A321
Flight Crew Air Transport Pilot (ATP)
Inflight Event / Encounter Wake Vortex Encounter
General None Reported / Taken
Environment - Non Weather Related
Overhead BTY VOR en route to LOMIA Intersection we encountered wake turbulence at FL340 causing the aircraft to roll 10 to 15 degrees of bank to the right. Encounter was momentary with no loss of control or clearance deviation. ATC advised the only aircraft to transit the area recently was a company Airbus that was 15 miles ahead of us also at FL340. We all presume this was the aircraft's wake we encountered. The ride conditions were smooth; both prior to and after the encounter. I don't know what atmospheric condition held the vortices level at FL340 for the two to two and a half minutes between us and the preceding aircraft. Although the wind was on our tail so there would have been no lateral displacement of the vortices.
A321 pilot reported wake vortex encounter at FL340 from preceding Airbus that was two to two and one half minutes ahead.