BRUNSWICK — Organizers of the Great State of Maine Air Show & Business Aviation Expo are monitoring Hurricane Irene’s progress.

It’s too early to know how the weather might affect Sunday’s performance. But organizers are offering Sunday ticket holders an option to swap them for Saturday tickets.

Holders of reserved or chalet tickets for Sunday can exchange them for Saturday. Call 888-695-0888 to make the exchange. Check  for updates.

General admission tickets are good for Saturday or Sunday.