Tasmanians have been urged to remain alert to fire risks as the state faces 40C temperatures in southern and eastern areas.
Hobart is forecast to reach 40C and Launceston is expecting a maximum temperature of 34C on Monday, with thunderstorms and wind gusts of 80 to 90km/h also forecast.
The forecast combination of heat, thunderstorms and wind gusts have triggered extreme and severe fire dangers warnings across the state.
"A total fire ban has been declared across the state and is set to continue until Tuesday morning," Emergency Management Minister Mark Shelton said.
"People are being urged to remain vigilant. It is vital that people know what to do if a fire threatens their home or property."
Tasmanians were also encouraged to have a plan to keep in touch with older or sick relatives, friends and neighbours.
Tasmania Fire Services recommended people living in bushland areas to relocate to urban areas for Monday, and campers to reconsider their plans.
"As far as the fire danger goes, tomorrow has the potential to be a very bad day across large parts of the state," TFS chief officer Chris Arnol said.
"Although Tasmania's fire agencies are well prepared, people can't expect to see a fire truck in every driveway and an aircraft above every house."