SFMR on the current recon mission has already found 58kt sfc winds in squalls on what appears to be the east side of the center. Whether or not the 48kt and 58kt winds are representative of the entire circulation, I'll leave that for NHC to decide. Despite that, Humberto is a rather small system that seems to be coming together at a decent clip as it approaches the coast today. A 60-65mph storm at landfall is not out of the question, but the primary concern is and still would be rainfall.

Edit: extrap SLP (from 850mb) is 1002mb. More tropical storm force winds are being found, though not at the 58kt level of before.