Oh, brother; I am in Italy and this one time I slacked on my ritual to look up the strikes webpage, kept by the ministry of infrastructure and transport (yes, that's very ironic), before my trip.

For all on this thread, it's kept at http://www.mit.gov.it/mit/site.php?p=scioperi and google translate will (somewhat) make sense of it in English. The current strike on 6 September is from 10-18 for the air sector (plus 9:01-17:00 for trains, and a delay of 8 hours for ferry departures); nothing else listed there will affect BA.