The Tasmanian Fire Service expects it could be battling bushfires across the state for months to come.

There are still 27 active fires burning across the state, with some threatening containment lines.

Six advice level alerts are in place, including for the Pipeline-Mawbanna blaze in the north-west and the Maxwell River South fire in the south-west.

About 50 millimetres of rain would be needed to put the fires out but acting deputy chief officer Jeremy Smith said the rain forecast for the next two to three days would not be enough.

"I don't believe it's sufficient rain to extinguish these fires and until we get substantial rain and a cooling cycle, these fires will be with us for a number of weeks and potentially months," he said.

Extra firefighting resources have begun arriving in the state, as firefighters battle windy conditions that are expected to continue through the week.

Key points: Six advice level alerts in place at Balfour, Mawbanna, Meunna and surrounds, Southwest, Lorinna and Lake Mackenzie area

Six advice level alerts in place at Balfour, Mawbanna, Meunna and surrounds, Southwest, Lorinna and Lake Mackenzie area More firefighting gear arriving by plane in Tasmania as high winds fan remote fires in north-west

More firefighting gear arriving by plane in Tasmania as high winds fan remote fires in north-west Base camp for firefighters set up in Stanley, additional 245 interstate firefighters expected

Tasmania's fire chief Gavin Freeman said an area to the north-east of the Mawbanna fire was causing concern as there was the potential for the fire to get through.

"We're expecting the wind to increase up to 50kph, which is significant with this amount of fire we have in this environment," he said.

"The temperature itself is not going to be too bad but when we have got fire already alight it's really the wind and the dry air that's forecast to accompany that wind that will cause us problems."

The owner of the Tarkine Wilderness Lodge, Maree Jenkins, is bracing for the unfavourable weather conditions, and said she would defend the lodge.

"[I feel] anxious, a bit sick in the stomach," she said.

"We're very well prepared here, we've put plough lines right around the edges of our paddocks, we've got all our tanks and pumps full.

"We've got mobile tankers here and big fire lines all set up around the lodge here."

Tarkine Wilderness Lodge manager Maree Jenkins is preparing to stay and fight the blaze if it reaches the property. ( ABC News: Lauren Waldhuter )

Ms Jenkins said she had been forced to turn away guests.

"It's not safe to be in the forest, and it's certainly not pleasant here at the moment, so I've been cancelling guests for the last three weeks on and off," she said.

She said the fires had had a big effect on her business.

"This is our busiest time of course, over summer, so not good for the business at all," Ms Jenkins said.

About 100 people attended a community meeting about the fire burning near Mawbanna.

Fiona White from Milabena said she had packed important belongings and was ready to leave.

"For the last month it's been smoky, off and on — more on than off — so it's been very disconcerting … but now [I'm] really quite concerned," she said.

Temporary accommodation to house firefighters

A base camp to cater for an influx of firefighters is being set up near Stanley in Tasmania's far north-west, Mr Freeman said.

"We're also bringing in another 50 fire tankers from interstate and they'll be supported by 10 command vehicles and they will be fully crewed, so that will be an additional 245 firefighters from South Australia, Victoria and NSW coming in over the next two to three days," he said.

C-17 plane arrives with firefighting gear for the north-west bushfires. ( ABC News: Ellen Coulter )

Defence Force C-17 cargo planes have arrived in Hobart with infrastructure for the camp.

"Over the next day or two because accommodation is becoming virtually impossible to get around Tasmania, there are still a lot of holidaymakers in the state, which is fantastic, but also a lot of interstate firefighters, so we are struggling to find accommodation for them," he said.

"So we've had to request a base camp that will be established in the north of the state."

Jeremy Smith from the TFS said the support would be a relief for local crews.

"The 250 to 300 beds will allow firefighters to be closer to the fire line, less travel, less fatigue," he said.

"It'll make accommodating our firefighters and incident management personnel a lot easier."

The TFS said there has been no major damage to sensitive forests in the World Heritage Area in the past few days.

Since the fires began last month, many caused by lightning strikes, more than 100,000 hectares have been burnt around the state.

That includes 19,000 hectares in the World Heritage Area.

Mr Freeman said a lot of resources have been put into the Maxwell River South fire in the state's south-west wilderness.

"To ensure that we minimise any impact, at the moment it's burning in button-grass plain which is not ideal of course, but it's certainly not burning in any threatened species in terms of large trees so we're doing everything we can to keep it out of those areas," he said.