FZUS63 KMQT 091959 GLFLS OPEN LAKE FORECAST FOR LAKE SUPERIOR NATIONAL WEATHER SERVICE MARQUETTE MI 359 PM EDT SAT MAY 9 2009 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR .SYNOPSIS....29.5 INCH LOW PRESSURE CENTERED OVER THE EASTERN GREAT LAKES TREKS NORTHEAST THROUGH SUNDAY NIGHT...WHEN IT WILL EXIT THE CANADIAN MARITIMES. AS THIS HAPPENS...A TROUGH EXTENDS WESTWARD FROM THE LOW AND WILL DRAPE SLOWLY SOUTHWARD ACROSS LAKE SUPERIOR AND NORTHERN LAKE HURON THROUGH LATE SUNDAY EVENING. BY MIDNIGHT...30.3 INCH HIGH PRESSURE BUILDS IN FROM THE NORTHERN PLAINS...OVERTAKING THE GREAT LAKES REGION BY EARLY MONDAY...AND DOMINATING THROUGH TUESDAY MORNING. ON ITS HEELS...A 29.4 INCH LOW PRESSURE SYSTEM OVER SASKATCHEWAN EARLY TUESDAY WILL DEEPEN AS IT APPROACHES THE REGION. ON TUESDAY MORNING...A TIGHT PRESSURE GRADIENT SETS UP OVER WESTERN LAKE SUPERIOR...MOVING EAST THROUGH THE DAY...WITH THE LOW AT 29.2 INCHES AND OVER MANITOBA BY WEDNESDAY MORNING. ON WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING...THE LOW SHOOTS TO HUDSON BAY...DEEPENING FURTHER TO 29.0 INCHES...AND DRAGS A COLD FRONT ACROSS THE GREAT LAKES. LSZ162-263-100845- 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- 359 PM EDT SAT MAY 9 2009 /259 PM CDT SAT MAY 9 2009/ .LATE THIS AFTERNOON...WEST WINDS 5 TO 15 KNOTS. ISOLATED RAIN AND SNOW SHOWERS. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET. .TONIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST AFTER MIDNIGHT. ISOLATED RAIN AND SNOW SHOWERS THROUGH MIDNIGHT. WAVES CALM TO 2 FEET. .SUNDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID AFTERNOON. WAVES CALM TO 2 FEET. .SUNDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER MIDNIGHT. WAVES CALM TO 2 FEET. .MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID AFTERNOON. WAVES CALM TO 2 FEET. .MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET. .TUESDAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST 10 TO 20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON. WAVES CALM TO 2 FEET. .TUESDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 4 TO 7 FEET. .WEDNESDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO 20 KNOTS. RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS... THEN A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO 20 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET. $$ LSZ264-100845- LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 359 PM EDT SAT MAY 9 2009 .LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. ISOLATED RAIN AND SNOW SHOWERS. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET. .TONIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTH AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET. .SUNDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET. .SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET. .MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID AFTERNOON. WAVES CALM TO 2 FEET. .MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET. .TUESDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST BY MID AFTERNOON. WAVES CALM TO 2 FEET. .TUESDAY NIGHT...SOUTH WINDS TO 30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 4 TO 7 FEET. .WEDNESDAY...SOUTH WINDS TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS. RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET. $$ LSZ265-100845- LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE- 359 PM EDT SAT MAY 9 2009 .LATE THIS AFTERNOON...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED RAIN SHOWERS...POSSIBLY MIXED WITH SNOW AND DRIZZLE. WAVES 3 TO 5 FEET. .TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. ISOLATED RAIN AND SNOW SHOWERS THROUGH MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET. .SUNDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET. .SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST AFTER MIDNIGHT. WAVES CALM TO 2 FEET. .MONDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS BACKING SOUTHEAST BY MID AFTERNOON. WAVES CALM TO 2 FEET. .MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET. .TUESDAY...SOUTH WINDS 10 TO 20 KNOTS BACKING SOUTHEAST BY MID AFTERNOON. WAVES CALM TO 2 FEET. .TUESDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 2 TO 4 FEET. .WEDNESDAY...SOUTH WINDS TO 30 KNOTS DIMINISHING TO 10 TO 20 KNOTS. RAIN SHOWERS LIKELY. A CHANCE OF THUNDERSTORMS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO CALM TO 2 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET. $$ LSZ266-100845- LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER BEYOND 5NM FROM SHORE- 359 PM EDT SAT MAY 9 2009 .LATE THIS AFTERNOON...NORTHWEST WINDS 15 TO 25 KNOTS. ISOLATED RAIN AND SNOW SHOWERS. WAVES 3 TO 5 FEET. .TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS AFTER MIDNIGHT. ISOLATED RAIN AND SNOW SHOWERS THROUGH MIDNIGHT. WAVES 3 TO 5 FEET. .SUNDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO 15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET. .SUNDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET. .MONDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO 15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET. .MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET. .TUESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET. .TUESDAY NIGHT...SOUTH WINDS TO 30 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 4 TO 7 FEET. .WEDNESDAY...SOUTH WINDS TO 30 KNOTS. RAIN SHOWERS LIKELY. A CHANCE OF THUNDERSTORMS. WAVES BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 2 TO 4 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET. $$ LSZ267-100845- LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 359 PM EDT SAT MAY 9 2009 .LATE THIS AFTERNOON...NORTHWEST WINDS 15 TO 25 KNOTS. ISOLATED RAIN AND SNOW SHOWERS. WAVES 3 TO 5 FEET. .TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH AFTER MIDNIGHT. ISOLATED RAIN AND SNOW SHOWERS THROUGH MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET. .SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET. .SUNDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET. .MONDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST LESS THAN 10 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET. .MONDAY NIGHT...SOUTH WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET. .TUESDAY...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET. .TUESDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 4 TO 7 FEET. .WEDNESDAY...SOUTHEAST WINDS TO 30 KNOTS VEERING SOUTH. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 5 TO 8 FEET... THEN SUBSIDING TO 1 TO 3 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET. $$ LSZ261-100845- MAFOR 0921/ SUPERIOR WEST 11410 12510 11610 11710 11700 11610 11520. ISOLATED RAIN AND SNOW SHOWERS TONIGHT. WAVES 1 FOOT OR LESS. 220001. SUPERIOR NORTH CENTRAL 11720 11630 11730 11720 12810 11710 11620. ISOLATED RAIN AND SNOW SHOWERS THIS EVENING. WAVES CALM TO 4 FEET. 210204 210103. SUPERIOR SOUTH CENTRAL 14730 12720 12710. SCATTERED RAIN SHOWERS THROUGH TONIGHT...POSSIBLY MIXED WITH SNOW. WAVES 1 TO 6 FEET. 220305. SUPERIOR EAST 13730 13820 12720. SCATTERED RAIN SHOWERS THIS EVENING...POSSIBLY MIXED WITH SNOW. WAVES 2 TO 5 FEET. 220204. $$ KOLBUS