I think what they should have done, instead of the storm, is have it be an anniversary for The Woolpack. Maybe it could celebrate 100 or 150 years or something. That would have given them a reason to bring back some characters from the past with ties to The Woolpack for the festivities. Dolly, who was introduced to the show as a barmaid, Marian Wilks, whose father used to co-own it and Kathy, who also used to work there, are obvious choices. They could also remember that longtime customer Seth actually had two sons (Jimmy and Fred) and bring one or both of them back, with a family. Other possible visits could be Lynn and Louise. Maybe Sandie as well.
It would also have given them the opportunity to show some clips from the shows past and remember people and events from bygone years. Just like an anniversary celebration should do.