Sailings to and from Heysham tonight and early tomorrow morning are facing potential disruption.
The Steam Packet Company is advising the 7.45pm Ben-my-Chree journey to the and its return at 2.15am are in doubt due to poor weather forecast.
Officials say the master will make a final decision on both crossings by 5.30pm this evening.
Currently, morning and afternoon services today are unaffected.
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