This in from Wightink.
Due to the forecast adverse weather conditions in the Solent area for Sunday 28/2/10, Wightlink will be running an hourly service between Portsmouth and Fishbourne, from 06:00 until 21:00 ex Gunwharf and from 07:00 until 22:00 ex Fishbourne. Outside of these times, the normal timetable will apply.
Wightlink would like to apologise for any inconvenience that this may cause. Passengers concerned about their sailing(s) should call Wightlink reservations on 0871 376 1000.