NATIONAL WEATHER SERVICE MARQUETTE MI
3:58 PM Monday MAY 4
W2SYNOPSIS, 302 INCH HIGH PRESSURE CENTERED OVER NORTHWESTERN MINNESOTA WILL BUILD OVER THE UPPER LAKES TONIGHT.W2 THIS HIGH WILL DRIFT INTO SOUTHEAST ONTARIO LATER TUESDAY INTO WEDNESDAY AS ANOTHER 304 INCH AREA OF HIGH PRESSURE MOVES INTO NORTHWEST ONTARIO AND A 296 INCH LOW PRESSURE TROUGH FORMS OVER THE PLAINS.W2 A 295 INCH LOW PRESSURE CENTER EMERGING FROM THIS TROUGH WILL MOVE THROUGH THE NORTHERN PLAINS ON THURSDAY WHILE THE ONTARIO HIGH DRIFTS ACROSS HUDSON BAY INTO QUEBEC.W2 THE LOW WILL DRAG A TROUGH AVERAGING 298 INCHES ACROSS THE UPPER GREAT LAKES REGION THURSDAY NIGHT THROUGH FRIDAY.W2 A HIGH PRESSURE RIDGE OF 302 INCHES WILL SETTLE IN OVER LAKE SUPERIOR ON SATURDAY.W2 LSZ162-050400.W2 LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5 NORTHM.W2 late this afternoon, south winds 5 to 15 knots.W2 waves calm to 2 feet.W2 tonight, south winds 5 to 15 knots becoming west less than 10 knots after midnight.W2 waves calm to 2 feet.W2 tuesday, east winds less than 10 knots increasing to 5 to 15 knots by mid afternoon.W2 waves calm to 2 feet.W2 tuesday night, east winds 5 to 15 knots.W2 a slight chance of rain showers after midnight.W2 waves calm to 2 feet.W2 wednesday, east winds 5 to 15 knots.W2 a slight chance of showers and thunderstorms.W2 waves calm to 2 feet.W2 wednesday night, east winds 5 to 15 knots veering southeast after midnight.W2 waves calm to 2 feet.W2 thursday, southeast winds 5 to 15 knots veering south by mid afternoon.W2 a chance of rain showers.W2 waves calm to 2 feet.W2 thursday night, south winds 10 to 20 knots veering southwest after midnight.W2 a chance of showers and thunderstorms.W2 waves calm to 2 feet.W2 friday, west winds 5 to 15 knots veering north.W2 waves calm to 2 feet.W2 saturday, northeast winds 10 to 20 knots.W2 waves calm to 2 feet.W2