Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 250807
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
407 AM EDT WED MAR 25 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...TWO AREAS OF 29.7 INCH LOW PRESSURE ACROSS NORTHERN
MINNESOTA AND SOUTHERN LAKE MICHIGAN WILL MERGE OVER LAKE SUPERIOR
THIS AFTERNOON...AND SHIFT EAST ACROSS ONTARIO BY THE END OF THE DAY
AT 29.6 INCHES. A LINGERING 29.8 INCH TROUGH ACROSS LAKE SUPERIOR
WILL EXIT TO THE SOUTHEAST THURSDAY MORNING. EXPECT 30.5 INCH LOW
PRESSURE OVER MANITOBA ON THURSDAY TO BRIEFLY SETTLE ACROSS THE UPPER
GREAT LAKES AT 30.3 INCHES FRIDAY INTO EARLY SATURDAY...AND CONTINUE
TO THE OHIO VALLEY SATURDAY NIGHT. 29.3 INCH LOW PRESSURE STRETCHING
FROM HUDSON BAY TO SOUTHERN MANITOBA SATURDAY NIGHT WILL THEN SWING
ACROSS CENTRAL ONTARIO AND LAKE SUPERIOR SUNDAY AFTERNOON...AND INTO
QUEBEC SUNDAY NIGHT.

LSZ162-251615-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
407 AM EDT WED MAR 25 2015

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. SNOW LIKELY.
WAVES CALM TO 2 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. WAVES CALM TO
2 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 1 TO 3 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN. WAVES
BUILDING TO 3 TO 6 FEET.
.SUNDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

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

$$

LSZ263-251615-
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-
407 AM EDT WED MAR 25 2015

.EARLY THIS MORNING...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF
SNOW. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.
.TODAY...SOUTH WINDS 5 TO 15 KNOTS VEERING WEST BY MID AFTERNOON.
SNOW LIKELY THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT. SNOW SHOWERS LIKELY. WAVES BUILDING TO 3 TO 6 FEET.
.THURSDAY...NORTH 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.
SNOW SHOWERS LIKELY THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW
SHOWERS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 1 TO
3 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST LESS THAN
10 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTH WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN. WAVES
BUILDING TO 4 TO 7 FEET.
.SUNDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. A CHANCE OF RAIN. A CHANCE OF SNOW. WAVES BUILDING TO
5 TO 8 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

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

$$

LSZ264-251615-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
407 AM EDT WED MAR 25 2015

.EARLY THIS MORNING...SOUTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW.
.TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. SNOW THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW
BY MID AFTERNOON.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS THROUGH
MIDNIGHT...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS THROUGH EARLY AFTERNOON. SNOW SHOWERS LIKELY THROUGH EARLY
AFTERNOON...THEN A CHANCE OF SNOW SHOWERS BY MID AFTERNOON.
.THURSDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW.
.SUNDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. SNOW LIKELY.

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

$$

LSZ265-251615-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
407 AM EDT WED MAR 25 2015

.EARLY THIS MORNING...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW. WAVES CALM TO 2 FEET.
.TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. SNOW THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS THROUGH
MIDNIGHT...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES
BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS THROUGH EARLY AFTERNOON. SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.THURSDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...WEST GALES TO 40 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. SNOW...POSSIBLY MIXED WITH RAIN...THEN A CHANCE OF
SNOW...POSSIBLY MIXED WITH RAIN. WAVES BUILDING TO 3 TO 6 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.

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

$$

LSZ266-251615-
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-
407 AM EDT WED MAR 25 2015

.EARLY THIS MORNING...SOUTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW.
.TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST BY MID
AFTERNOON. SNOW THROUGH EARLY AFTERNOON...THEN A CHANCE OF SNOW
BY MID AFTERNOON.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS THROUGH
MIDNIGHT...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS TO 35
KNOTS THROUGH EARLY AFTERNOON. SNOW SHOWERS.
.THURSDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT.
.SATURDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 20 TO
30 KNOTS. A CHANCE OF SNOW.
.SUNDAY...SOUTHWEST GALES TO 40 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS. SNOW LIKELY...THEN A CHANCE OF SNOW.

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

$$

LSZ267-251615-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
407 AM EDT WED MAR 25 2015

.EARLY THIS MORNING...SOUTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF FREEZING RAIN AND SNOW.
.TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING WEST BY MID
AFTERNOON. SNOW...POSSIBLY MIXED WITH FREEZING RAIN THROUGH EARLY
AFTERNOON...THEN A CHANCE OF SNOW BY MID AFTERNOON.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS THROUGH MIDNIGHT...THEN SNOW
SHOWERS LIKELY AFTER MIDNIGHT.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. SNOW SHOWERS LIKELY.
.THURSDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 15 TO
25 KNOTS.
.SUNDAY...SOUTHWEST GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS. SNOW LIKELY...THEN A CHANCE OF SNOW.

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

$$

LSZ261-251615-
MAFOR 2509/
SUPERIOR WEST 11427 12417 11500 12620 11730 11747. CHANCE OF SNOW
THIS AFTERNOON THROUGH LATE TONIGHT. CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WAVES 2 FEET OR LESS TODAY. WAVES 1 TO 3 FEET BUILDING TO
3 TO 5 FEET TONIGHT.

SUPERIOR NORTH CENTRAL 11320 11327 11317 11400 11610 11700 11720
11747. CHANCE OF SNOW SHOWERS TONIGHT. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

SUPERIOR SOUTH CENTRAL 11310 12317 11500 11610 11710 11700 11720.
CHANCE OF SNOW THIS AFTERNOON THROUGH TONIGHT. WAVES 2 FEET OR LESS.

SUPERIOR EAST 11320 12327 11417 12610 11600 11710. SLIGHT CHANCE OF
LIGHT FREEZING RAIN THIS MORNING. CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT TONIGHT. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

KF



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