Tas due to cop rough SA weather front

A severe weather warning is in place for parts of Tasmania with heavy rain and strong winds expected to lash the state as a front moves through from South Australia.

The Bureau of Meteorology warns of rainfall up to 100mm in elevated areas and winds of 90km/h for north and eastern centres starting on Thursday and stretching through to Friday.

"The trough is expected to cross King Island in the morning, the north coast around midday, then reach roughly Orford to Melaleuca around midnight," the Bureau website reported.