Tasmanians are in for a wet remainder of the weekend as a cold front crosses the state from west to east.
The Bureau of Meteorology has issued a flood watch for all central-northern, north-eastern and central river basins as well as the River Derwent, with strong flows likely for small creeks in low-lying areas across the state.
Central and central-northern catchments are expected to receive between 20 and 30 millimetres of rain on Sunday, while western catchments and parts of the River Derwent could receive up to 40 millimetres.
River levels are expected to rise as early as Sunday morning, with the possibility of flooding developing in some catchments from Sunday afternoon.
The bureau will issue specific flood warnings as they arise.