NATIONAL WEATHER SERVICE MARQUETTE MI
4:00 PM Saturday July 4
W2SYNOPSIS, A WEAK HIGH PRESSURE RIDGE OF 300 INCHES OVER THE UPPER GREAT LAKES WILL SHIFT TO THE EAST COAST BY LATE SUNDAY EVENING.W2 A LOW PRESSURE TROUGH AVERAGING 297 INCHES EXTENDING FROM HUDSON BAY TO THE WESTERN PLAINS SUNDAY AFTERNOON WILL MOVE EAST, CROSSING THE UPPER GREAT LAKES MONDAY AND MONDAY NIGHT.W2 AS THE TROUGH MOVES TO THE LOWER GREAT LAKES BY LATE TUESDAY, HIGH PRESSURE OF 301 INCHES WILL BUILD ACROSS THE UPPER GREAT LAKES.W2 THE HIGH WILL THEN LINGER OVER THE UPPER GREAT LAKES THROUGH WEDNESDAY.W2 AS THE HIGH DRIFTS ACROSS THE LOWER GREAT LAKES ON THURSDAY, A 297 INCH LOW PRESSURE TROUGH WILL STRETCHING FROM NORTHERN MANITOBA TO THE CENTRAL ROCKIES WILL MOVE TO NORTHERN ONTARIO AND THE UPPER MISSISSIPPI VALLEY.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, east winds 5 to 15 knots.W2 patchy fog.W2 waves calm to 2 feet.W2 tonight, northeast winds 5 to 15 knots.W2 patchy fog.W2 waves calm to 2 feet.W2 sunday, east winds 5 to 15 knots veering south by mid afternoon.W2 a slight chance of showers and thunderstorms by mid afternoon.W2 waves calm to 2 feet.W2 sunday night, south winds 10 to 20 knots becoming southwest 5 to 15 knots after midnight.W2 areas of fog.W2 a chance of showers and thunderstorms through midnight.W2 showers and thunderstorms likely after midnight.W2 waves calm to 2 feet.W2 monday, south winds 5 to 15 knots becoming north 10 to 20 knots by mid afternoon.W2 areas of fog.W2 showers through early afternoon.W2 thunderstorms.W2 showers by mid afternoon.W2 waves calm to 2 feet.W2 monday night, northwest winds 10 to 20 knots.W2 patchy fog through midnight.W2 waves building to 1 to 3 feet, then subsiding to calm to 2 feet.W2 tuesday, northwest winds 10 to 20 knots becoming southwest 5 to 15 knots by mid afternoon.W2 waves calm to 2 feet.W2 tuesday night, southwest winds 5 to 15 knots.W2 waves calm to 2 feet.W2 wednesday, southwest winds 5 to 15 knots.W2 waves calm to 2 feet.W2 thursday, southwest winds 5 to 15 knots.W2 waves calm to 2 feet.W2