NATIONAL WEATHER SERVICE MARQUETTE MI
3:49 PM Saturday September 20
W2SYNOPSIS, A 295 INCH LOW PRESSURE OVER ONTARIO WILL MOVE INTO SOUTHERN QUEBEC THIS EVENING.W2 ANOTHER LOW PRESSURE TROUGH AVERAGING 297 INCHES WILL SWING THROUGH THE UPPER GREAT LAKES TONIGHT, AND REACH THE LOWER GREAT LAKES BY SUNDAY EVENING.W2 A 303 INCH HIGH PRESSURE CENTER OVER THE NORTHERN PLAINS ON SUNDAY WILL THEN MOVE SOUTHEAST INTO THE OHIO RIVER VALLEY ON MONDAY.W2 LOOK FOR ANOTHER LOW PRESSURE TROUGH AVERAGING 300 INCHES TO SLIDE ACROSS LAKE SUPERIOR ON MONDAY NIGHT IN ADVANCE OF A 303 INCH HIGH PRESSURE BUILDING INTO NORTHWEST ONTARIO.W2 THIS HIGH PRESSURE SYSTEM WILL SHIFT OVER NEW ENGLAND ON WEDNESDAY WITH RIDGING REMAINING ACROSS THE GREAT LAKES.W2 LSZ162-210300.W2 LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5 NORTHM.W2 late this afternoon, west winds 5 to 15 knots.W2 a slight chance of showers and thunderstorms.W2 waves calm to 2 feet.W2 tonight, north winds 5 to 15 knots veering northeast after midnight.W2 a slight chance of showers and thunderstorms.W2 waves calm to 2 feet.W2 sunday, northeast winds 5 to 15 knots veering south by mid afternoon.W2 waves building to 1 to 3 feet, then subsiding to calm to 2 feet.W2 sunday night, southwest winds 5 to 15 knots veering west after midnight.W2 waves calm to 2 feet.W2 monday, west winds 5 to 15 knots becoming southwest 10 to 20 knots by mid afternoon.W2 waves building to 1 to 3 feet.W2 monday night, west winds 5 to 15 knots.W2 waves subsiding to calm to 2 feet.W2 tuesday, southwest winds 5 to 15 knots backing south by mid afternoon.W2 waves calm to 2 feet.W2 tuesday night, southeast winds 5 to 15 knots veering south after midnight.W2 waves calm to 2 feet.W2 wednesday, south winds 5 to 15 knots.W2 waves calm to 2 feet.W2 thursday, south winds 5 to 15 knots backing southeast.W2 waves calm to 2 feet.W2