Great Lakes Forecast
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000
FZUS63 KMQT 222106
GLFLS

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

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A LOW PRESSURE TROUGH OF 29.5 INCHES EXTENDING FROM SOUTH
DAKOTA TO MISSOURI WILL CONSOLIDATE INTO A LOW PRESSURE SYSTEM OF
29.4 INCHES OVER SOUTHERN WISCONSIN BY 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.

LSZ162-230515-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
406 PM EST MON DEC 22 2014 /306 PM CST MON DEC 22 2014/

.LATE THIS AFTERNOON...SOUTHEAST WINDS 10 TO 20 KNOTS. PATCHY
FOG. A SLIGHT CHANCE OF RAIN AND SNOW. WAVES 1 TO 3 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN IN THE EVENING. A CHANCE
OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET...THEN 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.

$$

LSZ263-230515-
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-
406 PM EST MON DEC 22 2014

.LATE THIS AFTERNOON...SOUTHEAST WINDS 10 TO 20 KNOTS. PATCHY
FOG. A SLIGHT CHANCE OF RAIN AND SNOW. WAVES 3 TO 6 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 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. 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.

$$

LSZ264-230515-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
406 PM EST MON DEC 22 2014

.LATE THIS AFTERNOON...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A
SLIGHT CHANCE OF RAIN AND SNOW. WAVES 4 TO 8 FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW.
WAVES SUBSIDING TO 3 TO 5 FEET...THEN 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.

$$

LSZ265-230515-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
406 PM EST MON DEC 22 2014

.LATE THIS AFTERNOON...SOUTHEAST WINDS 15 TO 25 KNOTS. PATCHY
FOG. WAVES 3 TO 6 FEET.
.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.

$$

LSZ266-230515-
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-
406 PM EST MON DEC 22 2014

.LATE THIS AFTERNOON...SOUTHEAST WINDS 15 TO 25 KNOTS. WAVES 4 TO
8 FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW.
WAVES 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.

$$

LSZ267-230515-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
406 PM EST MON DEC 22 2014

.LATE THIS AFTERNOON...SOUTHEAST WINDS 15 TO 25 KNOTS. WAVES 3 TO
5 FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 3 TO 5 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.

$$

LSZ261-230515-
MAFOR 2222/
SUPERIOR WEST 11310 11210 11220 11230 11240 12147 11140 19150.
PATCHY FOG LATE THIS AFTERNOON. SLIGHT CHANCE OF RAIN THIS EVENING.
CHANCE OF SNOW TONIGHT. CHANCE OF SNOW TUESDAY. WAVES 1 TO 4 FEET
TONIGHT. WAVES 4 TO 6 FEET BUILDING TO 6 TO 9 FEET TUESDAY.

SUPERIOR NORTH CENTRAL 12330 11320 11330 11230 12240 11140. PATCHY
FOG LATE THIS AFTERNOON. SLIGHT CHANCE OF RAIN LATE THIS AFTERNOON.
SLIGHT CHANCE OF SNOW OVERNIGHT. CHANCE OF SNOW TUESDAY. WAVES 3 TO
7 FEET TONIGHT. WAVES 4 TO 7 FEET BUILDING TO 5 TO 8 FEET TUESDAY.

SUPERIOR SOUTH CENTRAL 14330 14247. CHANCE OF SNOW TONIGHT. WAVES 3
TO 6 FEET TONIGHT. WAVES 4 TO 7 FEET BUILDING TO 5 TO 8 FEET
TUESDAY.

SUPERIOR EAST 13330 11340 11240 13247. SLIGHT CHANCE OF SNOW
OVERNIGHT. CHANCE OF SNOW IN THE MORNING. WAVES 4 TO 7 FEET.

$$

PETRO





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