UPDATE: ISLAND PARK, Idaho (KIFI) — Power has been successfully restored to residents in Island Park and West Yellowstone following a large-scale outage on Wednesday afternoon. Fall River Electric confirmed that service was restored to all affected customers shortly after 4:30 p.m. ORIGINAL: ISLAND PARK, Idaho (KIFI) — Crews with Fall River Electric are responding to a large-scale power outage in Island Park and West Yellowstone. The outage star…