NWS Forecast

FZUS63 KMQT 281352
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
952 AM EDT THU AUG 28 2008

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

SYNOPSIS
EXPECT A 29.7 INCH LOW PRESSURE TROUGH TO CROSS LAKE
SUPERIOR THIS AFTERNOON AND EVENING...IN ADVANCE OF A 30.0 INCH
RIDGE THAT WILL MOVE INTO THE UPPER GREAT LAKES ON FRIDAY. A WEAK
29.9 INCH LOW PRESSURE TROUGH WILL MOVE THROUGH LAKE SUPERIOR ON
FRIDAY NIGHT. LOOK FOR A 30.1 INCH HIGH PRESSURE RIDGE TO FOLLOW
INTO THE UPPER GREAT LAKES ON SATURDAY...AND THEN BUILD TO 30.2
INCHES ON SUNDAY WHILE DRIFTING OVER LAKE HURON. AS THIS HIGH MOVES
INTO THE EASTERN GREAT LAKES ON MONDAY...A 29.5 INCH LOW PRESSURE
TROUGH WILL TAKE SHAPE OVER THE NORTHERN PLAINS.

LSZ162-263-282045-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
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-
952 AM EDT THU AUG 28 2008 /852 AM CDT THU AUG 28 2008/

REST OF TODAY
SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST BY
MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH EARLY AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO CALM TO 2
FEET.

TONIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST BY
MIDNIGHT. WAVES CALM TO 2 FEET.

FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY EARLY
AFTERNOON...THEN INCREASING TO 10 TO 20 KNOTS LATE. WAVES CALM TO
2 FEET.

FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

SATURDAY
NORTHWEST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.

SATURDAY NIGHT
SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.

SUNDAY
SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
WAVES BUILDING TO 1 TO 3 FEET.

MONDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.

LSZ264-282045-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
952 AM EDT THU AUG 28 2008

REST OF TODAY
SOUTH WINDS 15 TO 25 KNOTS VEERING WEST BY MID
AFTERNOON. SCATTERED SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
DIMINISHING BY EARLY AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 1
TO 3 FEET.

TONIGHT
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.

FRIDAY
WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS BY
LATE MORNING...THEN BACKING SOUTHWEST 10 TO 20 KNOTS IN THE
AFTERNOON. WAVES CALM TO 2 FEET.

FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.

SATURDAY
NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.

SATURDAY NIGHT
SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

SUNDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.

MONDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.

LSZ265-282045-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
952 AM EDT THU AUG 28 2008

REST OF TODAY
SOUTH WINDS 15 TO 20 KNOTS VEERING WEST THIS
AFTERNOON. SCATTERED SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
DIMINISHING DURING THE AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO
CALM TO 2 FEET.

TONIGHT
NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST BY
MIDNIGHT...THEN DIMINISHING TO 5 TO 15 KNOTS AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.

FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.

FRIDAY NIGHT
SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

SATURDAY
NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.

SATURDAY NIGHT
SOUTHEAST WINDS LESS THAN 10 KNOTS BECOMING
SOUTH 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.

SUNDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

MONDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

LSZ266-282045-
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-
952 AM EDT THU AUG 28 2008

REST OF TODAY
SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST 10
TO 20 KNOTS BY EARLY AFTERNOON...THEN VEERING WEST LATE.
SCATTERED SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES 4 TO 6 FEET
SUBSIDING TO 1 TO 3 FEET.

TONIGHT
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MIDNIGHT...THEN BACKING WEST LATE. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES SUBSIDING TO
CALM TO 2 FEET.

FRIDAY
WEST WINDS 5 TO 15 KNOTS BACKING SOUTH LATE. WAVES CALM
TO 2 FEET.

FRIDAY NIGHT
SOUTH WINDS 10 TO 20 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.

SATURDAY
NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.

SATURDAY NIGHT
WEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

SUNDAY
SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.

MONDAY
SOUTH WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET.

LSZ267-282045-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
952 AM EDT THU AUG 28 2008

REST OF TODAY
SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS LATE. SCATTERED SHOWERS AND A CHANCE OF THUNDERSTORMS.
WAVES 4 TO 6 FEET SUBSIDING TO 1 TO 3 FEET.

TONIGHT
WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST BY
MIDNIGHT...THEN NORTH AFTER MIDNIGHT. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.

FRIDAY
NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY EARLY AFTERNOON...THEN BECOMING WEST 5 TO 15 KNOTS
LATE. WAVES CALM TO 2 FEET.

FRIDAY NIGHT
SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.

SATURDAY
WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.

SATURDAY NIGHT
WEST WINDS 5 TO 15 KNOTS BACKING SOUTH AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.

SUNDAY
SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET.

MONDAY
SOUTH WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET.

LSZ261-282045-
MAFOR 2815/
SUPERIOR WEST 11520 12620 12510 12610 11710. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES 2 FEET OR LESS.
220002.

SUPERIOR NORTH CENTRAL 11530 13620 11610 12600 11610. SCATTERED
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS DIMINISHING THIS
AFTERNOON. WAVES 1 TO 5 FEET. 210305 210204.

SUPERIOR SOUTH CENTRAL 11520 11620 13710 13600. SCATTERED SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON. WAVES CALM TO 4
FEET. 210204 210103.

SUPERIOR EAST 12430 11620 11610 12710 12700. SCATTERED SHOWERS AND
A CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EVENING. WAVES 3 TO
6 FEET THIS AFTERNOON...SUBSIDING TO CALM TO 2 FEET BY FRIDAY
MORNING. 210406 210305.

SRF