Well the forecast is looking good for tomorrow - a bit of rain in the morning but wind should be around force 5 then turning more NW and increasisng to a 6 by the afternoon.
If you have ever wondered about true boat speed/ apparent wind etc etc that 'yachties' are always going on about, I just came across the above formula. Simple! Just carry it around with you and do the math. Less complicated people use their instruments!
What a useless lot of information..........I'm waffling, time to stop!