sentences:  At the time, Hurricane Guillermo's central pressure of 919 mbar (hPa; 27.14 inHg) established it as the second-most intense Pacific hurricane on record, behind Hurricane Ava of 1973.However, later in the 1997 season, Hurricane Linda set a new intensity record, and in subsequent years, hurricanes Kenna, Ioke, Rick, Marie, Odile, and Patricia all achieved lower minimum pressures, leaving Guillermo in ninth place.Guillermo persisted for 16.5 days from its classification as a tropical depression to its transition into an extratropical storm, making it the sixth longest-lasting storm in the basin.