Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 252056
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
356 PM EST SUN JAN 25 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.2 INCH HIGH PRESSURE ACROSS NORTHERN LAKE SUPERIOR
THIS EVENING WILL SHIFT INTO QUEBEC TONIGHT...AS 29.6 INCH LOW
PRESSURE SHIFTS FROM THE MID MISSISSIPPI VALLEY INTO THE
SOUTHEASTERN UNITED STATES. EXPECT 29.4 INCH LOW PRESSURE OVER
CENTRAL CANADA THIS EVENING TO SINK ACROSS WESTERN LAKE SUPERIOR
MONDAY AFTERNOON AND EVENING AT 29.8 INCHES. A QUICK 30.2 INCH RIDGE
WILL THEN SLIDE IN FROM THE WEST ON TUESDAY...AND INTO THE OHIO
VALLEY AT 30.3 INCHES ON WEDNESDAY. ORGANIZING 29.8 INCH LOW PRESSURE
ACROSS THE PLAINS STATES WEDNESDAY WILL PUSH ACROSS FAR SOUTHERN LAKE
MICHIGAN LATE WEDNESDAY NIGHT INTO THURSDAY MORNING...WHILE SLIDING A
30.0 INCH TROUGH ACROSS LAKE SUPERIOR. THE LOW WILL THEN TRACK ACROSS
THE LOWER GREAT LAKES STATES THURSDAY...WITH THE TROUGH OVER LAKE
SUPERIOR WEAKENING TO 30.2 INCHES. AS THE LOW SHIFTS FARTHER
EAST...HIGH PRESSURE OF 30.4 INCHES WILL BUILD ACROSS THE PLAINS
FRIDAY MORNING AND INTO THE UPPER GREAT LAKES REGION FRIDAY
AFTERNOON.

LSZ162-260500-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
356 PM EST SUN JAN 25 2015

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

$$

LSZ263-260500-
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-
356 PM EST SUN JAN 25 2015

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

$$

LSZ264-260500-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
356 PM EST SUN JAN 25 2015

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

$$

LSZ265-260500-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
356 PM EST SUN JAN 25 2015

.LATE THIS AFTERNOON...NORTHEAST WINDS LESS THAN 10 KNOTS.
ISOLATED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW IN THE
MORNING...THEN SNOW LIKELY. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES
CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING
NORTHEAST AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES CALM TO
2 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-260500-
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-
356 PM EST SUN JAN 25 2015

.LATE THIS AFTERNOON...NORTHEAST WINDS LESS THAN 10 KNOTS.
ISOLATED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO 25 KNOTS
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW IN THE
MORNING...THEN SNOW LIKELY. FREEZING SPRAY IN THE AFTERNOON. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW SHOWERS IN
THE MORNING. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES BUILDING TO
1 TO 3 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
HEAVY FREEZING SPRAY. WAVES BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING
TO 2 TO 4 FEET.

$$

LSZ267-260500-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
356 PM EST SUN JAN 25 2015

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

$$

LSZ261-260500-
MAFOR 2522/
SUPERIOR WEST 11300 11410 11520 11530 12437 11430 11520. CHANCE
OF SNOW OVERNIGHT AND LATE MONDAY. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11300 11400 12420 12430 12437. CHANCE OF
SNOW EARLY MONDAY AFTERNOON. WAVES 1 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 11100 11400 12420 11430 12440 11447.
CHANCE OF SNOW EARLY MONDAY AFTERNOON. WAVES 2 FEET OR LESS
TONIGHT BUILDING TO 2 TO 4 FEET MONDAY.

SUPERIOR EAST 11100 11200 11410 11420 11430 13440. CHANCE OF SNOW
LATE MONDAY. WAVES 1 TO 3 FEET TONIGHT BUILDING TO 3 TO 6 FEET
MONDAY.

$$

KLUBER


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