Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 250743
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
343 AM EDT FRI APR 25 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE AVERAGING 29.6 INCHES STRETCHING FROM
WESTERN LAKE SUPERIOR THROUGH INDIANA WILL EXIT ACROSS THE LOWER
GREAT LAKES OVERNIGHT. LARGE 30.5 INCH HIGH PRESSURE SET UP ACROSS
MUCH OF CENTRAL CANADA WILL SLIDE ACROSS HUDSON BAY ON
SATURDAY...WHERE IT WILL RESIDE THROUGH SUNDAY WHILE BUILDING TO
30.8 INCHES...BEFORE SLIDING TO NORTHERN QUEBEC SUNDAY NIGHT THROUGH
TUESDAY. THE RESULT WILL BE A 30.3 INCH RIDGE EXTENDING SOUTH ACROSS
LAKE SUPERIOR SATURDAY THROUGH MONDAY. THE RIDGE WILL BE REPLACED BY
A 30.1 INCH TROUGH ON TUESDAY...EXTENDING FROM 29.5 INCH LOW
PRESSURE SHIFTING FROM THE CENTRAL PLAINS TO THE MID MISSISSIPPI
VALLEY.

LSZ162-251545-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
343 AM EDT FRI APR 25 2014 /243 AM CDT FRI APR 25 2014/

.EARLY THIS MORNING...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW...POSSIBLY MIXED WITH RAIN. WAVES 4 TO 7 FEET.
.TODAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTH BY MID
AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH MIDNIGHT. WAVES
BUILDING TO 2 TO 4 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
BY MID AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES 4 TO 7 FEET.
.MONDAY...EAST WINDS 20 TO 30 KNOTS. WAVES BUILDING TO 5 TO
8 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.TUESDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF RAIN. WAVES BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 3 TO 5 FEET.

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

$$

LSZ263-251545-
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-
343 AM EDT FRI APR 25 2014

.EARLY THIS MORNING...SOUTHEAST WINDS 15 TO 25 KNOTS. SNOW...
POSSIBLY MIXED WITH RAIN. WAVES 4 TO 7 FEET.
.TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY
AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO
5 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
.MONDAY...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. WAVES 3 TO 5 FEET.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.
WAVES 3 TO 6 FEET.

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

$$

LSZ264-251545-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
343 AM EDT FRI APR 25 2014

.EARLY THIS MORNING...SOUTHEAST WINDS 20 TO 30 KNOTS. A FEW GALE
FORCE GUSTS TO 35 KNOTS. SNOW. WAVES 3 TO 6 FEET.
.TODAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. SNOW. WAVES SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.MONDAY...EAST WINDS 20 TO 30 KNOTS. WAVES SUBSIDING TO 2 TO
4 FEET...THEN BUILDING TO 3 TO 6 FEET.
.TUESDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF RAIN. WAVES 3 TO 5 FEET.

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

$$

LSZ265-251545-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
343 AM EDT FRI APR 25 2014

.EARLY THIS MORNING...SOUTHEAST WINDS 20 TO 30 KNOTS. SNOW.
.TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW...POSSIBLY MIXED WITH
RAIN.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST
AFTER MIDNIGHT.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS.
.MONDAY...EAST WINDS 15 TO 25 KNOTS.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.

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

$$

LSZ266-251545-
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-
343 AM EDT FRI APR 25 2014

.EARLY THIS MORNING...SOUTHEAST WINDS 20 TO 30 KNOTS. SNOW.
.TODAY...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW...POSSIBLY MIXED WITH
RAIN.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
RAIN SHOWERS THROUGH MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST
AFTER MIDNIGHT.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS.
.MONDAY...EAST WINDS 15 TO 25 KNOTS.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.

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

$$

LSZ267-251545-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
343 AM EDT FRI APR 25 2014

.EARLY THIS MORNING...EAST WINDS 20 TO 30 KNOTS. SNOW.
.TODAY...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN THROUGH EARLY
AFTERNOON...THEN RAIN SHOWERS LIKELY. A CHANCE OF SNOW.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. SNOW SHOWERS...POSSIBLY MIXED WITH RAIN THROUGH
MIDNIGHT...THEN A CHANCE OF SNOW SHOWERS.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON.
.SATURDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT.
.SUNDAY...NORTHEAST WINDS 5 TO 15 KNOTS.
.SUNDAY NIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT.
.MONDAY...EAST WINDS 15 TO 25 KNOTS.
.TUESDAY...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.

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

$$

LSZ261-251545-
MAFOR 2509/
SUPERIOR WEST 11340 11520 11620 11820 13830 11130. A SLIGHT CHANCE
OF RAIN THIS MORNING. CHANCE OF SNOW TODAY. WAVES 1 TO 6 FEET. WAVE
HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR NORTH CENTRAL 12347 11247 11237 11227 12140 11130. CHANCE
OF SNOW SHOWERS TONIGHT. WAVES 1 TO 6 FEET. WAVE HEIGHT FORECASTS
ARE FOR ICE FREE AREAS.

SUPERIOR SOUTH CENTRAL 11347 12330 11220 11810 11710 11820 11830.
A CHANCE OF SNOW THROUGH THIS AFTERNOON. SLIGHT CHANCE OF RAIN
SHOWERS IN THE EVENING. CHANCE OF SNOW SHOWERS TONIGHT. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 12247 12330 11336 11227 11237 11130. A CHANCE OF SNOW
SHOWERS AND SLIGHT CHANCE OF RAIN SHOWERS THIS AFTERNOON. A CHANCE OF
SNOW SHOWERS OVERNIGHT. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

KF





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