Decision to be made by 1pm tomorrow
More sailings could be subject to possible disruption or cancellation this week.
A number of journeys between the Island and Merseyside may be impacted by forecast adverse weather.
Tomorrow afternoon's Manannan sailing to Liverpool, and its return leg may be affected, along with Thursday morning's early boat.
The Steam Packet says a decision will be made by 1pm tomorrow.
Meanwhile a decision for the 3.15am Thursday sailing will be made by 6pm.
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