High CI in an area of showers

Watching the CI values along a line of weak showers, the 1945Z image popped up an 83%. The corresponding radar image out of FGF showed nothing more than a weak thunderstorm in the area with only one lightning strike detected (not displayed)

Fast forward to 2000Z, the higher CI values (71%) have moved westward along the line. This makes sense as the line of weak showers/thunderstorms continue to build west. There has been no further development of cell that had the earlier flag of 83%.

Fast forward even further to the 2015Z images. The CI output disappears and the corresponding radar image shows no further development.

-Shasta