Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 220130
GLFLS

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

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.7 INCH TROUGH OVER FAR EASTERN LAKE SUPERIOR LATE
THIS EVENING WILL MOVE EASTWARD OVERNIGHT. HIGH PRESSURE OF 30.1
INCHES OVER THE NORTHERN PLAINS WILL THEN 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.

LSZ162-220930-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
930 PM EDT MON APR 21 2014 /830 PM CDT MON APR 21 2014/

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES 2 TO 4 FEET 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.

$$

LSZ263-220930-
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-
930 PM EDT MON APR 21 2014

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES 2 TO 4 FEET 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.

$$

LSZ264-220930-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
930 PM EDT MON APR 21 2014

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH
AFTER MIDNIGHT. A FEW GALE FORCE GUSTS TO 35 KNOTS. WAVES 1 TO 3
FEET 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.

$$

LSZ265-220930-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
930 PM EDT MON APR 21 2014

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS WITH A FEW GALE
FORCE GUSTS TO 35 KNOTS.
.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.

$$

LSZ266-220930-
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-
930 PM EDT MON APR 21 2014

.REST OF TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS WITH A FEW GALE
FORCE GUSTS TO 35 KNOTS.
.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.

$$

LSZ267-220930-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
930 PM EDT MON APR 21 2014

.REST OF TONIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. AREAS OF FOG 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.

$$
LSZ261-220930-
MAFOR 2203/
SUPERIOR WEST 11740 13720 11610 12500 11400. WAVES 1 TO 4 FEET
OVERNIGHT SUBSIDING TO 2 FEET OR LESS TUESDAY AND TUESDAY EVENING.

SUPERIOR NORTH CENTRAL 12740 12840 13730 11720. WAVES 2 TO 5 FEET
OVERNIGHT SUBSIDING TO 1 TO 3 FEET TUESDAY. WAVES 2 FEET OR LESS
TUESDAY EVENING.

SUPERIOR SOUTH CENTRAL 11740 12740 19750 14740 11720. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 11730 12740 12840 12740 11730. SLIGHT CHANCE OF
DRIZZLE...FREEZING DRIZZLE OR FLURRIES TUESDAY MORNING. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

KLUBER





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