Round the Island forecast
Even though the large boats start at an advantageous time, in terms of tidal stream, for a quick rounding, I don't think that the wind will oblige. It looks like a small, weak area of low pressure will invade from the west and track up the Bristol Channel, leaving the Isle of Wight in a pretty weak pressure gradient through most of Saturday.
The winds look pretty light and south westerly/westerly in direction. Should the system run through quicker than the computer models expect, then the winds would be northwesterly and quite fresh (18-22 knots). My view is that these winds will come through on Sunday.
I might be eating my words come Saturday, though my advice for an owner would be to think about setting up the boat for lightish conditions.
For more weather images see page 2...