Taking the concensus that CB clusters in the ITCZ may well have been at least a contributory factor in the loss of AF447 - since there are daily trans-Atlantic tracks promulgated in relation to jetsreams - would it be beneficial to develop a similar track forecasting system for trans-hemispheric flights to avoid significant active areas of the ITCZ? (each area of ascending air has an area of generally descending air not too far away - reasonably predictable at least on a scale of several hours).