Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 172002
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
402 PM EDT FRI MAR 17 2017

.SYNOPSIS...A 29.6 INCH LOW PRESSURE WILL TRACK SOUTHEASTWARD
ACROSS THE GREAT LAKES REGION THROUGH SATURDAY...CROSSING WESTERN
LAKE SUPERIOR THIS EVENING. A 30.4 INCH RIDGE WILL THEN MOVE
EASTWARD ACROSS THE UPPER GREAT LAKES SATURDAY NIGHT AND THE LOWER
GREAT LAKES ON SUNDAY. A 29.0 INCH LOW PRESSURE OVER NORTHERN
MANITOBA SUNDAY MORNING WILL THEN TRACK EAST...CROSSING HUDSON BAY
SUNDAY NIGHT AND MONDAY WHILE DRAGGING A COLD FRONT ACROSS THE
UPPER GREAT LAKES LATE SUNDAY NIGHT INTO MONDAY MORNING. IN ITS
WAKE...A 30.3 INCH RIDGE WILL BUILD SOUTHEASTWARD ACROSS THE
NORTHERN PLAINS BY MONDAY NIGHT...AND EVENTUALLY DRIFT EASTWARD
ACROSS THE UPPER GREAT LAKES AT 30.5 INCHES ON WEDNESDAY.

LSZ162-180415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
402 PM EDT FRI MAR 17 2017 /302 PM CDT FRI MAR 17 2017/

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF
DRIZZLE. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF DRIZZLE AND A SLIGHT CHANCE
OF SNOW. WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-180415-
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-
402 PM EDT FRI MAR 17 2017

.LATE THIS AFTERNOON...SOUTH WINDS 10 TO 20 KNOTS. RAIN LIKELY...
DRIZZLE LIKELY AND SNOW. WAVES 2 TO 4 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF DRIZZLE AND SNOW. WAVES
SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 3 TO 5 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW THROUGH EARLY
AFTERNOON. WAVES 3 TO 6 FEET SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. WAVES
CALM TO 2 FEET.

$$

LSZ264-180415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
402 PM EDT FRI MAR 17 2017

.LATE THIS AFTERNOON...SOUTHEAST WINDS 10 TO 20 KNOTS. RAIN AND
SNOW LIKELY. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS BACKING NORTH AFTER
MIDNIGHT. DRIZZLE LIKELY THROUGH MIDNIGHT. A CHANCE OF DRIZZLE
AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO 1 TO 3
FEET...THEN BUILDING TO 2 TO 4 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW THROUGH EARLY
AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SATURDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.
.SUNDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. A CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. FREEZING SPRAY
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH. FREEZING
SPRAY. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 1 TO 3 FEET.

$$

LSZ265-180415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
402 PM EDT FRI MAR 17 2017

.LATE THIS AFTERNOON...SOUTHEAST WINDS 15 TO 25 KNOTS. RAIN AND
SNOW LIKELY. WAVES 3 TO 5 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF DRIZZLE AND SNOW. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF DRIZZLE THROUGH EARLY
AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING
TO 3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS...THEN SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS VEERING SOUTH. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-180415-
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-
402 PM EDT FRI MAR 17 2017

.LATE THIS AFTERNOON...SOUTHEAST WINDS 15 TO 25 KNOTS. SNOW...
POSSIBLY MIXED WITH RAIN. WAVES 3 TO 6 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. DRIZZLE AND SNOW
LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF DRIZZLE AND SNOW.
WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF DRIZZLE AND
SNOW. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS
THROUGH MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 20 TO 30 KNOTS. WAVES BUILDING TO 3 TO
6 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH. FREEZING
SPRAY. A CHANCE OF SNOW SHOWERS. SNOW SHOWERS LIKELY. WAVES
BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.

$$

LSZ267-180415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
402 PM EDT FRI MAR 17 2017

.LATE THIS AFTERNOON...SOUTHEAST WINDS 15 TO 25 KNOTS. DRIZZLE
AND SNOW LIKELY. WAVES 2 TO 4 FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SNOW LIKELY. DRIZZLE LIKELY THROUGH
MIDNIGHT. A CHANCE OF DRIZZLE AFTER MIDNIGHT. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A CHANCE OF DRIZZLE AND SNOW. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY...POSSIBLY
MIXED WITH SNOW SHOWERS THROUGH MIDNIGHT...THEN A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4
FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 3 TO
5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS WITH GALE FORCE
GUSTS TO 35 KNOTS. FREEZING SPRAY AFTER MIDNIGHT. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH. FREEZING
SPRAY. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ261-180415-
MAFOR 1721/
SUPERIOR WEST 11510 12620 11730 12740 11730 11710. CHANCE OF
DRIZZLE THIS EVENING. WAVES 1 TO 5 FEET.

SUPERIOR NORTH CENTRAL 11337 11435 11420 11600 11830 11840 12830.
CHANCE OF DRIZZLE AND SNOW TONIGHT AND SATURDAY MORNING. WAVES 4
TO 7 FEET SUBSIDING TO 2 TO 3 FEET TONIGHT. WAVES 2 TO 6 FEET
SATURDAY.

SUPERIOR SOUTH CENTRAL 11337 11320 11410 11500 11710 11720 12730.
CHANCE OF DRIZZLE AND SNOW TONIGHT AND SATURDAY MORNING. WAVES 1
TO 4 FEET.

SUPERIOR EAST 13337 11327 11310 11200 11100 11810. CHANCE OF
DRIZZLE AND SNOW OVERNIGHT AND SATURDAY. WAVES 2 TO 5 FEET
TONIGHT SUBSIDING TO 2 FEET OR LESS SATURDAY.

$$

KLUBER



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