Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 131447
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
947 AM EST SAT DEC 13 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...HIGH PRESSURE OF 30.4 INCHES OVER THE TENNESSEE VALLEY
AND AN ASSOCIATED 30.2 INCH RIDGE EXTENDING NORTHWARD ACROSS THE
UPPER GREAT LAKES WILL REMAIN NEARLY STATIONARY TODAY INTO TONIGHT.
MEANWHILE...A 29.7 INCH LOW IN EASTERN MONTANA WILL SHIFT EAST INTO
THE DAKOTAS AS IT WEAKENS AND BECOMES AN ELONGATED 29.8 INCH TROUGH
STRETCHING SOUTH THROUGH THE CENTRAL PLAINS. THE RIDGE WILL PUSH OVER
THE LOWER GREAT LAKES ON SUNDAY AS THE TROUGH IN THE DAKOTAS MOVES
INTO MINNESOTA. EXPECT THE TROUGH TO BEGIN CROSSING LAKE SUPERIOR ON
MONDAY...WHILE A 29.6 INCH LOW PRESSURE SYSTEM LIFTS NORTHEAST OUT OF
THE CENTRAL PLAINS. THIS LOW WILL MOVE THROUGH NORTHERN LOWER
MICHIGAN ON TUESDAY AND REACH QUEBEC ON WEDNESDAY. BEHIND THIS
LOW...A 30.1 INCH TROUGH WILL STRETCH WEST ACROSS LAKE SUPERIOR ON
WEDNESDAY...WHILE A 30.4 INCH HIGH BUILDS INTO NORTHWEST MINNESOTA.

LSZ162-132300-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
947 AM EST SAT DEC 13 2014 /847 AM CST SAT DEC 13 2014/

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS. PATCHY FOG.
WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
DRIZZLE. PATCHY FOG AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY...EAST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS IN THE AFTERNOON. A CHANCE OF DRIZZLE. WAVES CALM TO
2 FEET.
.SUNDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING WEST LESS THAN
10 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND DRIZZLE. WAVES CALM
TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH IN THE
AFTERNOON. A CHANCE OF RAIN. PATCHY FOG IN THE AFTERNOON. WAVES
CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 3 TO
6 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF SNOW. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ263-132300-
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-
947 AM EST SAT DEC 13 2014

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. PATCHY FOG. WAVES 4 TO 7 FEET
SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST IN THE
AFTERNOON. A CHANCE OF DRIZZLE. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST LESS
THAN 10 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND DRIZZLE. WAVES
CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH IN THE
AFTERNOON. A CHANCE OF RAIN. PATCHY FOG IN THE AFTERNOON. WAVES
CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW LIKELY. WAVES BUILDING TO 4 TO
7 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. WAVES
4 TO 7 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.

$$

LSZ264-132300-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
947 AM EST SAT DEC 13 2014

.REST OF TODAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. PATCHY FOG. WAVES 4 TO 7 FEET
SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES SUBSIDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE IN THE AFTERNOON. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND DRIZZLE. WAVES
BUILDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF RAIN. PATCHY FOG IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. RAIN LIKELY IN THE EVENING...THEN SNOW
LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 4 TO 8 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.

$$

LSZ265-132300-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
947 AM EST SAT DEC 13 2014

.REST OF TODAY...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES 1 TO
3 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES SUBSIDING
TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN AND
DRIZZLE. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF RAIN. PATCHY FOG IN THE AFTERNOON. WAVES
CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. RAIN LIKELY IN THE EVENING...THEN
SNOW LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 4 TO 8 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.

$$

LSZ266-132300-
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-
947 AM EST SAT DEC 13 2014

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. PATCHY FOG. WAVES 3 TO 6 FEET
SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES SUBSIDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE IN THE AFTERNOON. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. A CHANCE OF RAIN AND DRIZZLE. WAVES BUILDING TO
2 TO 4 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO 15 KNOTS
IN THE AFTERNOON. A CHANCE OF RAIN. PATCHY FOG IN THE AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT. RAIN LIKELY. SNOW LIKELY AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. SNOW LIKELY. WAVES BUILDING TO 5 TO 9 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET.

$$

LSZ267-132300-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
947 AM EST SAT DEC 13 2014

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS IN THE AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET
BUILDING TO 3 TO 5 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE IN THE AFTERNOON. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND DRIZZLE.
WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. A CHANCE OF RAIN. PATCHY FOG IN THE AFTERNOON.
WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. RAIN LIKELY. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. SNOW LIKELY. WAVES BUILDING TO 4 TO 7 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.

$$
LSZ261-132300-
MAFOR 1316/
SUPERIOR WEST 12620 13520 12510 11400. PATCHY FOG THIS AFTERNOON
THROUGH TONIGHT. SLIGHT CHANCE OF DRIZZLE OVERNIGHT THROUGH SUNDAY
MORNING. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 13620 14610 11500. PATCHY FOG THIS AFTERNOON
THROUGH SUNDAY MORNING. WAVES 2 TO 7 FEET.

SUPERIOR SOUTH CENTRAL 12620 14610 11610 11400. PATCHY FOG THIS
AFTERNOON AND OVERNIGHT. WAVES 1 TO 3 FEET.

SUPERIOR EAST 11610 11620 14610 11610 11600. PATCHY FOG THIS
AFTERNOON. WAVES 2 TO 5 FEET.

$$

KEC




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