FQCN10 CWTO 221515 TECHNICAL MARINE SYNOPSIS FOR THE CANADIAN PORTION OF THE GREAT LAKES AND THE ONTARIO PORTION OF THE ST. LAWRENCE RIVER ISSUED BY ENVIRONMENT CANADA AT 10:30 A.M. EST SATURDAY 22 FEBRUARY 2025 FOR TODAY TONIGHT AND SUNDAY. THE NEXT SCHEDULED SYNOPSIS WILL BE ISSUED AT 6:30 P.M. EST. SYSTEMS POSITION. AT 10:30 A.M. EST TODAY QUASI-STATIONARY HIGH 1037 MB LOCATED OVER WEST VIRGINIA. AT 10:30 A.M. EST TODAY TROUGH LOCATED ON A LINE NORTHEAST-SOUTHWEST OVER LAKE SUPERIOR. BY 10:30 A.M. EST SUNDAY TROUGH LOCATED ON A LINE NORTHEAST-SOUTHWEST OVER THE GULF OF ST. LAWRENCE. END