Figure 4- 300 mb raw upper air plot along with objectively analyzed streamlines, isotachs (kt) and divergence (10^-5 sec -1)
                            valid 1200 UTC 13 October 2001.  Note the region of enhanced diffluent and divergent flow over eastern Texas
                            and western Louisiana.  Within this region, divergence values were computed as high as computed as 6 x 10^-5 sec^-1 .