There are two types of flooding that are most prevelant in Tasmania:
Flash Flooding - usually occurs in headwaters and results in rapid rises of water over a short period of time.
Riverine Flooding - occurs when rivers burst their banks, inundating the surrounding low-lying land.
Other causes include dam failure, pipeline failure, storm surge and tsunami.
In 2011 there was a series of floods that impacted mostly in the north east of Tasmania during the months of January, March and August. In isolation, each of these floods had only relatively minor impacts, however the cumulative effect of these floods increased the overall impact on local communities.
See below for a list of Flood resources: