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SYNOPSIS UNDER THE INFLUENCE OF A 30.5 INCH CENTER OF HIGH PRESSURE LINGERING OVER THE CANADIAN MARITIMES...THE COLD FRONT ASSOCIATED WITH A 29.1 INCH HUDSON BAY LOW WILL REMAIN STATIONARY JUST TO THE WEST OF LAKE SUPERIOR THROUGH MONDAY NIGHT...AND THEN DISSIPATE ON TUESDAY. UNTIL THAT TIME...THESE TWO SYSTEMS WILL CONTINUE TO PUMP SOUTHERLY FLOW INTO THE WESTERN LAKES. TONIGHT THIS FLOW WILL REMAIN STRONG...BUT AS THE HIGH FILLS TO 30.6 INCHES AND THE LOW WEAKENS SLIGHTLY TO 29.4 INCHES...THE GRADIENT WILL WEAKEN ON MONDAY. BY TUESDAY A 29.8 INCH LOW PRESSURE SYSTEM WILL BEGIN ENCROACHING ON THE WESTERN LAKES...SHOOTING ACROSS SOUTHERN WISCONSIN WHILE DEEPENING TO 29.6 INCHES AND CROSSING THE MACKINAC STRAITS WEDNESDAY NIGHT. THE LOW WILL THEN FILL TO 29.9 INCHES AS IT MEANDERS ACROSS THE EASTERN LAKES THROUGH FRIDAY. LSZ267-231045- LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 933 PM EST SUN NOV 22 2009 REST OF TONIGHT SOUTH WINDS 15 TO 25 KNOTS. PATCHY FOG. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 5 FEET. MONDAY SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE MORNING. WAVES SUBSIDING TO 2 TO 4 FEET. MONDAY NIGHT SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES 2 TO 4 FEET. TUESDAY SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET. TUESDAY NIGHT SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES BUILDING TO 1 TO 3 FEET. WEDNESDAY EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST IN THE AFTERNOON. RAIN LIKELY. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET. WEDNESDAY NIGHT NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO 30 KNOTS AFTER MIDNIGHT. RAIN LIKELY...BECOMING SNOW AFTER MIDNIGHT. WAVES BUILDING TO 5 TO 8 FEET. THURSDAY NORTH WINDS 20 TO 30 KNOTS. RAIN AND SNOW LIKELY... THEN A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 8 TO 11 FEET. FRIDAY NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET. $$
