Great Lakes Forecast
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000
FZUS63 KMQT 212031
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
331 PM EST SUN DEC 21 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A HIGH PRESSURE RIDGE OF 30.4 INCHES FROM QUEBEC TO OHIO
WILL SLIDE EASTWARD OVER NEW ENGLAND MONDAY. LOW PRESSURE OF 29.3
INCHES OVER THE NORTHERN PLAINS WILL MOVE TO THE UPPER MISSISSIPPI
RIVER VALLEY LATE MONDAY BEFORE STALLING OUT OVER THE UPPER GREAT
LAKES ON TUESDAY. ANOTHER LOW PRESSURE SYSTEM OF 29.6 INCHES FORMING
OVER TEXAS ON MONDAY WILL TRACK TO LOWER MICHIGAN TUESDAY NIGHT INTO
WEDNESDAY MORNING THEN QUICKLY DEEPEN TO 29.1 INCHES AS IT REACHES
LAKE HURON ON WEDNESDAY EVENING. EXPECT THE LOW TO CONTINUE
DEEPENING TO 28.7 INCHES AS IT LIFTS TO JAMES BAY BY THURSDAY NIGHT.
A LOW PRESSURE OF 29.5 INCHES OVER THE SOUTHERN PLAINS THURSDAY
EVENING WILL REACH EASTERN ONTARIO FRIDAY EVENING.

LSZ162-220400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
331 PM EST SUN DEC 21 2014 /231 PM CST SUN DEC 21 2014/

.LATE THIS AFTERNOON...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW. WAVES 2 TO 4 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. A SLIGHT
CHANCE OF RAIN AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN AND
SNOW. WAVES 2 TO 4 FEET.
.MONDAY NIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW LIKELY. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 3 TO 5 FEET.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SNOW LIKELY. WAVES BUILDING TO 4 TO
7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ263-220400-
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-
331 PM EST SUN DEC 21 2014

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

$$

LSZ264-220400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
331 PM EST SUN DEC 21 2014

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 4 TO 7 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN AFTER
MIDNIGHT. WAVES SUBSIDING TO 3 TO 6 FEET...THEN BUILDING TO 5 TO
8 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS BACKING SOUTHEAST IN THE
AFTERNOON. A CHANCE OF RAIN AND SNOW. WAVES SUBSIDING TO 4 TO
8 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS BACKING EAST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES 4 TO 8 FEET.
.TUESDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SNOW LIKELY. WAVES 5 TO 8 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO
2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO
7 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW. FREEZING SPRAY. WAVES BUILDING TO
4 TO 7 FEET.

$$

LSZ265-220400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
331 PM EST SUN DEC 21 2014

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 3 TO 5 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS BACKING SOUTHEAST IN THE
AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW. WAVES 3 TO 6 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW IN THE EVENING...
THEN SNOW LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO 5 FEET...
THEN BUILDING TO 5 TO 8 FEET.
.TUESDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SNOW LIKELY...POSSIBLY MIXED WITH
RAIN. WAVES SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING
TO CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 4 TO 7 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW...THEN SNOW LIKELY. WAVES BUILDING TO
4 TO 7 FEET.

$$

LSZ266-220400-
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-
331 PM EST SUN DEC 21 2014

.LATE THIS AFTERNOON...SOUTH WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW. WAVES 4 TO 7 FEET.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS. SNOW LIKELY. A SLIGHT
CHANCE OF RAIN AFTER MIDNIGHT. WAVES BUILDING TO 5 TO 9 FEET.
.MONDAY...SOUTH WINDS 20 TO 30 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW.
WAVES 5 TO 8 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS BACKING EAST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW IN THE EVENING...THEN SNOW
LIKELY...POSSIBLY MIXED WITH RAIN AFTER MIDNIGHT. WAVES SUBSIDING
TO 4 TO 8 FEET.
.TUESDAY...EAST WINDS 15 TO 25 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW LIKELY...POSSIBLY MIXED WITH
RAIN. WAVES SUBSIDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 5 TO 8 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 6 TO
9 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW...THEN SNOW LIKELY. WAVES SUBSIDING TO
2 TO 4 FEET...THEN BUILDING TO 5 TO 8 FEET.

$$

LSZ267-220400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
331 PM EST SUN DEC 21 2014

.LATE THIS AFTERNOON...SOUTH WINDS 20 TO 30 KNOTS. A SLIGHT
CHANCE OF SNOW. WAVES 3 TO 5 FEET.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.MONDAY...SOUTH WINDS 20 TO 30 KNOTS BACKING SOUTHEAST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES 3 TO 6 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE
OF SNOW IN THE EVENING...THEN SNOW LIKELY AFTER MIDNIGHT. WAVES
3 TO 6 FEET.
.TUESDAY...EAST WINDS 20 TO 30 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS IN THE AFTERNOON. SNOW LIKELY IN THE MORNING. A CHANCE
OF RAIN. A SLIGHT CHANCE OF SNOW IN THE AFTERNOON. WAVES
SUBSIDING TO 3 TO 5 FEET.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES BUILDING TO 5 TO 8 FEET.
.THURSDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 6 TO
9 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW...THEN
SNOW LIKELY. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO
5 TO 8 FEET.

$$

LSZ261-220400-
MAFOR 2122/
SUPERIOR WEST 11320 13420 14320. CHANCE OF SNOW THROUGH TONIGHT.
SLIGHT CHANCE OF RAIN OVERNIGHT. CHANCE OF RAIN AND SNOW MONDAY.
WAVES 2 TO 4 FEET.

SUPERIOR NORTH CENTRAL 13437 14430 11330. CHANCE OF SNOW LATE THIS
AFTERNOON. CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN OVERNIGHT. CHANCE
OF RAIN AND SNOW MONDAY. WAVES 5 TO 8 FEET.

SUPERIOR SOUTH CENTRAL 11437 13447 13430 11330. CHANCE OF SNOW LATE
THIS AFTERNOON. CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN OVERNIGHT
AND MONDAY. WAVES 3 TO 6 FEET.

SUPERIOR EAST 12440 12447 12440 12330. CHANCE OF SNOW THIS EVENING.
CHANCE OF SNOW AND A SLIGHT CHANCE OF RAIN MONDAY AFTERNOON. WAVES 5
TO 8 FEET.

$$

MZ





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