NATIONAL WEATHER SERVICE MARQUETTE MI
3:55 AM Sunday April 19
W2SYNOPSIS, 297 INCH LOW PRESSURE OVER SOUTHWEST MINNESOTA THIS MORNING WILL MERGE WITH ANOTHER 295 INCH LOW PRESSURE SYSTEM LIFTING NORTHEAST INTO THE LOWER GREAT LAKES, RESULTING IN A DEEPER 292 INCH LOW PRESSURE NEAR THE UPPER GREAT LAKES ON MONDAY EVENING.W2 ALTHOUGH THIS LOW WILL SHIFT NORTHEAST TO NEAR JAMES BAY ON TUESDAY, A TROUGH OF LOW PRESSURE AVERAGING 295 INCHES ON ITS SOUTHWEST FLANK WILL EXTEND BACK INTO THE UPPER GREAT LAKES.W2 THESE FEATURES WILL REMAIN NEARLY STATIONARY BUT WEAKEN SLOWLY THROUGH WEDNESDAY, TO THE EAST OF A 301 INCH HIGH PRESSURE RIDGE BUILDING OVER THE NORTHERN PLAINS.W2 THE LOW WILL FINALLY SHIFT EAST ON THURSDAY, ALLOWING A 300 RIDGE TO MOVE INTO WESTERN LAKE SUPERIOR.W2 LSZ162-191600.W2 LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5 NORTHM.W2 early this morning, east winds 10 to 20 knots.W2 scattered rain showers.W2 waves 3 to 5 feet subsiding to 2 to 4 feet.W2 today, east winds 10 to 20 knots diminishing to 5 to 15 knots by mid afternoon.W2 numerous rain showers.W2 waves subsiding to 1 to 3 feet.W2 tonight, northwest winds 5 to 15 knots becoming west 10 to 20 knots after midnight.W2 rain showers likely through midnight, then a chance of rain showers after midnight.W2 waves subsiding to calm to 2 feet.W2 monday, west winds 10 to 20 knots.W2 a slight chance of snow showers through early afternoon.W2 a slight chance of rain showers.W2 waves building to 1 to 3 feet.W2 monday night, west winds 10 to 20 knots becoming northwest 15 to 25 knots after midnight.W2 a slight chance of rain showers through midnight.W2 a chance of snow showers.W2 waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.W2 tuesday, northwest winds 20 to 30 knots diminishing to 15 to 25 knots by mid afternoon.W2 a chance of snow showers.W2 waves subsiding to 1 to 3 feet.W2 tuesday night, northwest winds 20 to 30 knots diminishing to 15 to 25 knots after midnight.W2 waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.W2 wednesday, northwest winds 15 to 25 knots.W2 waves subsiding to calm to 2 feet.W2 thursday, northwest winds 10 to 20 knots.W2 waves calm to 2 feet.W2