Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 102110
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
410 PM EST SAT DEC 10 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK 30.3 INCH LOW PRESSURE TROUGH OVER EASTERN UPPER
MICHIGAN WILL DISSIPATE TONIGHT...AS A 30.5 INCH HIGH PRESSURE RIDGE
CROSSES THE UPPER GREAT LAKES THROUGH SUNDAY. A LOW PRESSURE OF 29.8
INCHES WILL MOVE FROM THE CENTRAL PLAINS SUNDAY MORNING TO NORTHERN
LAKE MICHIGAN SUNDAY NIGHT. THE LOW WILL MOVE OFF THE NEW ENGLAND
COAST MONDAY NIGHT AS A TROUGH OF 29.7 INCHES MOVES OVER WESTERN
ONTARIO. THE TROUGH WILL DEEPEN TO 29.5 INCHES OVER WESTERN QUEBEC
TUESDAY MORNING AS A 30.5 INCH HIGH PRESSURE MOVES INTO THE NORTHERN
PLAINS. THE HIGH WILL DISSIPATE OVER THE OHIO VALLEY WEDNESDAY
EVENING...AS A 30.5 INCH HIGH BUILDS OVER THE NORTHERN PLAINS. THIS
HIGH WILL MOVE OVER NORTHERN ILLINOIS THURSDAY AFTERNOON.

LSZ162-110515-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
410 PM EST SAT DEC 10 2016 /310 PM CST SAT DEC 10 2016/

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES CALM TO
2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS. SNOW LIKELY. WAVES BUILDING
TO 1 TO 3 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH
AFTER MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN A CHANCE OF
SNOW AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO
3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 3 TO 5 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
HEAVY FREEZING SPRAY IN THE AFTERNOON. WAVES BUILDING TO 4 TO
7 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 5 TO 8 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ263-110515-
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-
410 PM EST SAT DEC 10 2016

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING SOUTH AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 1 TO 3 FEET...
THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST IN THE
AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN SNOW LIKELY IN
THE AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTH AFTER
MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN A CHANCE OF SNOW
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS IN THE MORNING. SNOW SHOWERS LIKELY IN THE AFTERNOON.
WAVES BUILDING TO 5 TO 8 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS. HEAVY FREEZING SPRAY.
SNOW SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 5 TO 9 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST. HEAVY
FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 4 TO
8 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.

$$

LSZ264-110515-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
410 PM EST SAT DEC 10 2016

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN
SNOW LIKELY IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN
A CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. FREEZING SPRAY
AFTER MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY.
WAVES BUILDING TO 5 TO 8 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS. HEAVY FREEZING SPRAY.
SNOW SHOWERS LIKELY. WAVES 5 TO 9 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 4 TO 7 FEET...THEN BUILDING TO 6 TO 9 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.

$$

LSZ265-110515-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
410 PM EST SAT DEC 10 2016

.LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED
SNOW SHOWERS. WAVES 1 TO 3 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW IN THE
MORNING...THEN SNOW LIKELY IN THE AFTERNOON. WAVES BUILDING TO
1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. SNOW. WAVES BUILDING TO 3 TO
5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
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...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE
EVENING...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES BUILDING
TO 3 TO 6 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS. FREEZING SPRAY. SNOW SHOWERS.
WAVES 3 TO 6 FEET.
.TUESDAY NIGHT...WEST GALES TO 40 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 4 TO 7 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS. HEAVY FREEZING SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO
3 TO 6 FEET...THEN BUILDING TO 4 TO 7 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO
2 TO 4 FEET.

$$

LSZ266-110515-
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-
410 PM EST SAT DEC 10 2016

.LATE THIS AFTERNOON...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW
SHOWERS. WAVES 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST IN THE
AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN SNOW LIKELY IN
THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN
A CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET...
THEN SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE
EVENING...THEN SNOW SHOWERS AFTER MIDNIGHT. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS. FREEZING SPRAY. SNOW SHOWERS.
WAVES BUILDING TO 6 TO 9 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS. HEAVY FREEZING SPRAY.
SNOW SHOWERS. WAVES BUILDING TO 7 TO 11 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST. HEAVY
FREEZING SPRAY. SNOW SHOWERS. WAVES 7 TO 11 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO
3 TO 5 FEET.

$$

LSZ267-110515-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
410 PM EST SAT DEC 10 2016

.LATE THIS AFTERNOON...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS.
WAVES 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. SNOW SHOWERS IN THE EVENING...THEN
SCATTERED SNOW SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO
3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN
SNOW LIKELY IN THE AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN
A CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE
EVENING...THEN SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO
4 TO 7 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS. FREEZING SPRAY. SNOW SHOWERS.
WAVES BUILDING TO 7 TO 10 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES 7 TO 10 FEET.
.WEDNESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST. FREEZING
SPRAY. SNOW SHOWERS. WAVES 7 TO 11 FEET.
.THURSDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET.

$$

LSZ261-110515-
MAFOR 1022/
SUPERIOR WEST 11710 11610 11510 12310 11320 11327 11227.
SCATTERED SNOW SHOWERS TONIGHT THROUGH MID SUNDAY MORNING. WAVES 1
TO 3 FEET.

SUPERIOR NORTH CENTRAL 12710 11720 11420 12310 11317 11327.
SCATTERED SNOW SHOWERS TONIGHT THROUGH LATE SUNDAY MORNING. WAVES 1
TO 3 FEET.

SUPERIOR SOUTH CENTRAL 11720 12620 12510 11410 11310 11327.
SCATTERED SNOW SHOWERS THIS EVENING THROUGH LATE SUNDAY MORNING.
WAVES 1 TO 3 FEET.

SUPERIOR EAST 11837 11827 11727 11620 11520 11410 11320 11337.
SCATTERED SNOW SHOWERS OVERNIGHT THROUGH SUNDAY. WAVES 1 TO 3 FEET.

$$

JS


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