVENING. WAVES 3 TO 6 FEET OVERNIGHT.
WAVES 5 TO 8 FEET TUESDAY AND TUESDAY EVENING.

SUPERIOR EAST 11330 11340 11240 13247 11237 11230. SLIGHT CHANCE OF
SNOW OVERNIGHT. CHANCE OF SNOW IN THE MORNING. SLIGHT CHANCE OF RAIN
AND DRIZZLE TUESDAY EVENING. WAVES 4 TO 7 FEET.

$$

PETRO





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