Watching the satellite, Eta's eye just got even BETTER defined, and those extreme cold cloudtops now make up the entire CDO. Similar to Wilma, to be honest.
Delta clearly won't be as strong as Laura, and possibly not a major hurricane upon landfall. Nevertheless, quite a severe blow to the Gulf Coast of Louisiana, especially following the devastation of Laura in August.
Surveillance data from the NOAA G-IV aircraft suggest that Delta's circulation
does not extend as markedly into the upper troposphere as one would
expect for a major hurricane.
Very interesting.