The Steam Packet Company says two sailings may be at risk of disruption this weekend.
The 7.15pm Douglas to Heysham sailing on the Manxman on Saturday could be affected by forecast bad weather.
Also at risk is her return leg at 1.45am on Sunday.
A final decision will be made by 5pm on Saturday.
President of Tynwald announces retirement
Police close Mountain road
Fuel firm says "fingers crossed" for calmer energy costs
Ring doorbells will need data protection registration - but shouldn't cost you money
Hospice UK head calls Island cuts "cack-handed" ministerial muddle
Bus drivers voting on "final offer" from government
Vampire show featuring Manx ferry cancelled
Did chief minister's message spark fuel panic-buying?