Well, there was ONE bolt, and it was a close one ! ... but it happened before recording. But a single lightning is enough to define a thunderstorm, so it was one, definitively. Some disappointment not to get more electrical activity from that cute little cell.
Pentax K-x, Pentax-DA 18-55 lens, August 15, 2010, seen from the Chateau Monluc's terrace in St-Puy (Gers, SW France).