NATIONAL WEATHER SERVICE MARQUETTE MI
10:01 PM Wednesday September 17
W2SYNOPSIS, A 303 INCH HIGH PRESSURE OVER NORTHERN ONTARIO WILL MOVE SOUTHEAST AND BECOME CENTERED JUST NORTHEAST OF LAKE SUPERIOR BY THURSDAY MORNING.W2 THE HIGH WILL MOVE TO NEW ENGLAND ON FRIDAY BEFORE A 295 INCH TROUGH TRACKS INTO NORTHWEST ONTARIO LATE FRIDAY.W2 ANOTHER AREA OF LOW PRESSURE AVERAGING 296 INCHES WILL DEVELOP OVER THE NORTHERN PLAINS FRIDAY NIGHT.W2 THIS LOW WILL DEEPEN TO 295 INCHES AS IT SHIFTS OVER THE UPPER GREAT LAKES REGION LATE SATURDAY INTO SATURDAY NIGHT AND THEN INTO QUEBEC ON SUNDAY.W2 AS THE LOW SHIFTS INTO NORTHEASTERN QUEBEC SUNDAY NIGHT INTO MONDAY, HIGH PRESSURE OF 302 INCHES WILL BUILD ACROSS THE NORTHERN PLAINS AND INTO THE UPPER GREAT LAKES REGION.W2 LSZ162-181015.W2 LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5 NORTHM.W2 rest of tonight, east winds 10 to 20 knots.W2 waves 3 to 5 feet subsiding to 1 to 3 feet.W2 thursday, east winds 10 to 20 knots.W2 waves subsiding to calm to 2 feet, then building to 1 to 3 feet.W2 thursday night, east winds 5 to 15 knots becoming south 10 to 20 knots after midnight.W2 a slight chance of showers after midnight.W2 waves subsiding to calm to 2 feet, then building to 2 to 4 feet.W2 friday, south winds 15 to 25 knots becoming southwest 10 to 20 knots by mid afternoon.W2 showers likely and a slight chance of thunderstorms.W2 waves building to 3 to 5 feet, then subsiding to 1 to 3 feet.W2 friday night, southwest winds 5 to 15 knots.W2 a chance of showers and thunderstorms.W2 waves subsiding to calm to 2 feet.W2 saturday, west winds 5 to 15 knots.W2 a chance of showers and thunderstorms.W2 waves calm to 2 feet.W2 saturday night, west winds 10 to 20 knots.W2 a chance of showers.W2 waves building to 1 to 3 feet.W2 sunday, west winds 10 to 20 knots veering north.W2 waves subsiding to calm to 2 feet.W2 monday, north winds 10 to 20 knots becoming west 5 to 15 knots.W2 waves calm to 2 feet.W2