Thanks. BotB is the real expert in the weather forecasting area so hopefully he will add/correct anything.

I think the fact there is less crosswind is helpful, but the increased headwind means slower arrivals rate. Time based spearation which is now in helps reduce that but can't completely counter the headwind effect. Whislt yesterday wasn't too bad as the Saturday schedule tends to be less tomorrow the overall effect could be a little worse as the weekday shcedule tends to be busier.