The Calhoun CZO received nearly 25 cm rain in 24-hr Sunday 4 October. Paul Schroeder shot a photo of Ryan Fimmen's 2004 "Tyger Stripe" soil excavation that was completely inundated with water several days after the rain (10/10/2015), despite its location on the highest part of the landscape, on the highest order interfluve in all of Union County.
For more on the "Tyger Stripes" see Fimmen et al. 2008 and Richter et al. 2007:
Fimmen, R.L., et al. 2008. Biogeochemistry 87:127-141, http://dx.doi.org/10.1007/s10533-007-9172-5
Richter, D. deB., et al. 2007. The Rhizosphere and Soil Formation, in: The Rizosphere: An Ecological Perspective, Z. G. Cardon and J. L. Whitbeck, eds. Academic Press, Waltham, MA, http://dx.doi.org/10.1016/B978-012088775-0/50009-4