Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 222008
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
408 PM EDT TUE APR 22 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK 29.9 INCH TROUGH OVER EASTERN UPPER MICHIGAN
ASSOCIATED WITH A 29.5 INCH LOW NEAR MONTREAL WILL SHIFT EASTWARD
THROUGH TONIGHT. EXPECT A 30.2 INCH HIGH PRESSURE RIDGE OVER THE
UPPER MISSISSIPPI VALLEY TO MOVE TO THE CENTRAL GREAT LAKES THROUGH
WEDNESDAY BEFORE TRACKING TO THE MID ATLANTIC STATES ON THURSDAY.
TWO 29.4 INCH LOW PRESSURE SYSTEMS OVER SOUTHERN SASKATCHEWAN AND
THE CENTRAL PLAINS WEDNESDAY NIGHT WILL MERGE OVER WISCONSIN ON
THURSDAY...AND THEN TRACK ACROSS THE UPPER GREAT LAKES AT 29.6 INCHES
ON FRIDAY. THE LOW WILL TRACK TO SOUTHEAST ONTARIO ON SATURDAY AS
30.3 INCH HIGH PRESSURE OVER FAR NORTHERN ONTARIO PASSES A 30.2 INCH
RIDGE ACROSS LAKE SUPERIOR. THE RIDGE WILL DRIFT EASTWARD ON SUNDAY
AS 29.3 INCH LOW PRESSURE FORMS OVER THE CENTRAL PLAINS.

LSZ162-230415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
408 PM EDT TUE APR 22 2014 /308 PM CDT TUE APR 22 2014/

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 THAN 15 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTHEAST WINDS LESS THAN 10 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN...
POSSIBLY MIXED WITH SNOW. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...EAST WINDS 15 TO 25 KNOTS. SNOW...POSSIBLY MIXED WITH
RAIN. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. SNOW LIKELY. WAVES SUBSIDING TO 1 TO 3 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. A CHANCE OF SNOW. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS.
WAVES BUILDING TO 1 TO 3 FEET.

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

$$

LSZ263-230415-
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-
408 PM EDT TUE APR 22 2014

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

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

$$

LSZ264-230415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
408 PM EDT TUE APR 22 2014

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. WAVES 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...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 20 TO
30 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW THROUGH EARLY
AFTERNOON...THEN SNOW. A SLIGHT CHANCE OF RAIN. WAVES BUILDING TO 2
TO 4 FEET.
.THURSDAY NIGHT...EAST WINDS 20 TO 30 KNOTS. SNOW. WAVES BUILDING TO
3 TO 5 FEET... THEN SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTHEAST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES TO
35 KNOTS BY MID AFTERNOON. SNOW LIKELY THROUGH EARLY AFTERNOON...
THEN A CHANCE OF SNOW. WAVES 2 TO 4 FEET.
.FRIDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.

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

$$

LSZ265-230415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
408 PM EDT TUE APR 22 2014

.LATE THIS AFTERNOON...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15
KNOTS BY MIDNIGHT.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT.
.THURSDAY...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW THROUGH EARLY
AFTERNOON...THEN SNOW. A SLIGHT CHANCE OF RAIN.
.THURSDAY NIGHT...EAST WINDS 20 TO 30 KNOTS. SNOW.
.FRIDAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW.
.FRIDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS.

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

$$

LSZ266-230415-
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-
408 PM EDT TUE APR 22 2014

.LATE THIS AFTERNOON...NORTHWEST WINDS 20 TO 30 KNOTS.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW THROUGH EARLY
AFTERNOON...THEN SNOW. A CHANCE OF RAIN.
.THURSDAY NIGHT...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW.
.FRIDAY...NORTHEAST WINDS 15 TO 25 KNOTS BACKING NORTH BY MID
AFTERNOON. SNOW LIKELY THROUGH EARLY AFTERNOON...THEN A CHANCE OF
SNOW.
.FRIDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS.

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

$$

LSZ267-230415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
408 PM EDT TUE APR 22 2014

.LATE THIS AFTERNOON...NORTHWEST WINDS 20 TO 30 KNOTS.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS.
.WEDNESDAY NIGHT...NORTH 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. A CHANCE OF RAIN...POSSIBLY MIXED WITH
SNOW BY MID AFTERNOON.
.THURSDAY NIGHT...EAST WINDS 20 TO 30 KNOTS INCREASING TO GALES
TO 35 KNOTS AFTER MIDNIGHT. SNOW.
.FRIDAY...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. SNOW LIKELY THROUGH EARLY AFTERNOON...THEN A CHANCE OF
SNOW.
.FRIDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST.

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

$$

LSZ261-230415-
MAFOR 2221/
SUPERIOR WEST 11500 11400 14300 11200 11210. WAVES 1 FOOT OR LESS.
WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR NORTH CENTRAL 12820 11810 11700 11600 12500 11410. WAVES 2
FEET OR LESS. WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR SOUTH CENTRAL 11740 11720 11710 14700 11300. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 11740 11830 11820 11810 12800 12710. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

$$

KLUBER





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