Great Lakes Forecast
Issued by NWS

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719
FZUS63 KMQT 130900
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
400 AM EST SAT FEB 13 2016

.SYNOPSIS...A 29.9 INCH LOW PRESSURE TROUGH OVER EASTERN LAKE
SUPERIOR WILL GRADUALLY WEAKEN TODAY AS A 30.8 INCH HIGH PRESSURE
BUILDS OVER THE WESTERN GREAT LAKES THIS EVENING AND WEAKENS TO 30.6
INCHES. EXPECT THIS HIGH TO MOVE EAST INTO THE MID ATLANTIC STATES
ON SUNDAY AND WEAKEN FURTHER TO 30.4 INCHES AHEAD OF A 29.8 INCH LOW
PRESSURE TROUGH MOVING EAST ACROSS SOUTH CENTRAL CANADA AND THE
NORTHERN PLAINS. THIS TROUGH WILL MOVE INTO THE WESTERN GREAT LAKES
ON MONDAY TO THE SOUTH OF A 29.5 INCH LOW PRESSURE DRIFTING ACROSS
CENTRAL CANADA TOWARD HUDSON BAY. LOOK FOR THIS LOW TO SHIFT INTO
QUEBEC ON TUESDAY AND DRAG ANOTHER 29.8 INCH LOW PRESSURE TROUGH
INTO THE UPPER GREAT LAKES. A 30.3 INCH HIGH PRESSURE OVER SOUTH
CENTRAL CANADA ON TUESDAY WILL MOVE OVER THE WESTERN GREAT LAKES ON
WEDNESDAY.

LSZ162-131700-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
400 AM EST SAT FEB 13 2016 /300 AM CST SAT FEB 13 2016/

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

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ263-131700-
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-
400 AM EST SAT FEB 13 2016

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 10 AM EST THIS
MORNING...

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

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ264-131700-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
400 AM EST SAT FEB 13 2016

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

.EARLY THIS MORNING...NORTHWEST WINDS 20 TO 30 KNOTS. A FEW GALE
FORCE GUSTS TO 35 KNOTS. HEAVY FREEZING SPRAY. NUMEROUS SNOW
SHOWERS. WAVES 5 TO 8 FEET.
.TODAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING.
SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH AFTER
MIDNIGHT. ISOLATED SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SNOW IN
THE MORNING. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A
CHANCE OF SNOW. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO
3 TO 6 FEET.
.MONDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW.
WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. A CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING
TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS VEERING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-131700-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
400 AM EST SAT FEB 13 2016

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS EVENING...

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

$$

LSZ266-131700-
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-
400 AM EST SAT FEB 13 2016

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS EVENING...

.EARLY THIS MORNING...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE
FORCE GUSTS TO 35 KNOTS. HEAVY FREEZING SPRAY. SNOW SHOWERS.
WAVES 8 TO 11 FEET.
.TODAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS THIS MORNING. HEAVY
FREEZING SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. FREEZING SPRAY IN THE
AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A
CHANCE OF SNOW. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO
3 TO 6 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
2 TO 4 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
FREEZING SPRAY. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO
3 TO 6 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ267-131700-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
400 AM EST SAT FEB 13 2016

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS EVENING...

.EARLY THIS MORNING...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE
FORCE GUSTS TO 35 KNOTS. HEAVY FREEZING SPRAY. SNOW SHOWERS.
WAVES 6 TO 10 FEET.
.TODAY...NORTH WINDS 20 TO 30 KNOTS IN THE AFTERNOON. A FEW GALE
FORCE GUSTS TO 35 KNOTS THIS MORNING. HEAVY FREEZING SPRAY. SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS VEERING SOUTH AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF
SNOW. WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY...SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
1 TO 3 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. FREEZING SPRAY. WAVES
BUILDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ261-131700-
MAFOR 1310/
SUPERIOR WEST...HEAVY FREEZING SPRAY WARNING IN EFFECT...12742
11731 11620 11610 11510 11410 11420. WAVES 1 TO 6 FEET.

SUPERIOR NORTH CENTRAL...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11747 19757 11747 11742 12731 11720 11600 11510. HEAVY FREEZING
SPRAY THIS MORNING. SCATTERED SNOW SHOWERS FROM LATE MORNING ON
TODAY. WAVES 3 TO 8 FEET TODAY SUBSIDING TO 4 FEET OR LESS TONIGHT.

SUPERIOR SOUTH CENTRAL...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11747 19757 13747 11731 11720 11710 11520. HEAVY FREEZING SPRAY
TODAY. SCATTERED SNOW SHOWERS LATE TODAY AND THIS EVENING. WAVES
6 TO 10 FEET SUBSIDING TO 3 TO 6 FEET TODAY. WAVES SUBSIDING TO
1 TO 5 FEET TONIGHT.

SUPERIOR EAST...HEAVY FREEZING SPRAY WARNING IN EFFECT...11847
19857 13847 11837 11827 11110 11320. HEAVY FREEZING SPRAY TODAY.
FREEZING SPRAY THROUGH EARLY EVENING. SCATTERED SNOW SHOWERS
OVERNIGHT. WAVES 5 TO 9 FEET TODAY. WAVES SUBSIDING TO 2 TO 5 FEET
TONIGHT.

$$

KC



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