0.5 Deg. Base Reflectivity

6:37 PM

0.5 Deg. Base Reflectivity 23:36Z

A Tornado Warning is issued for Eastern Henry County, IL as the supercell continues it's east-northeast course through Western Illinois. On the above 0.5 Degree Base Reflectivity image the hook structure and tight reflectivity gradient continues. There is an interesting feature "shooting" out from the supercell to the south-southeast. It may be a three body scatterer. It occurs when very large hail in a thunderstorm causes the radar beam to do odd things.

0.5 Deg. Storm Relative Velocity

6:37 PM

0.5 Deg. Storm Relative Velocity 23:36Z

Although the purple color indicates range folding, it can still be seen that significant rotation is occurring with this supercell.

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