Return journey could also be affected
The Ben-my-Chree sailing from Douglas to Heysham this evening is at risk of possible disruption or cancellation.
The Steam Packet says it is due to the forecast adverse weather conditions.
A decision on the sailing will be made by 5.30pm, it's scheduled to leave at 7:45pm.
It means tomorrow's return journey from Heysham to Douglas at 2.15am could also be affected.

Meeting to progress horse tram tracks planned says DoI minister
Huts owner determined to rebuild after storm
Production reflects on lives of two punished Manx womenÂ
Plans for 12 flats in city centre