I think it's 90% from flight level, but I can't find the ob anywhere and he never came back to say where it was from.
I agree that there are not likely to be many winds sustained even at 70mph on land.
I thought it was 80%, but either way, you're looking at 68-70 MPH winds.
I doubt there will be any more intensification. The vortex report didn't show an eye, and I can't see one on radar. The center of circulation is looking a bit chaotic, much more than two hours ago and quite a bit more than four hours ago or so, when there was the beginning of an eye that quickly broke apart.