NATIONAL WEATHER SERVICE MARQUETTE MI
3:50 AM Wednesday MAY 4
W2SYNOPSIS, A 296 INCH LOW PRESSURE TROUGH EXTENDING FROM NORTHERN ILLINOIS, ACROSS NORTHERN LOWER MICHIGAN, TO SOUTHERN JAMES BAY WILL MOVE SOUTHEASTWARD TODAY AS A 301 INCH HIGH PRESSURE BUILDS ACROSS THE UPPER MISSISSIPPI VALLEY.W2 THE HIGH WILL THEN DRIFT ACROSS LAKE SUPERIOR TONIGHT INTO THURSDAY.W2 LOW PRESSURE OF 296 INCHES OVER SOUTH CENTRAL CANADA THURSDAY NIGHT WILL LIFT ACROSS ONTARIO TO JUST SOUTH OF JAMES BAY FRIDAY NIGHT.W2 THIS LOW WILL PUSH A 297 INCH TROUGH ACROSS LAKE SUPERIOR FRIDAY NIGHT AS 301 HIGH PRESSURE BUILDS INTO THE NORTHERN PLAINS ON SATURDAY.W2 A SECONDARY LOW PRESSURE TROUGH OF 298 INCHES WILL CROSS THE UPPER GREAT LAKES LATE SATURDAY NIGHT INTO SUNDAY MORNING BEFORE THE RIDGE BUILDS ACROSS LAKE SUPERIOR SUNDAY NIGHT.W2 LSZ162-041600.W2 LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5 NORTHM.W2 early this morning, north winds 10 to 20 knots.W2 waves calm to 2 feet.W2 today, north winds 5 to 15 knots veering south less than 10 knots by mid afternoon.W2 waves calm to 2 feet.W2 tonight, south winds 5 to 15 knots veering southwest after midnight.W2 waves calm to 2 feet.W2 thursday, southwest winds 5 to 15 knots backing south by mid afternoon.W2 a slight chance of rain showers through early afternoon.W2 waves calm to 2 feet.W2 thursday night, south winds 5 to 15 knots veering southwest after midnight.W2 a slight chance of rain showers.W2 waves calm to 2 feet.W2 friday, southwest winds 5 to 15 knots.W2 waves calm to 2 feet.W2 friday night, north winds 10 to 20 knots.W2 a chance of rain showers.W2 waves calm to 2 feet.W2 saturday, southwest winds 5 to 15 knots veering west.W2 waves calm to 2 feet.W2 sunday, south winds 5 to 15 knots.W2 waves calm to 2 feet.W2