Poor weather means a number of ferry crossings on Friday are at risk of cancellation.
The Steam Packet company says the Manxman's 8.45am Douglas to Heysham trip and the Manannan's 1.30pm Douglas to Liverpool sailing could be called off.
A decision is expected to be made by 7am tomorrow.
Also at risk are the 2.15pm Heysham to Douglas and 6.15pm Liverpool to Douglas crossings.
A decision on those will be made by midday on Friday.
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