Sailings tonight and early tomorrow morning have been re-scheduled.
Tonight's Ben-my-Chree crossing to Heysham previously planned for 7.45pm will now set off at 7pm - and tomorrow's 2.15am return to the Island is now due to leave at 1.15am.
Meanwhile, sailings tomorrow could be cancelled ahead of adverse weather conditions.
Tomorrow's 8am Ben-my-Chree voyage to Birkenhead and it's return scheduled for 2pm are currently in doubt.
A final decision will be made by 6.30am tomorrow morning.
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Repairs on Peel Power Station to get underway
Manx Care doctor survey to be discussed by Tynwald
Weather warning for snow tonight
MHK queries safety at primary school in Ballabeg
Gales put two ferry sailings at risk tonight
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Warning issued over icy roads