...DISCUSSION... By day 4 (Thursday), somewhat greater moisture will be advected northward ahead of the surface low with dewpoints in the 50s F. It still appears likely that a band of storms will develop along the trailing cold front as this boundary intercepts the destabilizing boundary layer across the middle MS, OH and TN Valleys. Despite an expected marginal thermodynamic environment, some risk for damaging wind will exist given strength of low-mid level winds and strong