Issued by NWS
000 FZUS63 KMQT 071342 GLFLS OPEN LAKE FORECAST FOR LAKE SUPERIOR NATIONAL WEATHER SERVICE MARQUETTE MI 942 AM EDT TUE OCT 7 2008 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR .SYNOPSIS...A 30.5 INCH HIGH PRESSURE OVER THE EASTERN GREAT LAKES WILL GRADUALLY MOVE TO THE EAST COAST TODAY AND WEAKEN TO 30.3 INCHES. MEANWHILE...A COLD FRONT OVER MINNESOTA WILL WORK ITS WAY ACROSS LAKE SUPERIOR TONIGHT AND WEDNESDAY. BY THURSDAY...A LOW PRESSURE SYSTEM WILL DEEPEN TO 29.3 INCHES OVER HUDSON BAY WHILE A 30.1 INCH HIGH PRESSURE RIDGE MOVES THROUGH THE CENTRAL PLAINS. THIS RIDGE WILL BUILD INTO THE GREAT LAKES REGION ON FRIDAY. ANOTHER WEAK TROUGH AVERAGING 30.0 INCHES WILL SLIDE ACROSS LAKE SUPERIOR ON SATURDAY AND SATURDAY NIGHT. A 30.5 INCH HIGH WILL TRACK ACROSS NORTHERN ONTARIO ON SUNDAY AS THE TROUGH REMAINS ANCHORED OVER LAKE SUPERIOR. LSZ162-072030- LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5NM- 942 AM EDT TUE OCT 7 2008 /842 AM CDT TUE OCT 7 2008/ .REST OF TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH LATE. ISOLATED SHOWERS BECOMING NUMEROUS BY EARLY AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET. .TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS. SHOWERS LIKELY THROUGH MIDNIGHT...THEN JUST A CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES 1 TO 3 FEET. .WEDNESDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES CALM TO 2 FEET. .WEDNESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO 5 FEET. .THURSDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET. .FRIDAY...EAST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS. WAVES BUILDING TO 3 TO 5 FEET. .SATURDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 3 TO 5 FEET. $$ LSZ263-072030- LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE ROYALE NATIONAL PARK- 942 AM EDT TUE OCT 7 2008 .REST OF TODAY...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS BY MID AFTERNOON. ISOLATED SHOWERS BY LATE MORNING... THEN SCATTERED SHOWERS BY EARLY AFTERNOON. WAVES 4 TO 6 FEET. .TONIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST LATE. SHOWERS LIKELY THROUGH MIDNIGHT...THEN JUST A CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET. .WEDNESDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET. .WEDNESDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST. WAVES BUILDING TO 3 TO 5 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS. WAVES BUILDING TO 4 TO 7 FEET. .THURSDAY NIGHT...WEST WINDS TO 30 KNOTS BECOMING SOUTHWEST 15 TO 25 KNOTS LATE. WAVES 4 TO 7 FEET. .FRIDAY...EAST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 3 TO 5 FEET. .SATURDAY...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 3 TO 5 FEET. $$ LSZ264-072030- LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 942 AM EDT TUE OCT 7 2008 .REST OF TODAY...SOUTHEAST WINDS TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS BY EARLY AFTERNOON AND VEERING SOUTH LATE. ISOLATED SHOWERS BY MID AFTERNOON. WAVES 7 TO 10 FEET SUBSIDING TO 6 TO 9 FEET. .TONIGHT...SOUTH WINDS TO 30 KNOTS DIMINISHING TO 10 TO 20 KNOTS. SHOWERS LIKELY THROUGH MIDNIGHT...THEN JUST A CHANCE OF SHOWERS LATE. WAVES SUBSIDING TO 4 TO 7 FEET. .WEDNESDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST BY EARLY AFTERNOON...THEN INCREASING TO 15 TO 25 KNOTS LATE. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY AFTERNOON. WAVES 3 TO 5 FEET. .WEDNESDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST. WAVES BUILDING TO 4 TO 6 FEET. .THURSDAY...WEST 15 TO 25 KNOTS WITH A FEW GALE FORCE GUSTS TO 35 KNOTS. WAVES BUILDING TO 5 TO 8 FEET. .THURSDAY NIGHT...WEST 15 TO 25 KNOTS. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE EVENING. WAVES 6 TO 9 FEET SUBSIDING TO 4 TO 6 FEET. .FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS LATE. WAVES SUBSIDING TO 3 TO 5 FEET. .SATURDAY...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES BUILDING TO 4 TO 6 FEET. $$ LSZ265-072030- LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE- 942 AM EDT TUE OCT 7 2008 .REST OF TODAY...SOUTH WINDS TO 30 KNOTS. ISOLATED SHOWERS LATE. WAVES 5 TO 8 FEET. .TONIGHT...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS. A CHANCE OF SHOWERS THROUGH MIDNIGHT... THEN SHOWERS LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO 3 TO 5 FEET. .WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET. .WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS. WAVES BUILDING TO 4 TO 7 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS. WAVES 4 TO 7 FEET. .THURSDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET. .FRIDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO 5 FEET. .SATURDAY...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES 3 TO 5 FEET. $$ LSZ266-267-072030- 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- LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 942 AM EDT TUE OCT 7 2008 .REST OF TODAY...SOUTHEAST WINDS TO 30 KNOTS VEERING SOUTH LATE. WAVES 7 TO 10 FEET. .TONIGHT...SOUTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS. A CHANCE OF SHOWERS THROUGH MIDNIGHT...THEN SHOWERS LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO 4 TO 7 FEET. .WEDNESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO 15 KNOTS BY LATE MORNING...THEN VEERING WEST BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET. .WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS. WAVES BUILDING TO 4 TO 6 FEET. .THURSDAY...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 5 TO 8 FEET. .THURSDAY NIGHT...WEST WINDS TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS. WAVES 6 TO 9 FEET SUBSIDING TO 5 TO 8 FEET. .FRIDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 3 TO 5 FEET. .SATURDAY...SOUTHEAST WINDS 15 TO 25 KNOTS BACKING EAST. A CHANCE OF SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES BUILDING TO 4 TO 6 FEET. $$ LSZ261-072030- MAFOR 0715/ SUPERIOR WEST 12320 11326 11426 11526 11620 11610 11710. ISOLATED SHOWERS THROUGH EARLY AFTERNOON. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 4 FEET TONIGHT AND WEDNESDAY MORNING. 220305. SUPERIOR NORTH CENTRAL 13340 12446 11430 12420. ISOLATED SHOWERS THIS AFTERNOON. SHOWERS LIKELY IN THE EVENING THEN CHANCE OF SHOWERS OVERNIGHT AND WEDNESDAY MORNING. WAVES 6 TO 9 FEET SUBSIDING TO 3 TO 6 FEET WEDNESDAY MORNING. 220609. SUPERIOR SOUTH CENTRAL 13440 12430 12436 11410. CHANCE OF SHOWERS IN THE EVENING THEN SHOWERS LIKELY OVERNIGHT AND WEDNESDAY MORNING. WAVES 4 TO 7 FEET SUBSIDING TO 1 TO 4 FEET TONIGHT AND WEDNESDAY MORNING. 220507. SUPERIOR EAST 13340 11330 11430 11436 11336 11330. SLIGHT CHANCE OF SHOWERS IN THE EVENING THEN SHOWERS LIKELY OVERNIGHT AND WEDNESDAY MORNING. WAVES 5 TO 8 FEET SUBSIDING TO 3 TO 6 FEET TONIGHT AND WEDNESDAY MORNING. 220508. $$ PETRO
