Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 140159
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
959 PM EDT SUN APR 13 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.4 INCH LOW PRESSURE SYSTEM OVER FAR NORTHWEST
ILLINOIS THIS EVENING WILL TRACK ALONG A 29.6 INCH TROUGH ACROSS
WISCONSIN AND LOWER MICHIGAN THROUGH MONDAY...REACHING SOUTHERN
QUEBEC AT 29.3 INCHES BY MONDAY AFTERNOON. MEANWHILE...30.5 INCH HIGH
PRESSURE WILL BUILD ACROSS SOUTH CENTRAL CANADA. A 30.1 INCH RIDGE
EXTENDING FROM THE HIGH WILL DRIFT ACROSS THE UPPER MISSISSIPPI
VALLEY TUESDAY AND THE GREAT LAKES REGION TUESDAY NIGHT. 29.6 INCH
LOW PRESSURE OVER THE CENTRAL PLAINS WEDNESDAY MORNING WILL EXTEND A
30.1 INCH TROUGH ACROSS LAKE SUPERIOR WEDNESDAY NIGHT THROUGH FRIDAY.
MEANWHILE...A 30.6 INCH HIGH PRESSURE WILL BUILD ACROSS NORTHERN
ONTARIO.

LSZ162-141000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
959 PM EDT SUN APR 13 2014 /859 PM CDT SUN APR 13 2014/

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS. WAVES CALM TO
2 FEET BUILDING TO 2 TO 4 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO
2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 2 TO 4 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES CALM TO 2 FEET.

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

$$

LSZ263-141000-
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-
959 PM EDT SUN APR 13 2014

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT.
WAVES CALM TO 2 FEET BUILDING TO 3 TO 6 FEET.
.MONDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW BY MID
AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO
5 FEET.
.MONDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING SOUTHEAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO
2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 2 TO 4 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES CALM TO 2 FEET.

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

$$

LSZ264-141000-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
959 PM EDT SUN APR 13 2014

...GALE WARNING IN EFFECT FROM 8 AM EDT MONDAY THROUGH MONDAY
AFTERNOON...

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
20 TO 30 KNOTS AFTER MIDNIGHT. A FEW GALE FORCE GUSTS TO 35 KNOTS
LATE. A SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES CALM TO 2 FEET
BUILDING TO 5 TO 8 FEET.
.MONDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW BY MID AFTERNOON. WAVES
SUBSIDING TO 3 TO 5 FEET.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING SOUTH
LESS THAN 10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO
1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES CALM TO 2 FEET.

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

$$

LSZ265-141000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
959 PM EDT SUN APR 13 2014

...GALE WARNING IN EFFECT FROM 8 AM EDT MONDAY THROUGH MONDAY
AFTERNOON...

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW BY LATE
EVENING. A CHANCE OF SNOW OVERNIGHT.
.MONDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW THROUGH
EARLY AFTERNOON...THEN SNOW LIKELY BY MID AFTERNOON.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF SNOW.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. A CHANCE OF RAIN SHOWERS.

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

$$

LSZ266-267-141000-
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-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
959 PM EDT SUN APR 13 2014

...GALE WARNING IN EFFECT FROM 8 AM EDT MONDAY THROUGH MONDAY
AFTERNOON...

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW BY MIDNIGHT...
THEN SNOW LIKELY LATE.
.MONDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY MID AFTERNOON. A CHANCE OF SNOW.
.MONDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY MID
AFTERNOON. A CHANCE OF SNOW THROUGH EARLY AFTERNOON...THEN SNOW
LIKELY BY MID AFTERNOON.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.FRIDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. A CHANCE OF RAIN SHOWERS.

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

$$

LSZ261-141000-
MAFOR 1403/
SUPERIOR WEST 14830 11830 11820 12720. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11730 11840 11840
19850 12850 11840 12830. SLIGHT CHANCE OF SNOW OVERNIGHT AND MONDAY
MORNING. SLIGHT CHANCE OF SNOW SHOWERS MONDAY EVENING. WAVES 2 FEET
OR LESS BUILDING TO 5 TO 7 FEET OVERNIGHT. WAVES 4 TO 8 FEET MONDAY
SUBSIDING TO 2 TO 5 FEET MONDAY EVENING.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11830 13840 12850
11840 11730. CHANCE OF RAIN LATE THIS EVENING THEN CHANCE OF SNOW
OVERNIGHT. CHANCE OF SNOW MONDAY. SLIGHT CHANCE OF SNOW SHOWERS
MONDAY EVENING. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST...GALE WARNING IN EFFECT...11820 11837 11847 11857
11850 13840. SNOW LIKELY OVERNIGHT AND MONDAY MORNING THEN CHANCE OF
SNOW MONDAY AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS MONDAY EVENING.
WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

KC




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