Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 221348
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
948 AM EDT FRI APR 22 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...29.8 INCH LOW PRESSURE OVER FAR SOUTHERN QUEBEC WILL
SHIFT INTO NEW ENGLAND THIS AFTERNOON AS 30.3 INCH HIGH PRESSURE
WILL MOVE OVER THE UPPER GREAT LAKES. EXPECT THIS RIDGE TO SHIFT INTO
NEW ENGLAND ON SUNDAY WHILE A 29.4 INCH LOW PRESSURE DEVELOPS OVER
THE NORTHERN PLAINS AND EXTENDS A TROUGH EAST INTO THE UPPER MIDWEST.
MEANWHILE...ANOTHER 30.4 INCH HIGH PRESSURE OVER CENTRAL CANADA WILL
BUILD INTO NORTHERN ONTARIO ON MONDAY AS THE PLAINS LOW MOVES INTO
IOWA. THE LOW WILL MOVE THROUGH THE LOWER LAKES ON TUESDAY WHILE
WEAKENING TO 29.7 INCHES...ALLOWING THE ONTARIO HIGH TO EXPAND INTO
THE UPPER GREAT LAKES.

LSZ162-222100-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
948 AM EDT FRI APR 22 2016 /848 AM CDT FRI APR 22 2016/

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST
5 TO 15 KNOTS BY MID AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO
CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. A SLIGHT CHANCE OF RAIN. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. RAIN LIKELY. WAVES BUILDING TO
3 TO 5 FEET.
.SUNDAY...NORTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN. WAVES
BUILDING TO 6 TO 9 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
THROUGH MIDNIGHT. RAIN LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO
4 TO 7 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ263-222100-
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-
948 AM EDT FRI APR 22 2016

.REST OF TODAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES 2 TO 4 FEET
SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF SNOW
THROUGH EARLY AFTERNOON. A SLIGHT CHANCE OF RAIN. WAVES CALM TO
2 FEET.
.SATURDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN THROUGH
MIDNIGHT...THEN RAIN LIKELY...POSSIBLY MIXED WITH SNOW AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY...NORTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN. WAVES
BUILDING TO 5 TO 9 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN.
WAVES SUBSIDING TO 3 TO 6 FEET.
.MONDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-222100-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
948 AM EDT FRI APR 22 2016

.REST OF TODAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO
CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW.
WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN. A
SLIGHT CHANCE OF SNOW AFTER MIDNIGHT. WAVES BUILDING TO 1 TO
3 FEET.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN. WAVES BUILDING TO
3 TO 5 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING EAST
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET...
THEN BUILDING TO 3 TO 5 FEET.
.MONDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. WAVES
CALM TO 2 FEET.

$$

LSZ265-222100-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
948 AM EDT FRI APR 22 2016

.REST OF TODAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO
3 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
THROUGH MIDNIGHT...THEN RAIN LIKELY AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. RAIN LIKELY THROUGH EARLY AFTERNOON...THEN A
CHANCE OF RAIN BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.
WAVES 3 TO 5 FEET.
.MONDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

$$

LSZ266-222100-
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-
948 AM EDT FRI APR 22 2016

.REST OF TODAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO
3 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING EAST AFTER MIDNIGHT.
WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
RAIN BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST
AFTER MIDNIGHT. A CHANCE OF RAIN. A SLIGHT CHANCE OF SNOW AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
BY MID AFTERNOON. A CHANCE OF RAIN. WAVES BUILDING TO 3 TO
5 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.
WAVES 3 TO 5 FEET.
.MONDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-222100-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
948 AM EDT FRI APR 22 2016

.REST OF TODAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST BY
MID AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING EAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. A SLIGHT CHANCE
OF SNOW AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN. WAVES
BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN.
WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$
LSZ261-222100-
MAFOR 2215/
SUPERIOR WEST 11110 11200 11300 14200 11200. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11120 11810 11700 12600 11400 11300 11310.
WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11820 12810 11800 11700 11200 11300 11310.
WAVES 1 TO 4 FEET.

SUPERIOR EAST 12820 11720 11710 11810 11200 11210 11310. WAVES
1 TO 4 FEET.

$$

MZ



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