FQCN10 CWTO 251415 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. EDT FRIDAY 25 APRIL 2025 FOR TODAY TONIGHT AND SATURDAY. THE NEXT SCHEDULED SYNOPSIS WILL BE ISSUED AT 6:30 P.M. EDT. SYSTEMS POSITION. AT 10:30 A.M. EDT TODAY RIDGE LOCATED ON A LINE NORTHEAST-SOUTHWEST OVER NORTHWESTERN ONTARIO. BY 10:30 A.M. EDT SATURDAY RIDGE LOCATED ON A LINE NORTHEAST-SOUTHWEST OVER NORTHERN ONTARIO. AT 10:30 A.M. EDT TODAY TROUGH LOCATED ON A LINE NORTHEAST-SOUTHWEST OVER SOUTHERN ONTARIO. BY 10:30 A.M. EDT SATURDAY LOW 1005 MB LOCATED OVER EASTERN ONTARIO. END