Sailings from tomorrow until Sunday are facing possible disruption because of the threat of poor weather.
Voyages to and from Heysham from the 8.45am service to the Lancashire port on Thursday right through to the 2.15pm Heysham to Douglas journey on Sunday (February 14) are all subject to delays or cancellation.
A final decision on the Thursday crossings at 8.45am and 2.15pm will be made by 7am tomorrow morning.
Meanwhile, a verdict on the evening crossing at 7.45pm will come no later than 5.30pm on Thursday.
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