Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 120757
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
357 AM EDT SAT APR 12 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...AS A 30.2 INCH HIGH PRESSURE SYSTEM OVER NORTHWEST
ONTARIO MOVES INTO QUEBEC LATE TODAY...A 29.6 INCH LOW PRESSURE
SYSTEM OVER THE NORTHERN PLAINS THIS MORNING WILL DRIFT INTO
WISCONSIN THIS EVENING AND WEAKEN TO 29.7 INCHES. ANOTHER 29.4 INCH
LOW PRESSURE SYSTEM DEVELOPING OVER KANSAS LATE TONIGHT WILL THEN
MOVE NORTHEAST THROUGH THE LOWER GREAT LAKES ON SUNDAY NIGHT AND
INTO QUEBEC ON MONDAY WHILE A 30.4 INCH HIGH PRESSURE SYSTEM BUILDS
INTO SOUTH CENTRAL CANADA. EXPECT THIS HIGH TO SLIDE SOUTHEAST
THROUGH THE UPPER LAKES ON TUESDAY AND OVER LOWER MICHIGAN ON
WEDNESDAY.

LSZ162-121600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
357 AM EDT SAT APR 12 2014 /257 AM CDT SAT APR 12 2014/

.EARLY THIS MORNING...EAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE
OF RAIN AND SNOW. WAVES CALM TO 2 FEET.
.TODAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. SNOW LIKELY THROUGH EARLY AFTERNOON...THEN A
CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN BY MID AFTERNOON. WAVES
BUILDING TO 3 TO 5 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN THROUGH
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY...NORTHWEST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST. WAVES
CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST. A
CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.

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

$$

LSZ263-121600-
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-
357 AM EDT SAT APR 12 2014

.EARLY THIS MORNING...EAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF RAIN AND SNOW. WAVES CALM TO 2 FEET.
.TODAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW THROUGH
EARLY AFTERNOON...THEN SNOW LIKELY...POSSIBLY MIXED WITH RAIN BY
MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN THROUGH MIDNIGHT. A
CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTH WINDS LESS THAN 10 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES
BUILDING TO 2 TO 4 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. WAVES
CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. A
CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.

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

$$

LSZ264-121600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
357 AM EDT SAT APR 12 2014

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

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

$$

LSZ265-121600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
357 AM EDT SAT APR 12 2014

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

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

$$

LSZ266-121600-
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-
357 AM EDT SAT APR 12 2014

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

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

$$

LSZ267-121600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
357 AM EDT SAT APR 12 2014

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

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

$$

LSZ261-121600-
MAFOR 1209/
SUPERIOR WEST 11220 11230 12237 12230 11220 11110. CHANCE OF SNOW
THIS MORNING. SNOW LIKELY THIS AFTERNOON. CHANCE OF SNOW TONIGHT.
WAVES 2 FEET OR LESS BUILDING TO 3 TO 5 FEET TODAY. WAVES SUBSIDING
TO 1 TO 3 FEET TONIGHT.

SUPERIOR NORTH CENTRAL 11110 12220 13230 11220 11210. CHANCE OF SNOW
THIS AFTERNOON...THEN A CHANCE OF RAIN AND A SLIGHT CHANCE OF RAIN
TONIGHT. WAVES 2 FEET OR LESS TODAY. WAVES 1 TO 3 FEET TONIGHT.

SUPERIOR SOUTH CENTRAL 11100 11210 11220 11227 11237 12220 11210.
SLIGHT CHANCE OF SNOW THIS MORNING. SNOW LIKELY WITH SLIGHT CHANCE
OF RAIN THIS AFTERNOON AND EVENING. SLIGHT CHANCE OF NOW OVERNIGHT.
WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 12110 12220 11237 11230 12220. CHANCE OF SNOW AND RAIN THIS
AFTERNOON. SNOW LIKELY AND A CHANCE OF RAIN IN THE EVENING. A SLIGHT CHANCE
OF SNOW OVERNIGHT. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

JLB





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