Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 241330
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
930 AM EDT TUE MAY 24 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.8 INCH LOW PRESSURE TROUGH JUST NORTH OF LAKE
SUPERIOR WILL DRIFT SOUTHEAST ACROSS THE UPPER GREAT LAKES TODAY TO
THE SOUTH OF 30.2 INCH HIGH PRESSURE BUILDING INTO NORTHWEST ONTARIO.
EXPECT THIS HIGH TO MOVE INTO NORTHERN QUEBEC ON WEDNESDAY WHILE A
29.6 INCH LOW PRESSURE DEVELOPS OVER THE NORTHERN PLAINS. THIS LOW
WILL DRIFT SLOWLY NORTHEAST INTO ONTARIO ON THURSDAY. YET ANOTHER
29.6 INCH LOW WILL TAKE SHAPE IN THE CENTRAL PLAINS ON FRIDAY AND
DRIFT TOWARD THE UPPER MISSISSIPPI RIVER VALLEY ON SATURDAY...EXTENDING
A LOW PRESSURE TROUGH AVERAGING 29.9 INCHES INTO THE UPPER LAKES
WHILE A 30.3 INCH HIGH PRESSURE BUILDS OVER HUDSON BAY.

LSZ162-242130-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
930 AM EDT TUE MAY 24 2016 /830 AM CDT TUE MAY 24 2016/

.REST OF TODAY...NORTHEAST WINDS LESS THAN 10 KNOTS INCREASING TO
5 TO 15 KNOTS BY MID AFTERNOON. WIDESPREAD FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. AREAS OF FOG. WAVES
CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS. PATCHY FOG THROUGH
EARLY AFTERNOON. A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH
MIDNIGHT. A CHANCE OF THUNDERSTORMS. A CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES SUBSIDING TO
1 TO 3 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS BECOMING
NORTHWEST 5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF THUNDERSTORMS
THROUGH MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS. WAVES
CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS...THEN
SHOWERS LIKELY. WAVES CALM TO 2 FEET.

$$

LSZ263-242130-
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 AM EDT TUE MAY 24 2016

.REST OF TODAY...NORTH WINDS LESS THAN 10 KNOTS BECOMING
NORTHEAST 5 TO 15 KNOTS BY MID AFTERNOON. WIDESPREAD FOG. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY MID AFTERNOON.
WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. PATCHY
FOG AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS...
THEN RAIN SHOWERS LIKELY. WAVES CALM TO 2 FEET.

$$

LSZ264-242130-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
930 AM EDT TUE MAY 24 2016

.REST OF TODAY...NORTHEAST WINDS LESS THAN 10 KNOTS INCREASING TO
5 TO 15 KNOTS BY MID AFTERNOON. WIDESPREAD FOG. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON.
WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH
AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST. A CHANCE
OF RAIN SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ265-242130-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
930 AM EDT TUE MAY 24 2016

.REST OF TODAY...SOUTH WINDS LESS THAN 10 KNOTS BECOMING NORTH
5 TO 15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND
THUNDERSTORMS. AREAS OF FOG BY MID AFTERNOON. WAVES CALM TO
2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. PATCHY FOG. WAVES
CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH
AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ266-242130-
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 AM EDT TUE MAY 24 2016

.REST OF TODAY...SOUTH WINDS LESS THAN 10 KNOTS BECOMING
NORTHEAST 5 TO 15 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND
THUNDERSTORMS. AREAS OF FOG BY MID AFTERNOON. WAVES CALM TO
2 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG THROUGH
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS THROUGH MIDNIGHT...THEN RAIN SHOWERS LIKELY AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG. A CHANCE OF
RAIN SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH
AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ267-242130-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
930 AM EDT TUE MAY 24 2016

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
LESS THAN 10 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT.
WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.
.THURSDAY...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. SHOWERS LIKELY THROUGH EARLY
AFTERNOON. A CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. A CHANCE OF RAIN SHOWERS. A CHANCE OF THUNDERSTORMS.
RAIN SHOWERS LIKELY. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.

$$
LSZ261-242130-
MAFOR 2415/
SUPERIOR WEST 12103 14113 11113 11110. CHANCE OF SHOWERS AND
THUNDERSTORMS TODAY. PATCHY FOG WEDNESDAY MORNING. WAVES CALM TO 3
FEET.

SUPERIOR NORTH CENTRAL 13103 11100 11110 11210 12200. CHANCE OF
SHOWERS AND THUNDERSTORMS TODAY. PATCHY FOG LATE THIS EVENING
THROUGH WEDNESDAY MORNING. WAVES 1 TO 2 FEET.

SUPERIOR SOUTH CENTRAL 11400 12803 14100 11200. CHANCE OF SHOWERS
AND THUNDERSTORMS TODAY. PATCHY FOG FROM OVERNIGHT. WAVES 2 FEET OR
LESS.

SUPERIOR EAST 11500 11800 12100 14110. CHANCE OF SHOWERS AND
THUNDERSTORMS TODAY. WAVES 1 TO 3 FEET.

$$

KEC


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