A rapidly growing wildfire near Port Alberni has cut off the main road access to Bamfield and prompted a state of local emergency and the evacuation of a campground and an area northwest of Cowichan Lake. The Mount Underwood wildfire was estimated at 1,391 hectares, or almost 14 square kilometres, as of Tuesday afternoon, making it the largest blaze on Vancouver Island. An air quality advisory for inland Vancouver Island was issued on Tuesday afternoon, with smoke from the fire impacting air quality near Port Alberni and in areas to the southeast, such as Lake Cowichan. Areas along the west coast of Vancouver Island from Tofino to Sooke may also experience periods of smoke, but to a lesser degree, the notice said. BC Wildfire Service fire information officer Christi Howes said the fire, which was discovered on Monday, has forced the closing of the road between Port Alberni and Bamfield.