Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 221406
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1006 AM EDT TUE APR 22 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...AS 29.5 INCH LOW PRESSURE OVER SOUTHEAST ONTARIO LATE
THIS MORNING DRIFTS EAST AND OFF THE NEW ENGLAND COAST ON
WEDNESDAY...EXPECT A 30.2 INCH HIGH PRESSURE RIDGE IN THE NORTHERN
PLAINS TO MOVE TO THE CENTRAL GREAT LAKES. THIS HIGH WILL SHIFT TO
THE MID ATLANTIC STATES ON THURSDAY. MEANWHILE...A 29.4 INCH LOW
PRESSURE SYSTEM DEVELOPING IN THE PLAINS ON WEDNESDAY WILL MOVE
NORTHEAST...CROSSING UPPER MICHIGAN FRIDAY BEFORE SHIFTING TO
SOUTHEAST ONTARIO ON SATURDAY. IN ITS WAKE...A 30.4 INCH HIGH
PRESSURE SYSTEM WILL BUILD INTO SOUTH CENTRAL CANADA ON SATURDAY.

LSZ162-222215-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1006 AM EDT TUE APR 22 2014 /906 AM CDT TUE APR 22 2014/

.REST OF TODAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS LESS THAN 10 KNOTS BACKING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN AND
SNOW. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO
2 FEET.
.THURSDAY...EAST WINDS 10 TO 20 KNOTS. RAIN LIKELY THROUGH EARLY
AFTERNOON...THEN A CHANCE OF RAIN. SNOW. WAVES BUILDING TO 2 TO 4
FEET.
.THURSDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST
5 TO 15 KNOTS AFTER MIDNIGHT. SNOW LIKELY THROUGH MIDNIGHT. A
CHANCE OF SNOW AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
A CHANCE OF RAIN. A CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO 2
FEET...THEN BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.

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

$$

LSZ263-222215-
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-
1006 AM EDT TUE APR 22 2014

.REST OF TODAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN. A CHANCE OF SNOW AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 10 TO 20 KNOTS. SNOW...POSSIBLY MIXED WITH
RAIN. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST. WAVES
SUBSIDING TO CALM TO 2 FEET.

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

$$

LSZ264-222215-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1006 AM EDT TUE APR 22 2014

.REST OF TODAY...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS BY MID AFTERNOON. WAVES 1 TO 3 FEET SUBSIDING TO
CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST
5 TO 15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW THROUGH EARLY
AFTERNOON...THEN SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS.
SNOW LIKELY...THEN A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4
FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

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

$$

LSZ265-222215-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1006 AM EDT TUE APR 22 2014

.REST OF TODAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS BY MID AFTERNOON.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS.
.WEDNESDAY...NORTH WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW THROUGH EARLY
AFTERNOON...THEN SNOW.
.THURSDAY NIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. RAIN THROUGH MIDNIGHT. SNOW.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS.
A CHANCE OF SNOW.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.

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

$$

LSZ266-222215-
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-
1006 AM EDT TUE APR 22 2014

.REST OF TODAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST BY
MID AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS THROUGH LATE
MORNING. ISOLATED SNOW SHOWERS THROUGH LATE MORNING.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT.
.WEDNESDAY...NORTH WINDS LESS THAN 10 KNOTS.
.WEDNESDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS BECOMING
SOUTHEAST 5 TO 15 KNOTS AFTER MIDNIGHT.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. SNOW BY MID AFTERNOON.
.THURSDAY NIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SNOW.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.

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

$$

LSZ267-222215-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1006 AM EDT TUE APR 22 2014

.REST OF TODAY...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST BY
MID AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS THROUGH LATE
MORNING. ISOLATED SNOW SHOWERS THROUGH LATE MORNING.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST
AFTER MIDNIGHT.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. SNOW LIKELY BY MID AFTERNOON.
.THURSDAY NIGHT...EAST WINDS 20 TO 30 KNOTS BECOMING SOUTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. RAIN LIKELY THROUGH MIDNIGHT. SNOW
LIKELY.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. A CHANCE
OF SNOW.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.

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

$$
LSZ261-222215-
MAFOR 2215/
SUPERIOR WEST 11610 11510 11500 11400 14300. WAVES IN ICE FREE AREAS
1 FOOT OR LESS.

SUPERIOR NORTH CENTRAL 11740 11730 12720 11710 12700 11600. WAVES IN
ICE FREE AREAS 3 FEET OR LESS.

SUPERIOR SOUTH CENTRAL 12740 11730 11720 12710 12700. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 11840 12740 11730 11820 11810 12800. ISOLATED SNOW
SHOWERS LATE THIS MORNING. WAVES OMITTED FOR MOSTLY ICE COVERED
AREAS.

$$

ROLFSON





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