Forecasters have issued a fourth weather warning to come into force later.
Ronaldsway Met Office says a number of areas are set to flood at high tide tonight, with a storm surge in the Irish Sea.
The amber warning runs from 9.30pm tonight until 12.30am, with high tide at 11pm.
In Ramsey, West Quay, East Quay, Parliament Street, Dale Street, Shipyard Road and the banks of River Sulby to Gardener's Lane may all see flooding.
Also expected to see inner harbour flooding is the Tongue in Douglas.
Flood defences in Castletown Harbour will be deployed, at a yellow warning level.
Punters hold farewell party as pub closes
Weather decimates ferry timetable
Weather warnings for wind, rain and waves this weekend
Police: "Thoughts are with murdered boy's family" after conviction
Amber overtopping warning issued after earlier gales alert
Ghost hunters go gaga for the Gluey
Gales cancel weekend Snaefell and Douglas horse trams
Teen guilty of Ramsey stabbing murder