I know for a fact that hurricanes cause my house to shake.
Steve Harrigan from FNC, the reporter who does the great reporting from iraq, is in Gulfport MS.
Basically what this means is that unless something interacts with the storm or the eye begins contracting, she will maintain her current intensity and there will be no furthur eyewall replacements. IOW, all indicators are she is coming in at her present strength and there is almost nothing to stop that.
Even scarier, she is now over the coldest water she will encounter, the water temps only get higher as she approaches the coast.
CNN is now calling her a Once in 500 YR storm.