Two ferry sailings have been cancelled this morning, with more at risk because of weather conditions.
The Steam Packet Company says the Manxman's 8am Douglas to Heysham crossing and return trip at 1.45pm have both been called off.
A decision on the Manannan's 3pm voyage to Liverpool and return leg at 7.15pm will be made by 1pm.
The company says the Manxman's 7.15pm Heysham crossing is now due to set off at 5pm.
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