With recon finding a lower pressure in #Ian, all eyes are on its structural evolution tonight.

The discussion from the 5PM NHC advisory mentioned the "diurnal maximum" as an opportunity to intensify overnight.

Often abbreviated as DMAX, here's a breakdown of how that works. pic.twitter.com/JbyPqNzkkL

— Jake Carstens (@JakeCarstens) September 26, 2022