However, as it is not a race where the strategy needs to be adapted to the weather conditions at a set date, rather it needs to be completed within a set calendar window, the opportunity to optimize weather conditions will be present.
So, for a TT course of 21 km going out and back, what would be preferrable; headwind going out or headwind going back? Supplementary information is that the only real uphill section (2.7 km long, at 1.5% average, whereof steepest section 1 km just below 4% average) comes just 1.5 km into the course. Rest of the course is fairly flat. The (ambitious) goal is an average speed of 46+ km/h.
I am thinking that to minimize metabolites accumulation early in the effort, a tailwind going out would be preferrable, to ease the effort going uphill (or just go uphill faster) and then go full gas into the headwind on the way back.
The forecast indicates that both head- and tailwind may be selected on different days, with wind speeds of 2-3 m/s (7-10 km/h). Stronger wind speeds may also be selected (6 m/s tailwind going out), however, I am thinking less wind is better when going out and back.