Check this out, awesome shear on the western face of the inner eyewall. It's been there for two frames now, so it might not be an artifact.
http://www.intellicast.com/Local/USLocalWide.asp?loc=kbyx&seg=LocalWeather&prodgrp=NEXRADimagery&product=RadialVelocity&prodnav=none
Whoa; cool.