Great Lakes Forecast
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000
FZUS63 KMQT 290819
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
419 AM EDT FRI AUG 29 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...30.2 INCH HIGH PRESSURE CENTERED OVER FAR SOUTHEASTERN
ONTARIO WILL TRACK EAST TO THE NEW ENGLAND STATES TODAY.
MEANWHILE...A 29.8 INCH LOW JUST TO THE WEST OF SIOUX FALLS WILL
SLOWLY LIFT TO THE NORTHEAST TODAY AND TONIGHT. THIS LOW WILL MOVE
ACROSS NORTHERN LAKE MICHIGAN SATURDAY EVENING AND INTO SOUTHERN
QUEBEC ON SUNDAY. A 29.9 INCH RIDGE STRETCHING SOUTHWEST FROM A 30.0
INCH HIGH NEAR JAMES BAY WILL BRIEFLY BUILD ACROSS LAKE SUPERIOR
SATURDAY NIGHT INTO SUNDAY. ALSO ON SUNDAY...AN ELONGATED TROUGH OF
29.5 INCHES STRETCHING FROM NORTHERN SASKATCHEWAN THROUGH THE DAKOTAS
WILL START TO LIFT TO THE NORTHEAST. THE NORTHERN EDGE OF THE TROUGH
WILL STRENGTHEN TO 29.1 INCHES BY MONDAY AS IT MOVES NEAR THE
SOUTHWEST SIDE OF HUDSON BAY. AT THE SAME TIME...A 29.6 INCH TROUGH
WILL SLIDE EAST ACROSS THE UPPER GREAT LAKES REGION. BEHIND THE
TROUGH ON TUESDAY...THE UPPER GREAT LAKES REGION WILL BE BETWEEN THE
STRONG 29.0 INCH LOW OVER HUDSON BAY AND A 30.0 INCH HIGH OVER THE
SOUTHEAST UNITED STATES.

LSZ162-291630-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
419 AM EDT FRI AUG 29 2014 /319 AM CDT FRI AUG 29 2014/

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

$$

LSZ263-291630-
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-
419 AM EDT FRI AUG 29 2014

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

$$

LSZ264-291630-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
419 AM EDT FRI AUG 29 2014

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET.
.TODAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. SCATTERED SHOWERS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...NORTH WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO
CALM TO 2 FEET.
.SATURDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES
CALM TO 2 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON.
WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. SHOWERS AND THUNDERSTORMS LIKELY. WAVES SUBSIDING TO
1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.

$$

LSZ265-291630-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
419 AM EDT FRI AUG 29 2014

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

$$

LSZ266-291630-
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-
419 AM EDT FRI AUG 29 2014

.EARLY THIS MORNING...SOUTH WINDS 10 TO 20 KNOTS. ISOLATED
SHOWERS. WAVES 1 TO 3 FEET.
.TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS. NUMEROUS SHOWERS THROUGH
EARLY AFTERNOON...THEN SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS BY MID AFTERNOON. PATCHY FOG BY MID AFTERNOON.
WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. AREAS OF FOG. SHOWERS AND A CHANCE OF THUNDERSTORMS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. AREAS OF FOG. SHOWERS THROUGH EARLY
AFTERNOON. A CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT. AREAS OF FOG. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST BY MID
AFTERNOON. AREAS OF FOG THROUGH EARLY AFTERNOON. WAVES CALM TO
2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS. SHOWERS AND THUNDERSTORMS LIKELY. WAVES BUILDING TO
3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.

$$

LSZ267-291630-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
419 AM EDT FRI AUG 29 2014

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

$$

LSZ261-291630-
MAFOR 2909/
SUPERIOR WEST 12310 11316 11200 13100 11800. ISOLATED RAIN SHOWERS
EARLY THIS MORNING. PATCHY FOG OVERNIGHT. SCATTERED RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS TONIGHT. WAVES 2 FEET OR LESS.

SUPERIOR NORTH CENTRAL 12420 13320 11300 11806 11800. SCATTERED RAIN
SHOWERS TODAY. AREAS OF FOG TONIGHT. CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS TONIGHT. WAVES 1 TO 4 FEET TODAY...SUBSIDING TO 1 FOOT
OR LESS TONIGHT.

SUPERIOR SOUTH CENTRAL 11420 11320 11326 12320 12416 11606.
SCATTERED RAIN SHOWERS THIS MORNING. ISOLATED THUNDERSTORMS THIS
AFTERNOON. PATCHY FOG OVERNIGHT. A CHANCE OF THUNDERSTORMS TONIGHT.
WAVES 2 TO 3 FEET TODAY...SUBSIDING TO 1 FOOT OR LESS TONIGHT.

SUPERIOR EAST 11410 11310 12326 11320 11420 11426 11516. SCATTERED
RAIN SHOWERS THIS MORNING. AREAS OF FOG TONIGHT. SCATTERED RAIN
SHOWERS IN THE EVENING. CHANCE OF THUNDERSTORMS TONIGHT. WAVES 1 TO 4
FEET.

$$

SRF






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