Great Lakes Forecast
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020
FZUS63 KMQT 070307
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1007 PM EST TUE DEC 6 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.4 INCH LOW PRESSURE OVER NORTHERN ONTARIO WILL
REACH JAMES BAY BY WEDNESDAY EVENING. A PAIR OF ASSOCIATED TROUGHS
WILL CROSS LAKE SUPERIOR WEDNESDAY AFTERNOON AND NIGHT. THE LOW WILL
CONTINUE EASTWARD TO THE CANADIAN MARITIMES THROUGH FRIDAY WHILE A
30.6 INCH HIGH PRESSURE RIDGE BUILDS ACROSS THE CENTRAL PLAINS. THE
RIDGE WILL CROSS THE UPPER GREAT LAKES FRIDAY NIGHT INTO SATURDAY. A
TROUGH OF LOW PRESSURE AVERAGING 29.9 INCHES WILL THEN SLIDE FROM THE
PLAIN INTO THE UPPER GREAT LAKES REGION SATURDAY NIGHT INTO SUNDAY.

LSZ162-071115-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1007 PM EST TUE DEC 6 2016 /907 PM CST TUE DEC 6 2016/

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.REST OF TONIGHT...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST
GALES TO 40 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES
5 TO 8 FEET BUILDING TO 8 TO 11 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS DECREASING TO 20 TO 30 KNOTS IN
THE MORNING. ISOLATED SNOW SHOWERS. WAVES SUBSIDING TO 6 TO 9 FEET.
.WEDNESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5
FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 20 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 6 FEET.
.THURSDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 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.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST. A CHANCE
OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES BUILDING TO
1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.

$$

LSZ263-071115-
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-
1007 PM EST TUE DEC 6 2016

...GALE WARNING IN EFFECT THROUGH WEDNESDAY EVENING...

.REST OF TONIGHT...SOUTHWEST GALES TO 35 KNOTS. SCATTERED SNOW
SHOWERS. WAVES 6 TO 9 FEET BUILDING TO 10 TO 14 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS. NUMEROUS SNOW SHOWERS IN THE
MORNING...THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON. WAVES
SUBSIDING TO 9 TO 12 FEET.
.WEDNESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO
6 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS
LIKELY. WAVES SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. SNOW SHOWERS LIKELY IN THE MORNING...THEN A CHANCE OF
SNOW SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.

$$

LSZ264-071115-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1007 PM EST TUE DEC 6 2016

...GALE WARNING IN EFFECT FROM 2 AM EST WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS LATE IN
THE EVENING...THEN NUMEROUS SNOW SHOWERS AFTER MIDNIGHT. WAVES
6 TO 9 FEET BUILDING TO 10 TO 14 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS. NUMEROUS SNOW SHOWERS IN THE
MORNING...THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON. WAVES
SUBSIDING TO 9 TO 12 FEET.
.WEDNESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS VEERING NORTH AFTER
MIDNIGHT. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 4 TO 7 FEET.
.THURSDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
IN THE AFTERNOON. SNOW SHOWERS LIKELY. WAVES BUILDING TO 5 TO
8 FEET.
.THURSDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO
3 TO 5 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.

$$

LSZ265-071115-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1007 PM EST TUE DEC 6 2016

...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS. ISOLATED SNOW SHOWERS. WAVES 3 TO 6 FEET BUILDING
TO 4 TO 7 FEET.
.WEDNESDAY...SOUTHWEST GALES TO 35 KNOTS VEERING WEST IN THE
AFTERNOON. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET.
.WEDNESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. SNOW SHOWERS. WAVES
BUILDING TO 5 TO 8 FEET.
.THURSDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS. SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. SNOW SHOWERS
LIKELY. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. SNOW SHOWERS LIKELY...THEN A CHANCE OF SNOW SHOWERS.
WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES BUILDING TO 2 TO 4 FEET.

$$

LSZ266-071115-
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-
1007 PM EST TUE DEC 6 2016

...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS. ISOLATED SNOW SHOWERS. WAVES 5 TO 9 FEET.
.WEDNESDAY...SOUTHWEST GALES TO 35 KNOTS VEERING WEST IN THE
AFTERNOON. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 8 TO
12 FEET.
.WEDNESDAY NIGHT...WEST GALES TO 35 KNOTS VEERING NORTHWEST 20 TO 30
KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 5 TO 8 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. SNOW SHOWERS. WAVES
SUBSIDING TO 4 TO 7 FEET...THEN BUILDING TO 6 TO 9 FEET.
.THURSDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
6 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. A
CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES BUILDING
TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.

$$

LSZ267-071115-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1007 PM EST TUE DEC 6 2016

.REST OF TONIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS. SCATTERED RAIN
SHOWERS LATE IN THE EVENING. ISOLATED SNOW SHOWERS. WAVES 4 TO
7 FEET.
.WEDNESDAY...SOUTHWEST WINDS 20 TO 30 KNOTS. SCATTERED SNOW SHOWERS.
WAVES BUILDING TO 8 TO 11 FEET.
.WEDNESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS. WAVES
SUBSIDING TO 5 TO 8 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. SNOW SHOWERS. WAVES 4 TO 8
FEET.
.THURSDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25
KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY. WAVES SUBSIDING
TO 1 TO 3 FEET.
.FRIDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. SNOW SHOWERS...THEN A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.

$$
LSZ261-071115-
MAFOR 0704/
SUPERIOR WEST...GALE WARNING IN EFFECT...11550 15650 11640.
SCATTERED SNOW SHOWERS. WAVES 6 TO 9 FEET BUILDING TO 8 TO 11 FEET
OVERNIGHT. WAVES 7 TO 11 FEET WEDNESDAY SUBSIDING TO 5 TO 8 FEET
WEDNESDAY EVENING.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11540 11547
11557 11657 14647. SCATTERED SNOW SHOWERS LATE THIS EVENING.
WAVES 6 TO 9 FEET BUILDING TO 8 TO 11 FEET OVERNIGHT. WAVES 9 TO 12
FEET SUBSIDING TO 6 TO 10 FEET WEDNESDAY AND WEDNESDAY EVENING.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...12540 13550
11650 12657. WAVES 4 TO 7 FEET OVERNIGHT BUILDING TO 5 TO 9 FEET
WEDNESDAY AND WEDNESDAY EVENING.

SUPERIOR EAST...GALE WARNING IN EFFECT...11640 14540 11540 11557
11657. SCATTERED SNOW SHOWERS OVERNIGHT AND WEDNESDAY. WAVES 5 TO 7
FEET OVERNIGHT BUILDING TO 8 TO 11 FEET WEDNESDAY AND WEDNESDAY
EVENING.

$$

PETRO



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