Fire crews are working around the clock to tackle scores of blazes burning across Tasmania, with more interstate back up just a day away.
The state's fire service has 68 blazes on Friday afternoon, with 47 listed as "going" and 21 "patrol".
The major fires are a blaze which has burnt more than 20,000 hectares of wilderness near Gell River northwest of Hobart since it started on December 28 and another near Lake Fergus in the state's centre.
Both remain on advice alert levels along with another fire in the southwest.
A smoke alert remains in place for the Derwent Valley, Greater Hobart area, Huon Valley, Bruny Island and D'entrecasteaux Channel.
More than 160 firefighters, support staff and air crews are fighting the fires, including about 50 people from interstate.
The first batch of the extra 78 personnel from across Australia are expected to arrive on Saturday, with the rest to follow in the coming week.
"We have been lucky to have reasonably had favourable conditions that has allowed us to focus on our suppression efforts and containing and extinguishing many of these fires," the service's deputy chief officer Bruce Byatt told reporters.
People in the eastern part of the state may see and smell smoke on Saturday from the existing fires as the westerly winds move to the east with ash, he warned.
Parks and Wildlife Service director operations Mark Bryce said some of the fires in the southwest may join up, with dry lightning across the state adding to the fire headaches.
"We thought it would be a fairly normal year but that is not panning out that way. We are only into the second week in January still have another six or eight weeks to go," he said.
There is no rain expected to fall over the weekend to break up the conditions.
