Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 281950
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
350 PM EDT SUN SEP 28 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A LOW PRESSURE TROUGH OF 30.0 INCHES STRETCHING WEST TO
EAST ACROSS NORTHERN LAKE SUPERIOR WILL MOVE SOUTHWARD ACROSS UPPER
MICHIGAN TONIGHT. IN ITS WAKE...30.4 INCH HIGH PRESSURE WILL
BUILD OVER NORTHERN ONTARIO TONIGHT. ALTHOUGH THE HIGH WILL MOVE TO
THE CANADIAN MARITIMES BY MONDAY NIGHT...IT WILL EXTEND A 30.2 INCH
RIDGE WESTWARD OVER NORTHERN ONTARIO AND THE UPPER GREAT LAKES
THROUGH TUESDAY. THE RIDGE WILL THEN SHIFT TO THE EAST COAST BY
WEDNESDAY NIGHT AS LOW PRESSURE OF 29.4 INCHES OVER WESTERN SOUTH
DAKOTA TUESDAY MORNING LIFTS INTO MANITOBA BY WEDNESDAY AFTERNOON. A
29.7 INCH TROUGH ASSOCIATED WITH THE LOW WILL MOVE EAST...REACHING
WESTERN LAKE SUPERIOR ON THURSDAY. ANOTHER 29.3 INCH LOW WILL FORM ON
THIS TROUGH AS IT CROSSES LAKE SUPERIOR AND NORTHERN ONTARIO ON
FRIDAY.

LSZ162-290400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
350 PM EDT SUN SEP 28 2014 /250 PM CDT SUN SEP 28 2014/

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT
CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT...THEN RAIN SHOWERS LIKELY. WAVES BUILDING TO 6 TO
9 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO
4 TO 7 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ263-290400-
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-
350 PM EDT SUN SEP 28 2014

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG.
A SLIGHT CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT...THEN RAIN SHOWERS LIKELY. WAVES BUILDING TO 6 TO
10 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A
SLIGHT CHANCE OF RAIN. WAVES SUBSIDING TO 4 TO 7 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE
OF RAIN SHOWERS THROUGH MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY. WAVES SUBSIDING TO CALM
TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 4 TO
7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.

$$

LSZ264-290400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
350 PM EDT SUN SEP 28 2014

.LATE THIS AFTERNOON...NORTHEAST WINDS 10 TO 20 KNOTS. PATCHY
FOG. A SLIGHT CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. PATCHY FOG. RAIN SHOWERS. WAVES BUILDING
TO 6 TO 10 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS WITH GALE FORCE GUSTS TO 35
KNOTS POSSIBLE. WINDS DIMINISHING TO 15 TO 25 KNOTS BY MID
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A SLIGHT CHANCE OF
RAIN. WAVES SUBSIDING TO 5 TO 8 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT. WAVES SUBSIDING TO 3 TO 5 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. SHOWERS LIKELY.
WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 3 TO
6 FEET.

$$

LSZ265-290400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
350 PM EDT SUN SEP 28 2014

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS
THROUGH MIDNIGHT...THEN WIDESPREAD SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 5 TO 8 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS. PATCHY FOG THROUGH
EARLY AFTERNOON. RAIN LIKELY THROUGH EARLY AFTERNOON...THEN A
SLIGHT CHANCE OF RAIN. WAVES BUILDING TO 5 TO 9 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS.
WAVES SUBSIDING TO 3 TO 6 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST. SHOWERS
LIKELY. A CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.

$$

LSZ266-290400-
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-
350 PM EDT SUN SEP 28 2014

.LATE THIS AFTERNOON...NORTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT...THEN WIDESPREAD SHOWERS AFTER MIDNIGHT. WAVES BUILDING
TO 6 TO 9 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS WITH GALE FORCE GUSTS TO 35
KNOTS POSSIBLE. PATCHY FOG THROUGH EARLY AFTERNOON. A CHANCE OF
RAIN. WAVES SUBSIDING TO 5 TO 8 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE
OF RAIN SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST. SHOWERS
LIKELY. A CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 5 TO 9 FEET.

$$

LSZ267-290400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
350 PM EDT SUN SEP 28 2014

.LATE THIS AFTERNOON...NORTH WINDS LESS THAN 10 KNOTS. PATCHY
FOG. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON.
RAIN THROUGH EARLY AFTERNOON...THEN A CHANCE OF RAIN. WAVES BUILDING
TO 4 TO 7 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE
OF RAIN SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. SHOWERS LIKELY. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS. RAIN SHOWERS LIKELY...THEN A CHANCE OF RAIN SHOWERS.
WAVES BUILDING TO 5 TO 9 FEET.

$$

LSZ261-290400-
MAFOR 2821/
SUPERIOR WEST 11420 11140 13146 13140. PATCHY FOG TONIGHT AND
MONDAY MORNING. CHANCE OF RAIN SHOWERS THIS EVENING. CHANCE OF RAIN
SHOWERS MONDAY. WAVES 1 FOOT OR LESS BUILDING TO 6 TO 9 FEET TONIGHT.
WAVES 7 TO 10 FEET MONDAY.

SUPERIOR NORTH CENTRAL 11130 11140 13146 13140. PATCHY FOG TONIGHT
AND MONDAY MORNING. CHANCE OF RAIN SHOWERS THIS EVENING. SLIGHT
CHANCE OF RAIN MONDAY AFTERNOON. WAVES 1 FOOT OR LESS BUILDING TO 7
TO 10 FEET TONIGHT. WAVES 7 TO 10 FEET MONDAY.

SUPERIOR SOUTH CENTRAL 11200 11210 11120 11130 11136 11146 12130.
PATCHY FOG TONIGHT AND MONDAY MORNING. CHANCE OF RAIN SHOWERS TONIGHT.
CHANCE OF RAIN MONDAY AFTERNOON. WAVES 2 FEET OR LESS BUILDING TO 4
TO 6 FEET TONIGHT. WAVES 7 TO 10 FEET MONDAY.

SUPERIOR EAST 11800 11130 12140 13146 11140. PATCHY FOG. SLIGHT
CHANCE OF RAIN SHOWERS TONIGHT. CHANCE OF RAIN MONDAY AFTERNOON.
WAVES 2 FEET OR LESS BUILDING TO 4 TO 6 FEET TONIGHT. WAVES 5 TO 8
FEET MONDAY.

$$

RJT





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