...IRWIN BECOMES A POST-TROPICAL CYCLONE... ...THIS IS THE LAST NHC ADVISORY...
As of 11:00 AM HST Tue Aug 29
the center of Irwin was located near 19.1, -130.3
with movement W at 17 mph.
The minimum central pressure was 1003 mb
with maximum sustained winds of about 40 mph.

Source: Summary for Post-Tropical Cyclone Irwin (EP5/EP102023)