Great Lakes Forecast
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FZUS63 KMQT 180206
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1006 PM EDT THU APR 17 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.2 INCH LOW PRESSURE ACROSS NORTHERN LAKE SUPERIOR WILL
EXIT NORTHEAST ACROSS ONTARIO OVERNIGHT...MAKING WAY FOR 30.4 INCH
HIGH PRESSURE ACROSS SOUTHERN CANADA AND MINNESOTA EARLY FRIDAY
MORNING TO BUILD ACROSS LAKE SUPERIOR FRIDAY AFTERNOON AND EVENING.
THE AREA OF HIGH PRESSURE WILL SHIFT INTO QUEBEC ON SATURDAY.
MEANWHILE...29.7 INCH LOW PRESSURE ACROSS MANITOBA AND NORTH DAKOTA
ON SATURDAY WILL FILL TO 29.8 INCHES OVER NORTHWESTERN ONTARIO...AND
SLIDE A 30.0 INCH TROUGH ACROSS THE UPPER GREAT LAKES ON SUNDAY. A
BRIEF 30.1 INCH AREA OF HIGH PRESSURE WILL QUICKLY SHIFT ACROSS LAKE
SUPERIOR SUNDAY NIGHT INTO EARLY MONDAY...AHEAD OF THE NEXT QUICK
MOVING 29.9 INCH LOW PRESSURE SYSTEM SINKING ACROSS THE GREAT LAKES
REGION FROM THE NORTHWEST MONDAY AFTERNOON INTO MONDAY NIGHT. EXPECT
30.1 INCH HIGH PRESSURE OVER CENTRAL CANADA AND THE NORTHERN PLAINS
TUESDAY MORNING TO MOVE ACROSS THE UPPER GREAT LAKES DURING THE DAY.


LSZ162-181015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1006 PM EDT THU APR 17 2014 /906 PM CDT THU APR 17 2014/

.REST OF TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS...POSSIBLY
MIXED WITH RAIN AND FREEZING RAIN AFTER MIDNIGHT. WAVES BUILDING
TO 2 TO 4 FEET.
.SATURDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG. SNOW...POSSIBLY MIXED WITH
FREEZING RAIN THROUGH EARLY AFTERNOON. RAIN LIKELY WITH A SLIGHT
CHANCE OF SNOW BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING WEST LESS
THAN 10 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES SUBSIDING
TO CALM TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING EAST. WAVES CALM
TO 2 FEET.

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

$$

LSZ263-264-181015-
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-
1006 PM EDT THU APR 17 2014

.REST OF TONIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES 1 TO 4 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG. SNOW...
POSSIBLY MIXED WITH RAIN. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW THROUGH
MIDNIGHT. A CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ265-181015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1006 PM EDT THU APR 17 2014

.REST OF TONIGHT...WEST WINDS 10 TO 20 KNOTS.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY NIGHT...NORTHWEST WINDS LESS THAN 10 KNOTS BECOMING
SOUTHEAST 5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT.
.SATURDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG. A SLIGHT
CHANCE OF RAIN THROUGH EARLY AFTERNOON. SNOW LIKELY. RAIN BY MID
AFTERNOON.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. RAIN THROUGH MIDNIGHT...THEN A
CHANCE OF RAIN AFTER MIDNIGHT.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT.
.MONDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS.

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

$$

LSZ266-267-181015-
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-
1006 PM EDT THU APR 17 2014

.REST OF TONIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW THROUGH EARLY
AFTERNOON...THEN SNOW...POSSIBLY MIXED WITH RAIN BY MID
AFTERNOON. PATCHY FOG BY MID AFTERNOON.
.SATURDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH
AFTER MIDNIGHT. RAIN...POSSIBLY MIXED WITH SNOW THROUGH
MIDNIGHT...THEN A CHANCE OF RAIN AFTER MIDNIGHT.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING NORTHWEST.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH.

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

$$

LSZ261-181015-
MAFOR 1803/
SUPERIOR WEST 14710 11600 11500 11300 11210. WAVES IN ICE FREE AREAS
CALM TO 2 FEET.

SUPERIOR NORTH CENTRAL 11610 14720 11720 11710 11700. WAVES IN ICE FREE
AREAS 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 13620 14720 11710. WAVES OMITTED DUE TO ICE
COVER.

SUPERIOR EAST 11510 13620 13720 11710. SLIGHT CHANCE OF LIGHT
FREEZING DRIZZLE FRIDAY MORNING. WAVES OMITTED DUE TO ICE COVER.

$$

JS





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