After the Bowl of Winds was used in the Farm outside Ebou Dar, channeling in a radius from that spot was screwed for a long time. Saidar and Saidin were hard to control as proven by the details of Rand's Seanchan campaign in Altara and Elayne's gateway to escape the Farm. It was channeling on a huge scale to break the Dark One's hold on the weather/seasons. In Shayol Gul, we know that the windfinders were using the bowl as a special team to counter the Dark One's attempts to crush the people around Shayol Gul. Zaida and Ituralde had an interesting conversation where she says that they're meeting the Dark One's strikes and countering with their own. She says that without them the Dark One would have crushed them with gales and other nasty things. Ituralde tells her to do her part; and he'll do his. Zaida's comments tell me that the weather battle at Shayol Gul was on the same scale as the one in Ebou Dar; but for much longer ... a few days. Shouldn't that have made it nearly impossible for channelers to weave saidar and saidin around Shayol Gul? Any thought?