Steam Packet services this weekend could be at risk of disruption because of weather.
Friday's 8.30am Douglas to Heysham crossing on the Manxman will leave half an hour early, as will her return trip that afternoon.
But the company says the Manxman's 8.30am Douglas to Heysham voyage on Saturday and her return at 2.15pm could face problems.
Also at risk are the Manannan sailings to Liverpool at 3pm that day, as well as her return leg at 8pm.
And on Sunday, the 7.15am Manannan crossing to Liverpool and return at 11.15am could change, because of poor weather.
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