While I am seeing the "open eye" like everyone else. I used a site that has 4 levels of tilt on the Base Reflectivity.
The 3rd level up. indicated a 'bat wing' open area on the southern half of the Eye. Looping this level. The very heavy echoes are still rotating around the northern side of the eye.
Something that I think couldn't happen if the eye was open.
I'm wondering if the heavy rain on the northern Eye Wall is causing the radar to attenuate the echoes on the southern eyewall.
In other words...it's raining so hard that the radar can't see through it.
Just my thoughts...on the 'open eye' signature.
( I haven't looked at any satellite pics...so I'm blind in that respect)