The Seaway Valley's news and Information Station now goes where you go! Stay in touch with Massena and the surrounding areas with this app that let's you stream programming no matter where you are! WMSA (1340 AM) is a radio station broadcasting Local and National News, Community Information and Oldies format. Licensed to Massena, New York, USA, the station is currently owned by Stephens Media Group. WMSA has been serving Massena and surrounding community for over 65 years. WMSA went on the air at 2pm on October 12th, 1945