Great Lakes Forecast
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FZUS63 KMQT 221454
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
954 AM EST THU JAN 22 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.5 INCH HIGH PRESSURE OVER THE NORTHERN PLAINS WILL
SINK TO THE OHIO VALLEY THIS AFTERNOON. 29.4 INCH LOW PRESSURE
ACROSS NORTHERN MANITOBA LATE THIS AFTERNOON WILL SWING ACROSS
NORTHERN ONTARIO AND INTO QUEBEC FRIDAY AND FRIDAY NIGHT...WHILE
DRAGGING A TROUGH AVERAGING 29.7 INCHES ACROSS LAKE SUPERIOR. LOOK
FOR A 30.1 INCH HIGH PRESSURE SYSTEM OVER NORTH CENTRAL CANADA FRIDAY
NIGHT TO PUSH ACROSS ONTARIO AT 30.0 INCHES SATURDAY NIGHT AND
SUNDAY...BEFORE EXITING INTO QUEBEC SUNDAY NIGHT. AT THE SAME TIME A
29.4 INCH LOW PRESSURE SYSTEM ACROSS NORTHERN SASKATCHEWAN SATURDAY
WILL SINK SOUTHEAST ACROSS MINNESOTA AND WISCONSIN SUNDAY MORNING AT
29.5 INCHES...AND THE OHIO VALLEY BY LATE SUNDAY AFTERNOON. THIS WILL
BE FOLLOWED BY A 30.3 INCH HIGH PRESSURE SYSTEM SETTLING INTO ONTARIO
AND LAKE SUPERIOR MONDAY.

LSZ162-222300-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
954 AM EST THU JAN 22 2015

...GALE WARNING IN EFFECT FROM 6 PM EST /5 PM CST/ THIS EVENING
THROUGH FRIDAY MORNING...

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
20 TO 30 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO
5 TO 8 FEET.
.TONIGHT...SOUTHWEST GALES TO 35 KNOTS. FREEZING SPRAY IN THE
EVENING. A SLIGHT CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN...
FREEZING RAIN AND SLEET AFTER MIDNIGHT. WAVES BUILDING TO 7 TO
11 FEET.
.FRIDAY...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. GALE FORCE GUSTS TO 35 KNOTS IN THE
MORNING. A SLIGHT CHANCE OF FREEZING RAIN AND SNOW IN THE MORNING.
WAVES SUBSIDING TO 2 TO 4 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS IN THE EVENING. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. A CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ263-222300-
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-
954 AM EST THU JAN 22 2015

...GALE WARNING IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
FRIDAY MORNING...

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO
20 TO 30 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE AFTERNOON.
WAVES CALM TO 2 FEET BUILDING TO 5 TO 8 FEET.
.TONIGHT...SOUTHWEST GALES TO 40 KNOTS. FREEZING SPRAY IN THE
EVENING. A CHANCE OF SNOW. A SLIGHT CHANCE OF FREEZING RAIN AND
SLEET AFTER MIDNIGHT. WAVES BUILDING TO 10 TO 14 FEET...THEN
SUBSIDING TO 9 TO 12 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
IN THE AFTERNOON. GALE FORCE GUSTS TO 35 KNOTS IN THE MORNING. A
CHANCE OF FREEZING RAIN AND SNOW...POSSIBLY MIXED WITH SLEET IN THE
MORNING. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES 1 TO
3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. A CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 2 TO 4 FEET.

$$

LSZ264-222300-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
954 AM EST THU JAN 22 2015

...GALE WARNING IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
FRIDAY MORNING...

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
20 TO 30 KNOTS IN THE AFTERNOON. FLURRIES LATE IN THE MORNING.
WAVES CALM TO 2 FEET BUILDING TO 5 TO 8 FEET.
.TONIGHT...SOUTHWEST GALES TO 40 KNOTS. FREEZING SPRAY IN THE
EVENING. A SLIGHT CHANCE OF SNOW IN THE EVENING...THEN SNOW
LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 10 TO 14 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
IN THE AFTERNOON. GALE FORCE GUSTS TO 35 KNOTS IN THE MORNING. A
CHANCE OF SNOW...POSSIBLY MIXED WITH SLEET IN THE MORNING. WAVES
SUBSIDING TO 3 TO 6 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ265-222300-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
954 AM EST THU JAN 22 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN
THE AFTERNOON. FLURRIES LATE IN THE MORNING. WAVES CALM TO 2 FEET
BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO
35 KNOTS OVERNIGHT. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING
TO 3 TO 5 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO 20 KNOTS IN
THE AFTERNOON. A CHANCE OF SNOW...POSSIBLY MIXED WITH SLEET AND
FREEZING RAIN IN THE MORNING. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A CHANCE
OF SNOW SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ266-222300-
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-
954 AM EST THU JAN 22 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS LATE IN
THE MORNING. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET...THEN
BUILDING TO 4 TO 7 FEET.
.TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS...WITH A FEW GALE FORCE
GUSTS TO 35 KNOTS. A CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING
TO 10 TO 14 FEET.
.FRIDAY...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW...POSSIBLY MIXED WITH
SLEET. WAVES SUBSIDING TO 4 TO 7 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES 2 TO 4 FEET.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING EAST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO
3 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 2 TO 4 FEET.

$$

LSZ267-222300-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
954 AM EST THU JAN 22 2015

.REST OF TODAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS LATE IN
THE MORNING. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET...THEN
BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO
35 KNOTS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT. A CHANCE OF
SNOW AFTER MIDNIGHT. WAVES BUILDING TO 6 TO 9 FEET.
.FRIDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
3 TO 6 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING EAST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET.

$$
LSZ261-222300-
MAFOR 2216/
SUPERIOR WEST...GALE WARNING IN EFFECT...11530 11541 11550 12551
12550 11540. FREEZING SPRAY AFTER MIDNIGHT. CHANCE OF SNOW...
SLIGHT CHANCE OF LIGHT FREEZING RAIN AND LIGHT SLEET TONIGHT.
WAVES 1 TO 2 FEET BUILDING TO 5 TO 10 FEET THIS AFTERNOON AND
TONIGHT. WAVES SUBSIDING TO 5 TO 8 FEET FRIDAY MORNING.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11530 11540
12550 11560 11567 11657 11650. CHANCE OF SNOW AND LIGHT SLEET
FRIDAY MORNING. WAVES AROUND 1 FOOT BUILDING TO 4 TO 8 FEET THIS
AFTERNOON. WAVES 8 TO 13 FEET TONIGHT AND FRIDAY MORNING.

SUPERIOR SOUTH CENTRAL 11620 11520 11530 12540 12550 11640.
CHANCE OF SNOW...LIGHT SLEET AND LIGHT FREEZING RAIN FRIDAY
MORNING. WAVES 1 TO 5 FEET THIS AFTERNOON THROUGH FRIDAY MORNING.

SUPERIOR EAST 11610 11520 12540 13550 11540. CHANCE OF SNOW
TONIGHT AND FRIDAY MORNING. WAVES 2 TO 5 FEET THIS AFTERNOON.
WAVES BUILDING TO 6 TO 10 FEET TONIGHT AND FRIDAY MORNING.

$$

JS



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