The Steam Packet says more sailings are at risk of being called off this week.
Bad weather means the Ben my Chree's 7.45pm crossing on Wednesday could be called off, as well as her return trip on Thursday morning at 2.15am.
The company says the vessel's master will make a final decision about both scheduled crossings by 5.30pm on Wednesday.
It's after disruption to services on Monday and Tuesday because of strong winds.
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