Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 161439
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
939 AM EST THU FEB 16 2017

.SYNOPSIS...A 30.1 INCH RIDGE WILL LINGER ACROSS THE UPPER GREAT
LAKES THROUGH LATE THIS EVENING. A TROUGH OF 29.6 INCHES WILL
DROP SOUTH INTO THE UPPER GREAT LAKES ON FRIDAY AHEAD OF A 29.4
INCH LOW TRACKING ACROSS CENTRAL CANADA TO JAMES BAY ON SATURDAY.
A 29.7 INCH TROUGH LINGERS OVER THE UPPER GREAT LAKES ON SATURDAY
AND MOVES OUT ON SUNDAY AS A 30.0 INCH RIDGE MOVES OVER THE GREAT
LAKES. ON MONDAY...HIGH PRESSURE OF 30.3 INCHES WILL DROP
SOUTHEAST FROM CENTRAL CANADA EAST OF THE HUDSON BAY WHILE A LOW
OF 29.7 INCHES TRAVERSES THE NORTHERN PLAINS.

LSZ162-162245-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
939 AM EST THU FEB 16 2017 /839 AM CST THU FEB 16 2017/

.REST OF TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. RAIN
LIKELY. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ263-162245-
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-
939 AM EST THU FEB 16 2017

.REST OF TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES
CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS BACKING EAST. WAVES CALM TO
2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS. A CHANCE OF RAIN IN THE MORNING...THEN RAIN LIKELY.
WAVES BUILDING TO 2 TO 4 FEET.

$$

LSZ264-162245-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
939 AM EST THU FEB 16 2017

.REST OF TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH
10 TO 20 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES
CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING SOUTH 20 TO
30 KNOTS. A CHANCE OF RAIN IN THE MORNING...THEN RAIN LIKELY.
WAVES BUILDING TO 3 TO 6 FEET.

$$

LSZ265-162245-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
939 AM EST THU FEB 16 2017

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS BACKING EAST. WAVES CALM TO
2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 20 TO
30 KNOTS. A CHANCE OF RAIN IN THE MORNING...THEN RAIN LIKELY.
WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.

$$

LSZ266-162245-
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-
939 AM EST THU FEB 16 2017

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH IN THE
AFTERNOON. ISOLATED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.FRIDAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 20 TO
30 KNOTS. A CHANCE OF RAIN. WAVES BUILDING TO 3 TO 6 FEET.

$$

LSZ267-162245-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
939 AM EST THU FEB 16 2017

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST IN
THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.FRIDAY...SOUTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS BACKING EAST. WAVES SUBSIDING
TO CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 20 TO
30 KNOTS. A CHANCE OF RAIN. WAVES BUILDING TO 3 TO 5 FEET.

$$
LSZ261-162245-
MAFOR 1616/
SUPERIOR WEST 13310 13420 11410 11510. WAVES 1 TO 2 FEET.

SUPERIOR NORTH CENTRAL 11310 15420 11420. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11310 11410 15420. WAVES 1 TO 4 FEET.

SUPERIOR EAST 12300 11310 11420 14430. WAVES 1 TO 4 FEET.

$$

PETRO


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