Three Rivers Mayor Tom Lowry said he plans to seek a second two-year term to the city’s highest elected post. Following Tuesday’s city commission meeting, Lowry said he took out a petition earlier in the day to begin the process of appearing on the November ballot. He will need to secure a minimum number of signatures from registered voters before turning in his petition ahead of the May 14 deadline. Lowry, 56, has seven months remaining on the two-year term he captured after running unopposed in November 2011. He originally served as mayor from 1995 to 2007.