Red Cheq, dont take your birds training in an East wind - I wont even take my old birds in an East wind.
It is debilitating for the pigeons - if you look around, you dont see many wild birds flying either. Cold or hot - they will have a hard time in it and they are bettrer off in the loft.
Sure, they have to race in an East wind and they will but it will take more out of them
than a nose-ender.
Good luck with your training.
DD