Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 232000
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
400 PM EDT SAT AUG 23 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.1 INCH RIDGE OF HIGH PRESSURE ACROSS ACROSS LAKE
SUPERIOR WILL QUICKLY BE REPLACED BY A TROUGH...AS 29.6 INCH LOW
PRESSURE OVER THE NORTHERN AND CENTRAL PLAINS MOVES ACROSS NORTH
DAKOTA AND SOUTHERN MANITOBA ON SUNDAY. LOOK FOR THE LOW TO SLOWLY
SHIFT WEST TO EAST ACROSS MANITOBA ON MONDAY...WHILE DRAGGING A 29.9
INCH TROUGH ACROSS LAKE SUPERIOR. AS THE LOW PRESSURE SYSTEM EXITS
INTO QUEBEC ON TUESDAY...HIGH PRESSURE AVERAGING 30.2 INCHES WILL
SETTLE INTO THE UPPER GREAT LAKES TUESDAY THROUGH THURSDAY.

LSZ162-240400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
400 PM EDT SAT AUG 23 2014 /300 PM CDT SAT AUG 23 2014/

.LATE THIS AFTERNOON...NORTHEAST WINDS 10 TO 20 KNOTS. PATCHY
FOG. ISOLATED SHOWERS. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS. PATCHY FOG. ISOLATED
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH AFTER
MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. WAVES
CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ263-240400-
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-
400 PM EDT SAT AUG 23 2014

.LATE THIS AFTERNOON...NORTHEAST WINDS 10 TO 20 KNOTS. PATCHY
FOG. ISOLATED SHOWERS. WAVES 1 TO 3 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS. PATCHY FOG. ISOLATED
SHOWERS. ISOLATED THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST BY MID
AFTERNOON. AREAS OF FOG. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH
EARLY AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. WAVES
CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ264-240400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
400 PM EDT SAT AUG 23 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG.
ISOLATED SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. AREAS OF FOG. ISOLATED SHOWERS BY MID
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING SOUTH
10 TO 20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH
EARLY AFTERNOON. PATCHY FOG. WAVES SUBSIDING TO 1 TO 3 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
1 TO 3 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ265-240400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
400 PM EDT SAT AUG 23 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.LATE THIS AFTERNOON...EAST WINDS 10 TO 20 KNOTS. PATCHY FOG.
ISOLATED SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG. ISOLATED
SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. AREAS OF FOG THROUGH MIDNIGHT. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO 15 KNOTS
BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-240400-
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-
400 PM EDT SAT AUG 23 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG.
ISOLATED SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG. WAVES
BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
15 TO 25 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FEET.
.MONDAY...SOUTH 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.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. WAVES
BUILDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ267-240400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
400 PM EDT SAT AUG 23 2014

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG.
WAVES CALM TO 2 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. WAVES CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG. WAVES
BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES
1 TO 3 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. PATCHY FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-240400-
MAFOR 2321/
SUPERIOR WEST 12120 14220 11220 11210. PATCHY FOG. ISOLATED RAIN
SHOWERS AND THUNDERSTORMS OVERNIGHT AND SUNDAY. WAVES 2 TO 4 FEET.

SUPERIOR NORTH CENTRAL 13213 11313 14323. DENSE FOG ADVISORY IN
EFFECT. AREAS OF FOG. WAVES 4 FEET OR LESS.

SUPERIOR SOUTH CENTRAL 13210 11310 11320 11323 12320. PATCHY FOG.
SCATTERED RAIN SHOWERS THIS EVENING. AREAS OF FOG SUNDAY. WAVES 1 TO
3 FEET.

SUPERIOR EAST 13213 14313 11323. DENSE FOG ADVISORY IN EFFECT. AREAS
OF FOG. WAVES 2 FEET OR LESS.

$$

KF




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