Photo by Craig Johnson
Cirrostratus and cirrus fibratus at sunset, Cedar Falls, Iowa. After several days of overcast skies and rain the end of the storm was finally visible on the western horizon. The storm's cloud shield had a sharp cutoff on its western edge. The gradual transition from a low overcast finally culminated in this dramatic sharp edge from clouds to clear sky. The cirrus edge marked a southwest to northeast jet stream that extended from the Midwest to Lake Superior and onward to Canada. The surface low by this time was northeast of the Great Lakes. Much drier air and colder air at low levels had already wiped out low and middle clouds - only the cirrus remained.
Storms begin and they have an end. This marked the end.