Hurricane Humberto Discussion Number  14
NWS National Hurricane Center Miami FL       AL082025
1100 PM AST Sat Sep 27 2025

Humberto remains a large, powerful hurricane this evening, with a
spectacular satellite presentation.  The hurricane has a clear, 
19C, symmetric 25 nm wide eye that is surrounded by a white ring 
of very, cold (-73C) cloud tops.  The most intense deep convection 
associated with the eyewall appears to be just east of the surface 
center, where -78C (CMG) tops are discernible.  Impressive 
ventilation aloft is provided by dual outflow channels located over 
the north semicircle of the cyclone.  The latest subjective Dvorak 
data-T numbers from TAFB and SAB, and the various UW-CIMSS objective 
estimates support holding the initial intensity at 140 kt.

Humberto could undergo inner core structural changes, which will
likely cause intensity fluctuations during the next 12-24 hours.  
In fact, an earlier GPM/GMI overpass revealed a hint of concentric
outer ring development, and the UW-CIMSS MPERC is indicating up to
a 78