Sailings today have been pushed back by the Steam Packet Company.
The Manxman's trip from Douglas to Heysham at 8.30am will now set 10.15am, with her return trip at 1.45pm now leaving at 5pm.
Her sailing at 7.45pm has been cancelled as well as her return trip at 1.45am the following morning.
Sailings on Friday, Saturday and Sunday are all facing disruption as well.