Flood warnings have been issued for the West Coast as "abnormally high tides" are expected to inundate low-lying areas over the coming days.
Bureau of Meteorology forecaster Alex Melitsis said high tides across weekend evenings could bring flooding to the West Coast at Strahan, and coastlines around southern Tasmania.
"We have seen some pretty high tides over the last few days but really it will be [Friday, Saturday and Sunday night] that we see the highest tides," Mr Melitsis said.
"The tides are expected to be high enough to lead to some localised coastal inundation across southern and lower eastern coasts of Tasmania."
Mr Melitsis said the tides will be high across the weekend but will peak on Saturday night.
"At this stage it looks like the tides could be the highest tides we have seen in quite a few years, potentially since May 1994.
"That just gives you a bit of perspective, that although we do some really high tides from time to time, the ones we are expecting tomorrow night are particularly high and may lead to more impacts than what we would normally see.
He said the impacts the BOM was expecting include flooding leading to roads becoming impassable, and for "beaches to mostly disappear".
"If you do have any boats or any infrastructure nearby the coast there you best either secure it or pull it far away from the coastline.
"I certainly wouldn't parking my car near the beach in the coming few days or evenings."
He said the high tides were a combination of abnormally large movements in astronomical tidal patterns, as well as very low pressure air systems and sea level anomalies which are unusually high.
Mr Melitsis said the unusual tidal activity could be combined with cold weather and frequent precipitation, bringing rain to the West Coast and snow down to about 400m over the weekend and into next week.
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