Here is a look at hodographs derived from 8 a.m. wind speed and direction data for Flint and Peoria. Simply put, the hodograph presents forecasters with a visual manifestation of how wind speed and direction changes with height. A “long” hodograph as we have below indicates high-speed shear environments. A clockwise curved hodograph would indicate that the wind profile is veering with height, whereas counterclockwise curvature of a hodograph indicates the wind fields are backing.
This Flint hodograph is derived from all wind data from the observed 8 a.m. Flint sounding. The length of the hodograph indicates quite a bit of speed shear from ground level through 7,000 meters AGL.
Similarly, the Peoria hodograph derived from all wind data from the observed 8 a.m. PIA sounding indicated quite a bit of speed shear from ground level through 7,000 meters AGL.