According to SST data from NOAA, this rapid regeneration is over a relatively cool location in the GOM:

SSTs: http://www.aoml.noaa.gov/phod/dataphod1/work/HHP/NEW/2008252gosst.png
Huricane Heat Potential: http://www.aoml.noaa.gov/phod/dataphod1/work/HHP/NEW/2008252go.jpg

Also, IR data is showing a rapid reformation of a strong core, though aircraft recon has not indicates winds or pressure beginning to pick up. It's headed strait toward the Loop current - so we will see what happens over the next 24 hours.