NATIONAL WEATHER SERVICE MARQUETTE MI
9:53 PM Thursday October 23
W2SYNOPSIS, A 301 INCH HIGH PRESSURE RIDGE EXTENDING FROM NORTHERN QUEBEC ACROSS THE CENTRAL GREAT LAKES WILL SLOWLY DRIFT EASTWARD AND DISSIPATE THROUGH FRIDAY AS 297 INCH LOW PRESSURE CENTERED NORTHEAST OF LAKE WINNIPEG ALSO DISSIPATES.W2 ANOTHER 293 INCH LOW PRESSURE OVER NORTHERN SASKATCHEWAN ON FRIDAY WILL THEN TRACK EAST TO FAR NORTHERN ONTARIO ON SATURDAY AND DEEPEN TO 292 INCHES, DRAGGING ITS ATTENDANT COLD FRONT ACROSS THE UPPER GREAT LAKES ON FRIDAY NIGHT.W2 IN THE WAKE OF THIS FRONTAL PASSAGE, EXPECT A 301 INCH HIGH PRESSURE OVER THE NORTHERN PLAINS ON SATURDAY TO MOVE TO THE OHIO RIVER VALLEY ON SUNDAY WHILE YET ANOTHER 294 INCH LOW PRESSURE DEVELOPS OVER THE CANADIAN PRAIRIES.W2 THIS LOW WILL TRACK EASTWARD, REACHING THE UPPER GREAT LAKES ON TUESDAY.W2 LSZ162-241000.W2 LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5 NORTHM.W2 rest of tonight, south winds 5 to 15 knots veering southwest after midnight.W2 patchy fog.W2 waves calm to 2 feet.W2 friday, southwest winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon.W2 patchy fog through early afternoon.W2 waves building to 1 to 3 feet, then subsiding to calm to 2 feet.W2 friday night, southwest winds 10 to 20 knots veering west after midnight.W2 waves building to 2 to 4 feet.W2 saturday, west winds 15 to 25 knots.W2 waves 2 to 4 feet.W2 saturday night, west winds 10 to 20 knots.W2 waves subsiding to 1 to 3 feet.W2 sunday, west winds 5 to 15 knots backing southwest by mid afternoon.W2 waves subsiding to calm to 2 feet.W2 sunday night, east winds 5 to 15 knots increasing to 10 to 20 knots after midnight.W2 waves calm to 2 feet.W2 monday, east winds 10 to 20 knots backing northeast.W2 a chance of rain showers.W2 waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.W2 tuesday, north winds 10 to 20 knots becoming northwest 15 to 25 knots.W2 a chance of rain showers.W2 a chance of snow showers.W2 waves building to 3 to 5 feet.W2