Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 222002
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
402 PM EDT WED MAR 22 2017

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.6 INCH HIGH PRESSURE CENTERED OVER NORTHERN LAKE
MICHIGAN LATE THIS AFTERNOON WILL DRIFT TO THE EAST COAST THROUGH
THURSDAY AS A 29.5 INCH LOW PRESSURE ORGANIZES OVER THE WESTERN
PLAINS. ON FRIDAY AFTERNOON...THIS LOW WILL MOVE INTO THE CENTRAL
PLAINS AS 30.5 INCH HIGH PRESSURE BUILDS OVER NORTHERN ONTARIO.
THE HIGH WILL BUILD TO 30.7 INCHES OVER JAMES BAY SATURDAY
AFTERNOON AS THE LOW WEAKENS TO 29.7 INCHES OVER NORTHERN
ILLINOIS. HIGH PRESSURE WILL LIFT EAST OF HUDSON BAY ON SUNDAY
WHILE THE LOW OVER ILLINOIS FURTHER WEAKENS. A 30.1 INCH RIDGE
WILL BUILD OVER THE UPPER GREAT LAKES MONDAY.

LSZ162-230415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
402 PM EDT WED MAR 22 2017 /302 PM CDT WED MAR 22 2017/

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS...POSSIBLY
MIXED WITH SNOW. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING
TO CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. RAIN. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN SOUTH. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY...NORTHEAST WINDS 20 TO 30 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES 3 TO 6 FEET.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN...
POSSIBLY MIXED WITH FREEZING RAIN. A CHANCE OF SLEET AFTER
MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. RAIN LIKELY. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. A CHANCE
OF RAIN. WAVES CALM TO 2 FEET.

$$

LSZ263-230415-
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 WED MAR 22 2017

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW. WAVES BUILDING TO 3 TO
5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. RAIN...POSSIBLY MIXED WITH SNOW.
WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SOUTH. WAVES
CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
3 TO 6 FEET.
.SATURDAY...EAST WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. A CHANCE OF SLEET
AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST. A CHANCE OF
RAIN AND SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN. WAVES CALM
TO 2 FEET.

$$

LSZ264-230415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
402 PM EDT WED MAR 22 2017

.LATE THIS AFTERNOON...VARIABLE WINDS LESS THAN 10 KNOTS BECOMING
SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO 4
FEET.
.THURSDAY...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING.
SCATTERED RAIN AND SNOW SHOWERS BY MID AFTERNOON. WAVES BUILDING
TO 4 TO 7 FEET... THEN SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. RAIN...POSSIBLY MIXED WITH SNOW.
WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. WAVES 3 TO 5 FEET.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.
WAVES 3 TO 6 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS.
A CHANCE OF RAIN AND SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN. WAVES CALM
TO 2 FEET.

$$

LSZ265-230415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
402 PM EDT WED MAR 22 2017

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2
FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 15 TO 25 KNOTS. SCATTERED SNOW SHOWERS
POSSIBLY MIXED WITH RAIN BY MID AFTERNOON. WAVES BUILDING TO 3 TO
5 FEET.
.THURSDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. RAIN...POSSIBLY MIXED WITH SNOW. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
3 TO 6 FEET.
.SATURDAY...EAST WINDS 15 TO 25 KNOTS. WAVES 3 TO 5 FEET.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN. A
CHANCE OF FREEZING RAIN AND SLEET AFTER MIDNIGHT. WAVES 3 TO
5 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN. A CHANCE
OF SNOW SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ266-230415-
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 WED MAR 22 2017

.LATE THIS AFTERNOON...VARIABLE WINDS LESS THAN 10 KNOTS BECOMING
SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY...SOUTH WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO
35 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS POSSIBLY MIXED
WITH RAIN BY MID AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE
EVENING. RAIN...POSSIBLY MIXED WITH SNOW. WAVES SUBSIDING TO 1 TO
3 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
3 TO 6 FEET.
.SATURDAY...EAST WINDS 15 TO 25 KNOTS. WAVES 3 TO 5 FEET.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN...
POSSIBLY MIXED WITH SNOW. A CHANCE OF FREEZING RAIN AND SLEET
AFTER MIDNIGHT. WAVES 3 TO 6 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN...FREEZING
RAIN AND SLEET. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN. WAVES
CALM TO 2 FEET.

$$

LSZ267-230415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
402 PM EDT WED MAR 22 2017

.LATE THIS AFTERNOON...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS WITH A FEW GALE FORCE GUSTS TO 35 KNOTS BY MID
AFTERNOON. SCATTERED SNOW SHOWERS POSSIBLY MIXED WITH RAIN BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE
EVENING. RAIN. SNOW LIKELY THROUGH MIDNIGHT. A CHANCE OF SNOW
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH BY MID
AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
.SATURDAY...EAST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.SATURDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. A
CHANCE OF SLEET AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN...FREEZING
RAIN AND SLEET. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN...THEN
SNOW SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES CALM TO 2 FEET.

$$

LSZ261-230415-
MAFOR 2221/
SUPERIOR WEST 12310 11320 11420 13430 11420. SCATTERED RAIN AND
SNOW SHOWERS LATE TONIGHT THROUGH MID MORNING THURSDAY. WAVES 1
TO 4 FEET.

SUPERIOR NORTH CENTRAL 11510 11410 13420 11430 12440. WAVES 1 TO
4 FEET TONIGHT BUILDING TO 3 TO 6 FEET THURSDAY.

SUPERIOR SOUTH CENTRAL 11300 11310 12420 11430 13440. SCATTERED
RAIN AND SNOW SHOWERS THURSDAY AFTERNOON. WAVES 1 TO 3 FEET
TONIGHT BUILDING TO 3 TO 5 FEET THURSDAY.

SUPERIOR EAST 11610 11500 12420 11430 13440. SCATTERED RAIN AND SNOW
SHOWERS THURSDAY AFTERNOON. WAVES 1 TO 4 FEET TONIGHT BUILDING TO
3 TO 6 FEET THURSDAY.

$$

KLUBER



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