Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 041500
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1000 AM EST SUN DEC 4 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.3 INCH HIGH PRESSURE RIDGE EXTENDING FROM ONTARIO
TO THE OHIO VALLEY WILL MOVE EASTWARD TO NEW ENGLAND BY THIS EVENING.
A 29.7 INCH TROUGH OVER THE NORTHERN PLAINS THIS MORNING WILL MOVE
EAST OF LAKE SUPERIOR BY MONDAY MORNING. 30.2 INCH HIGH PRESSURE OVER
THE OHIO VALLEY MONDAY MORNING WILL SLOWLY MOVE EAST. A 29.6 INCH LOW
PRESSURE TROUGH WILL DEVELOP IN THE NORTHERN PLAINS MONDAY MORNING
AND DEVELOP A 29.5 INCH LOW PRESSURE SYSTEM OVER LAKE WINNIPEG
TUESDAY MORNING. THIS LOW WILL MOVE SLOWLY EAST TO JAMES BAY BY
WEDNESDAY EVENING AND WEAKEN TO 29.7 INCHES. A 28.9 INCH LOW PRESSURE
SYSTEM WILL DEVELOP OVER THE CANADIAN MARITIMES FRIDAY EVENING WHILE
30.6 INCH HIGH PRESSURE MOVES INTO THE NORTHERN AND CENTRAL PLAINS.

LSZ162-042300-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1000 AM EST SUN DEC 4 2016 /900 AM CST SUN DEC 4 2016/

.REST OF TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH IN THE
AFTERNOON. SNOW LIKELY...POSSIBLY MIXED WITH RAIN. WAVES CALM TO 2
FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN IN THE
EVENING. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS.
WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...SOUTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO
6 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST. A
CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 6 FEET.

$$

LSZ263-042300-
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-
1000 AM EST SUN DEC 4 2016

.REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
AFTERNOON. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN. WAVES
BUILDING TO 3 TO 6 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. A CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.TUESDAY...SOUTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 4 TO 8 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS LIKELY.
WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.

$$

LSZ264-042300-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1000 AM EST SUN DEC 4 2016

.REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. SNOW LIKELY IN THE EVENING. A SLIGHT CHANCE OF RAIN. A
CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO 20 KNOTS
IN THE AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS...POSSIBLY
MIXED WITH SNOW. WAVES BUILDING TO 3 TO 6 FEET.
.TUESDAY...SOUTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS IN THE MORNING. A CHANCE OF SNOW SHOWERS. WAVES 3 TO
6 FEET.
.TUESDAY NIGHT...WEST GALES TO 35 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 5 TO 8 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST. SNOW
SHOWERS LIKELY...THEN A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING
TO 3 TO 6 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 5 TO 8 FEET.

$$

LSZ265-042300-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1000 AM EST SUN DEC 4 2016

.REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. SNOW LIKELY IN THE EVENING...THEN A SLIGHT CHANCE OF
RAIN AND SNOW AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF
RAIN SHOWERS. A SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS...POSSIBLY
MIXED WITH RAIN. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
GALES TO 35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTHWEST GALES TO 35 KNOTS. SNOW SHOWERS. WAVES
BUILDING TO 5 TO 9 FEET.

$$

LSZ266-042300-
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-
1000 AM EST SUN DEC 4 2016

.REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
AFTERNOON...POSSIBLY MIXED WITH RAIN. WAVES 1 TO 3 FEET BUILDING TO
2 TO 4 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN. WAVES
SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS...POSSIBLY MIXED WITH
SNOW IN THE MORNING. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO
3 TO 6 FEET.
.TUESDAY...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST IN THE
AFTERNOON. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES 3 TO 6 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS IN THE EVENING.
A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 5 TO 8 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS. SNOW SHOWERS LIKELY. WAVES BUILDING TO 7 TO 10 FEET.

$$

LSZ267-042300-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1000 AM EST SUN DEC 4 2016

.REST OF TODAY...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH IN
THE AFTERNOON. A SLIGHT CHANCE OF SNOW THROUGH NOON. SNOW IN THE
AFTERNOON...POSSIBLY MIXED WITH RAIN. WAVES 1 TO 3 FEET BUILDING TO 2
TO 4 FEET.
.TONIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. SNOW IN THE EVENING. A SLIGHT CHANCE OF RAIN. A CHANCE
OF SNOW AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTH IN THE
AFTERNOON. A CHANCE OF RAIN SHOWERS...POSSIBLY MIXED WITH SNOW IN
THE MORNING. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO
1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN SHOWERS...
POSSIBLY MIXED WITH SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS IN THE EVENING. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 4 TO 7 FEET.
.WEDNESDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO
6 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 6 TO 10 FEET.

$$
LSZ261-042300-
MAFOR 0416/
SUPERIOR WEST 13427 11520 11530 11640 11630 11510. CHANCE OF SNOW THIS
EVENING. WAVES 2 TO 6 FEET.

SUPERIOR NORTH CENTRAL 11420 11427 11437 11427 11520 11530 11630
11620. CHANCE OF SNOW OVERNIGHT. WAVES 2 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 11420 13427 11520 11530 11630 11620.
CHANCE OF SNOW EARLY THIS AFTERNOON AND AFTER MIDNIGHT TONIGHT.
WAVES 1 TO 4 FEET.

SUPERIOR EAST 11430 14427 11520 12620. CHANCE OF SNOW EARLY THIS
AFTERNOON AND OVERNIGHT. CHANCE OF RAIN SHOWERS MONDAY MORNING.
WAVES 2 TO 4 FEET.

$$

KLUBER


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