Great Lakes Forecast
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000
FZUS63 KMQT 301010
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
510 AM EST FRI JAN 30 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.6 INCH HIGH PRESSURE STRETCHING FROM JUST NORTHWEST
OF LAKE SUPERIOR THROUGH EASTERN MINNESOTA AND WESTERN WISCONSIN WILL
SINK TO THE OHIO VALLEY TODAY...WHILE EXTENDING A 30.5 INCH RIDGE
ACROSS LAKE SUPERIOR. LOOK FOR A 30.1 INCH TROUGH OF LOW PRESSURE
ACROSS THE DAKOTAS THIS AFTERNOON TO SHIFT ACROSS LAKE SUPERIOR
TONIGHT...AND EXIT INTO SOUTHEASTERN ONTARIO SATURDAY AFTERNOON.
LARGE 31.0 INCH HIGH PRESSURE ACROSS WESTERN AND CENTRAL CANADA
SATURDAY WILL SETTLE ACROSS THE NORTHERN AND CENTRAL PLAINS STATES AT
30.7 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 29.8 INCH TROUGH WILL THEN CROSS THE UPPER GREAT
LAKES ON TUESDAY.

LSZ162-301815-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
510 AM EST FRI JAN 30 2015

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

$$

LSZ263-301815-
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-
510 AM EST FRI JAN 30 2015

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST THIS
MORNING...

.EARLY THIS MORNING...NORTH WINDS 10 TO 20 KNOTS. ISOLATED SNOW
SHOWERS. WAVES 2 TO 4 FEET.
.TODAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES SUBSIDING
TO 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...THEN
SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. SNOW SHOWERS LIKELY...THEN A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.

$$

LSZ264-301815-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
510 AM EST FRI JAN 30 2015

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY
EVENING...

.EARLY THIS MORNING...NORTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SNOW SHOWERS. WAVES 3 TO 6 FEET SUBSIDING TO 3 TO 5 FEET.
.TODAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. ISOLATED SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW IN THE EVENING...THEN SNOW LIKELY
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES
TO 35 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS IN THE MORNING. SNOW SHOWERS LIKELY IN THE
AFTERNOON. WAVES BUILDING TO 6 TO 9 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE EVENING. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
1 TO 3 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY...THEN A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. SNOW SHOWERS LIKELY...THEN A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ265-301815-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
510 AM EST FRI JAN 30 2015

.EARLY THIS MORNING...NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED
SNOW SHOWERS. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
.TODAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES
TO 35 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES BUILDING TO
4 TO 7 FEET.
.SATURDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ266-301815-
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-
510 AM EST FRI JAN 30 2015

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 10 AM EST THIS
MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY
EVENING...

.EARLY THIS MORNING...NORTH GALES TO 35 KNOTS. HEAVY FREEZING
SPRAY. NUMEROUS SNOW SHOWERS. WAVES 4 TO 8 FEET.
.TODAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 5 TO
15 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING.
NUMEROUS SNOW SHOWERS IN THE MORNING...THEN SCATTERED SNOW
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 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 20 TO 30 KNOTS BECOMING NORTH GALES
TO 40 KNOTS IN THE AFTERNOON. SNOW SHOWERS. HEAVY FREEZING SPRAY
IN THE AFTERNOON. WAVES BUILDING TO 7 TO 10 FEET.
.SATURDAY NIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. HEAVY FREEZING SPRAY IN THE EVENING.
SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES
BUILDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY...THEN A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. SNOW
SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.

$$

LSZ267-301815-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
510 AM EST FRI JAN 30 2015

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY
EVENING...

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

$$

LSZ261-301815-
MAFOR 3010/
SUPERIOR WEST...HEAVY FREEZING SPRAY WARNING IN EFFECT...11720
11710 11610 13520 11530 11630. CHANCE OF SNOW AFTER MIDNIGHT
TONIGHT. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11740 11730 11720 11610 12520 11530 11637. HEAVY FREEZING SPRAY
EARLY THIS MORNING. SCATTERED SNOW SHOWERS EARLY THIS MORNING.
CHANCE OF SNOW AFTER MIDNIGHT TONIGHT. WAVES 1 TO 6 FEET.

SUPERIOR SOUTH CENTRAL...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11747 11740 11630 11620 11510 12410 11510. HEAVY FREEZING SPRAY
EARLY THIS MORNING. SCATTERED SNOW SHOWERS THIS MORNING. CHANCE
OF SNOW LATE TONIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 1 TO 3 FEET
TODAY. WAVES 2 FEET OR LESS TONIGHT.

SUPERIOR EAST...HEAVY FREEZING SPRAY WARNING IN EFFECT...11847
11837 11727 13620 11520 11537. HEAVY FREEZING SPRAY THIS MORNING.
SCATTERED SNOW SHOWERS THIS AFTERNOON...AND AGAIN AFTER MIDNIGHT.
CHANCE OF SNOW LATE TONIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 1 TO 3
FEET TODAY. WAVES 1 TO 3 FEET TONIGHT.

$$

KF


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