Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 160803
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
403 AM EDT WED APR 16 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...HIGH PRESSURE OF 30.2 INCHES EXTENDING FROM SOUTHERN
ONTARIO SOUTHWARD INTO THE OHIO RIVER VALLEY WILL SHIFT
EASTWARD...OVER THE NEW ENGLAND STATES BY THIS AFTERNOON.
MEANWHILE...LOW PRESSURE OF 29.7 INCHES OVER IOWA THIS EVENING WILL
LIFT NORTHEASTWARD ACROSS UPPER MICHIGAN TONIGHT INTO
THURSDAY EVENING...WEAKENING TO 30.2 INCHES. HIGH PRESSURE OF 30.5
INCHES EXTENDING FROM MANITOBA TO THE EAST COAST THURSDAY MORNING
WILL DROP A 30.3 INCH RIDGE INTO THE UPPER GREAT LAKES BY
FRIDAY...FORCING THE LOW INTO THE LOWER GREAT LAKES BY FRIDAY
EVENING. THE HIGH WILL GRADUALLY DRIFT EASTWARD SATURDAY AND
SUNDAY...EVENTUALLY SETTLING OVER THE LOWER GREAT LAKES BY LATE
SUNDAY AFTERNOON.

LSZ162-161615-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
403 AM EDT WED APR 16 2014 /303 AM CDT WED APR 16 2014/

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.EARLY THIS MORNING...EAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TODAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF SNOW THROUGH EARLY AFTERNOON...THEN
SNOW BY MID AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.
.TONIGHT...EAST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. FREEZING SPRAY. SNOW LIKELY. WAVES BUILDING TO
6 TO 10 FEET.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO
1 TO 3 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST LESS
THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. A CHANCE OF RAIN AND SNOW. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ263-264-161615-
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-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
403 AM EDT WED APR 16 2014

.EARLY THIS MORNING...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TODAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 15 TO 25 KNOTS BY
MID AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.TONIGHT...EAST WINDS 20 TO 30 KNOTS. SNOW. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.THURSDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. SNOW THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW
BY MID AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH MIDNIGHT.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS. A CHANCE OF RAIN. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ265-161615-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
403 AM EDT WED APR 16 2014

.EARLY THIS MORNING...SOUTH WINDS LESS THAN 10 KNOTS.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO 20 KNOTS
BY MID AFTERNOON. SNOW BY MID AFTERNOON.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. SNOW.
.THURSDAY...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. SNOW THROUGH EARLY AFTERNOON...THEN A
CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN BY MID AFTERNOON.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS
THROUGH MIDNIGHT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS. A CHANCE OF RAIN AND SNOW.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ266-267-161615-
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-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
403 AM EDT WED APR 16 2014

.EARLY THIS MORNING...SOUTHWEST WINDS 5 TO 15 KNOTS.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW BY MID AFTERNOON.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
AFTER MIDNIGHT. SNOW.
.THURSDAY...SOUTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. SNOW THROUGH EARLY AFTERNOON...THEN A
CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN BY MID AFTERNOON.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH MIDNIGHT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS. A CHANCE OF RAIN.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ261-161615-
MAFOR 1609/
SUPERIOR WEST...GALE WARNING IN EFFECT...
11310 12220 11230 11247 12257 11247. CHANCE OF SNOW TODAY. FREEZING
SPRAY. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET TODAY. WAVES 5 TO 7
FEET BUILDING TO 6 TO 9 FEET TONIGHT.

SUPERIOR NORTH CENTRAL 12700 11210 12220 11230 12237. CHANCE OF SNOW
THIS AFTERNOON INTO THIS EVENING. WAVES 1 FOOT OR LESS TODAY. WAVES 1
TO 3 FEET BUILDING TO 2 TO 4 FEET TONIGHT.

SUPERIOR SOUTH CENTRAL 11500 11400 11310 11320 14237. CHANCE OF SNOW
THIS AFTERNOON. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 12510 11400 11300 11317 11227 12237. CHANCE OF SNOW
THIS AFTERNOON. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

JLA







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