Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 212006
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
406 PM EDT MON APR 21 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.8 INCH TROUGH OVER CENTRAL LAKE SUPERIOR LATE THIS
AFTERNOON WILL MOVE EASTWARD THROUGH THIS EVENING. HIGH PRESSURE OF
30.1 INCHES WILL EXPAND OVER THE UPPER GREAT LAKES THROUGH
WEDNESDAY...AND SETTLE OVER THE LOWER GREAT LAKES ON THURSDAY. LOW
PRESSURE OF 29.4 INCHES OVER MANITOBA THURSDAY WILL MOVE OVER THE
UPPER GREAT LAKES BY THURSDAY EVENING...MERGING WITH A SECONDARY LOW
OF 29.5 INCHES FROM IOWA. THE SYSTEM WILL WEAKEN TO 29.7 INCHES
FRIDAY AS IT CROSSES LAKE HURON...THEN CONTINUE ONWARD INTO THE LOWER
LAKES BY FRIDAY NIGHT. IN ITS WAKE...HIGH PRESSURE OF 30.3 INCHES
CENTERED OVER NORTHERN MANITOBA FRIDAY AFTERNOON WILL DRIFT INTO
JAMES BAY BY SATURDAY AFTERNOON. THIS WILL BRING A 30.4 INCH RIDGE
INTO THE UPPER GREAT LAKES FOR FRIDAY EVENING AND SATURDAY.

LSZ162-220415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
406 PM EDT MON APR 21 2014 /306 PM CDT MON APR 21 2014/

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

$$

LSZ263-220415-
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-
406 PM EDT MON APR 21 2014

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

$$

LSZ264-220415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
406 PM EDT MON APR 21 2014

.LATE THIS AFTERNOON...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING
WEST. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS WITH A FEW GALE FORCE GUSTS TO 35 KNOTS BY MIDNIGHT.
WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS DIMINISHING TO LESS
THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS LESS THAN 10 KNOTS BECOMING SOUTHEAST
5 TO 15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 15 TO 25 KNOTS BACKING EAST BY MID
AFTERNOON. A CHANCE OF SNOW THROUGH EARLY AFTERNOON. SNOW BY MID
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...EAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW. WAVES SUBSIDING TO 1 TO 3 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.FRIDAY...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 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.

$$

LSZ265-220415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
406 PM EDT MON APR 21 2014

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST.
ISOLATED RAIN SHOWERS.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30
KNOTS WITH A FEW GALE FORCE GUSTS TO 35 KNOTS AFTER MIDNIGHT.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE
MORNING.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
LESS THAN 10 KNOTS AFTER MIDNIGHT.
.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.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS BY MID AFTERNOON. SNOW. RAIN BY MID AFTERNOON.
.THURSDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. RAIN AND SNOW.
.FRIDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW LIKELY...THEN 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.

$$

LSZ266-220415-
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-
406 PM EDT MON APR 21 2014

.LATE THIS AFTERNOON...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST.
AREAS OF FOG. ISOLATED RAIN SHOWERS.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30
KNOTS WITH A FEW GALE FORCE GUSTS TO 35 KNOTS AFTER MIDNIGHT.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE MORNING.
FLURRIES THROUGH EARLY AFTERNOON.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING EAST LESS THAN
10 KNOTS BY MID AFTERNOON.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
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. SNOW BY MID AFTERNOON.
.THURSDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. RAIN THROUGH
MIDNIGHT. SNOW.
.FRIDAY...NORTH WINDS 15 TO 25 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.

$$

LSZ267-220415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
406 PM EDT MON APR 21 2014

.LATE THIS AFTERNOON...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING
SOUTHWEST. AREAS OF FOG. ISOLATED RAIN SHOWERS.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. AREAS OF FOG THROUGH MIDNIGHT. ISOLATED
RAIN SHOWERS THROUGH MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE OR
FLURRIES AFTER MIDNIGHT.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE...FREEZING DRIZZLE OR
FLURRIES THROUGH EARLY AFTERNOON.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH BY MID
AFTERNOON.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
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...SOUTHEAST WINDS 15 TO 25 KNOTS. RAIN...POSSIBLY
MIXED WITH SNOW.
.FRIDAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. SNOW LIKELY...THEN A CHANCE OF SNOW.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS.

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

$$

LSZ261-220415-
MAFOR 2121/
SUPERIOR WEST 11730 12740 13720 11610 11500. WAVES 1 FOOT OR LESS
BUILDING TO 1 TO 4 FEET TONIGHT. WAVES 2 FEET OR LESS TUESDAY. WAVE
HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR NORTH CENTRAL 11510 13740 12840 12730. WAVES 1 FOOT OR LESS
BUILDING TO 3 TO 5 FEET TONIGHT. WAVES SUBSIDING TO 1 TO 3 FEET
TUESDAY. WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

SUPERIOR SOUTH CENTRAL 11620 11640 11740 12740 19750 13740. ISOLATED
RAIN SHOWERS LATE THIS AFTERNOON. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

SUPERIOR EAST 11113 11623 11730 12740 12840 11740. ISOLATED RAIN
SHOWERS THIS EVENING. SLIGHT CHANCE OF DRIZZLE...LIGHT FREEZING
DRIZZLE OR FLURRIES TUESDAY MORNING. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

$$

KLUBER





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