NATIONAL WEATHER SERVICE MARQUETTE MI
4:09 AM Wednesday August 5
W2SYNOPSIS, A 301 INCH HIGH PRESSURE RIDGE OVER MANITOBA AND ONTARIO WILL BUILD OVER THE UPPER GREAT LAKES THROUGH THURSDAY.W2 LOW PRESSURE OF 297 INCHES DEVELOPING FROM THE HIGH PLAINS TO SOUTHERN MANITOBA BY THURSDAY MORNING WILL DISSIPATE AS IT MOVES OVER THE UPPER GREAT LAKES.W2 ANOTHER LOW PRESSURE SYSTEM OF 296 INCHES WILL THEN DEVELOP OVER MANITOBA ON FRIDAY NIGHT EXTENDING A TROUGH SOUTHWARD ACROSS THE NORTHERN PLAINS.W2 THIS TROUGH WILL CROSS THE UPPER GREAT LAKES BY SUNDAY WHILE HIGH PRESSURE OF 300 INCHES BUILDS OVER CENTRAL CANADA.W2 LSZ162-051615.W2 LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5 NORTHM.W2 early this morning, variable winds less than 10 knots.W2 waves calm to 2 feet.W2 today, east winds 5 to 15 knots.W2 waves calm to 2 feet.W2 tonight, east winds 5 to 15 knots.W2 waves calm to 2 feet.W2 thursday, east winds 5 to 15 knots.W2 a slight chance of showers and thunderstorms by mid afternoon.W2 waves calm to 2 feet.W2 thursday night, east winds 5 to 15 knots.W2 a chance of showers and a slight chance of thunderstorms.W2 waves calm to 2 feet.W2 friday, southeast winds 10 to 20 knots diminishing to 5 to 15 knots by mid afternoon.W2 showers likely through early afternoon.W2 a chance of showers by mid afternoon.W2 waves building to 1 to 3 feet.W2 friday night, southeast winds 5 to 15 knots becoming west less than 10 knots after midnight.W2 a chance of showers.W2 waves subsiding to calm to 2 feet.W2 saturday, southwest winds 5 to 15 knots backing east.W2 waves calm to 2 feet.W2 sunday, south winds 5 to 15 knots veering northwest.W2 waves calm to 2 feet.W2