Flood stories do not support the Noachian flood at all. All they proves is that huge, devastating floods are within the common historical experience of human cultures - that's all. . . . steve2
Good point Steve . . . and relevant.
Interestingly, most of the commonality in flood legends originates from the same period 10-15,000 years ago. Coincidentally this was still in the melt stage from the last inter-ice-age. Large and regular floods would have been a common feature around that time, and while being a global phenomena, would have been multiple localised events.