This in from Wightlink, in their own words. Ed
Due to the high winds forecast this afternoon we have changed the charter vessel that we are using on this route.
As this is a larger vessel, the crossing will be longer because we have to sail around the fort.
To help, we have added the following additional sailings:
Portsmouth Harbour to Ryde Pier Head: 16:40 and 18:40
Ryde Pier Head to Portsmouth Harbour: 17:25
We’re sorry for the inconvenience this will cause, if you are concerned about your sailing please call us.