W to E, i.e. tailing, besides not that much of gusts what I can find.
Most influential (besides the riders' initiative) will probably be the heat and then several of the descents in "the small Apennines" which they ride directly up from Florence.
A profile pic doesn't reveal much.
Especially the first one after 50k, the descent from Vacilo Tre Faggi invites for attacks with technical and convoluted slopes.
A thing for Pidders maybe?
Edit:
Besides, the roads through the Apennines are not exactly big wide highways - an endless path of twists and curls.
I would say from the 50K mark and up to 16K from the finish line (190K mark) it's a rather technical route that must be a treat for those with aim of breakaway victory.
IMO a perfect stage design with the last 16K for a pursuit from a decimated group of sprinters.
I.e. unless the race escalates into completely different stories before this point....
Hmm...!
Couldn't resist digging further into those hairy slopes.
I assume the DSs and their pathfinders have read the lesson thoroughly here.
The more I delve into it, the more technical I realize this stage is.
Almost a punishing technicality, serpentine turns, small towns with toxic edgy turns, smaller sections of steeper descents, small up/downs, etc.
This spread over a continous 140k stretch, right from the riders reach the first summit.
Just one example is the descent to the village of Novafeltria, a few hill climbs before reaching the bottom of the San Marino climb. Seems like a rollercoaster with a whopping drop at the beginning.
But there is way more of this.
Neither is anything visible on a forgiving stage profile, but there are enough notes to fill in the DS's road books...
Quite a stressing start for the riders with maybe not so many race kilometres in their legs...