Great Lakes Forecast
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FZUS63 KMQT 302104
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
404 PM EST FRI JAN 30 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A BROAD 30.5 INCH HIGH PRESSURE RIDGE STRETCHING FROM
JUST NORTHWEST OF LAKE HURON THROUGH THE OHIO VALLEY TONIGHT WILL
MOVE SOUTHEAST TO THE CAROLINA COAST ON SATURDAY NIGHT. LOOK FOR A
30.1 INCH TROUGH OF LOW PRESSURE ACROSS MINNESOTA THIS AFTERNOON TO
SHIFT ACROSS LAKE SUPERIOR TONIGHT...AND EXIT INTO SOUTHEASTERN
ONTARIO SATURDAY AFTERNOON. A LARGE 30.9 INCH HIGH PRESSURE ACROSS
WESTERN AND CENTRAL CANADA SATURDAY WILL SETTLE ACROSS THE NORTHERN
AND CENTRAL PLAINS STATES AT 30.6 INCHES SUNDAY INTO SUNDAY NIGHT.
EXPECT A 30.5 INCH RIDGE EXTENDING FROM THIS HIGH ACROSS LAKE
SUPERIOR SUNDAY MORNING TO SLOWLY WEAKEN TO 30.2 INCHES BY MONDAY
AFTERNOON AS THE AREA OF HIGH PRESSURE DRIFTS ACROSS THE OHIO
VALLEY...AND THEN THE MID ATLANTIC STATES TUESDAY. A 29.9 INCH
TROUGH WILL THEN CROSS THE UPPER GREAT LAKES ON TUESDAY.

LSZ162-310515-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
404 PM EST FRI JAN 30 2015

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES SUBSIDING
TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. ISOLATED SNOW SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. SCATTERED
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.

$$

LSZ263-310515-
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-
404 PM EST FRI JAN 30 2015

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO
4 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SCATTERED SNOW SHOWERS.
WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. SCATTERED
SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. SCATTERED SNOW SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. SNOW
SHOWERS...THEN SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET...
THEN SUBSIDING TO 2 TO 4 FEET.

$$

LSZ264-310515-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
404 PM EST FRI JAN 30 2015

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM SATURDAY AFTERNOON
THROUGH LATE SATURDAY NIGHT...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY
EVENING...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. SCATTERED SNOW
SHOWERS IN THE MORNING. NUMEROUS SNOW SHOWERS IN THE AFTERNOON.
WAVES BUILDING TO 5 TO 8 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE EVENING.
SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SCATTERED SNOW SHOWERS.
WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. SNOW
SHOWERS...THEN SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. NUMEROUS SNOW SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...
THEN SUBSIDING TO 3 TO 5 FEET.

$$

LSZ265-310515-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
404 PM EST FRI JAN 30 2015

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. NUMEROUS SNOW SHOWERS IN THE
EVENING...THEN SCATTERED SNOW SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. SCATTERED
SNOW SHOWERS...THEN NUMEROUS SNOW SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.

$$

LSZ266-310515-
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-
404 PM EST FRI JAN 30 2015

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM SATURDAY AFTERNOON
THROUGH LATE SATURDAY NIGHT...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY
EVENING...

.LATE THIS AFTERNOON...WEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF SNOW SHOWERS. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH GALES
TO 35 KNOTS IN THE AFTERNOON. SNOW SHOWERS. HEAVY FREEZING SPRAY
IN THE AFTERNOON. WAVES BUILDING TO 5 TO 8 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE
EVENING. NUMEROUS SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS. NUMEROUS SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. NUMEROUS SNOW
SHOWERS IN THE EVENING...THEN SCATTERED SNOW SHOWERS AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS. NUMEROUS SNOW SHOWERS IN THE
MORNING...THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON. WAVES
BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY.
SCATTERED SNOW SHOWERS. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. SNOW
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING
SPRAY. SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.

$$

LSZ267-310515-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
404 PM EST FRI JAN 30 2015

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM SATURDAY AFTERNOON
THROUGH LATE SATURDAY NIGHT...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY
EVENING...

.LATE THIS AFTERNOON...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. SNOW SHOWERS. HEAVY FREEZING SPRAY IN
THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE
EVENING. NUMEROUS SNOW SHOWERS IN THE EVENING...THEN ISOLATED
SNOW SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST IN THE
AFTERNOON. SCATTERED SNOW SHOWERS IN THE MORNING. NUMEROUS SNOW
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. NUMEROUS SNOW SHOWERS. WAVES SUBSIDING
TO CALM TO 2 FEET...THEN BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY. SCATTERED
SNOW SHOWERS. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS. SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. HEAVY FREEZING SPRAY. SNOW SHOWERS. WAVES BUILDING TO
6 TO 9 FEET...THEN SUBSIDING TO 3 TO 6 FEET.

$$

LSZ261-310515-
MAFOR 3022/
SUPERIOR WEST 12520 11530 11630 11720 11730 12820. CHANCE OF SNOW
THIS EVENING. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL...GALE WATCH AND HEAVY FREEZING SPRAY WARNING
IN EFFECT...13520 11630 11730 11742 12852. CHANCE OF SNOW TONIGHT.
WAVES 1 TO 4 FEET TONIGHT BUILDING TO 5 TO 8 FEET SATURDAY.

SUPERIOR SOUTH CENTRAL...GALE WATCH AND HEAVY FREEZING SPRAY WARNING
IN EFFECT...11510 11410 11420 11520 11630 11632 12742. CHANCE OF
SNOW OVERNIGHT. WAVES 2 FEET OR LESS TONIGHT. WAVES 1 TO 3 FEET
BUILDING TO 4 TO 7 FEET SATURDAY.

SUPERIOR EAST...GALE WATCH AND HEAVY FREEZING SPRAY WARNING IN
EFFECT...11610 13520 11537 11647 12742. CHANCE OF SNOW SHOWERS THIS
EVENING...THEN CHANCE OF SNOW OVERNIGHT. WAVES 1 TO 3 FEET TONIGHT.
WAVES 2 TO 4 FEET BUILDING TO 4 TO 7 FEET SATURDAY.

$$

RJT



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