OOPS, I just realized St. Paddy's Day is on the 17th not 15th
The "15th" clue made me think you might be in Dublin TX but that's south of DFW, so then I thought maybe Arlington TX at
North Texas Deaf Senior Citizens’ St. Patrick’s Day Party | Deaf Network of Texas ...but I'm not going for the deaf connection yet...so are you in Shamrock TX at the Shamrock St. Patrick's Day Festival?
Shamrock Texas St. Patrick's Day Festival