Two sailings today have been cancelled - and the Steam Packet company says another four are at risk this weekend.
Today, bad weather meant both the Manxman's 8am Douglas to Heysham crossing and her 1.45pm return have both been called off.
Tomorrow's 8am Heysham crossing and 1.45pm return trip are under threat, with a decision due by 6am on Sunday.
Also at risk is the Manannan's 3pm Douglas to Liverpool voyage and 7.15pm return - a decision on both of those will be made by 1pm on Sunday.
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