What is a 'wake low?'

AUSTIN (KXAN) -- Although most of Sunday's severe weather stayed west of Central Texas, one severe storm clipped the northern portion of San Saba County. Strange enough, it was actually on the other side of the KXAN viewing area did we see reports of damage though.So what happened?Early Monday morning, a complex of storms moved west to east across the San Antonio Metro area. In its wake, an area of low pressure formed as air sank on the backside of the complex of storms. The sinking air then war