 During the afternoon of September 10 , the central pressure of the storm decreased to 961 mbar ( 28 @.@ 38 inHg ) but sustained winds did not exceed 90 mph ( 140 km / h ) according to the NHC . Luis maintained this intensity until it made landfall on the Avalon Peninsula in eastern Newfoundland early on September 11 . While tracking over Newfoundland , cold , dry air became entrenched in Luis 's circulation and the system began to merge with the approaching trough . The NHC issued their final advisory on Hurricane Luis at 0900 UTC on September 11 as it tracked nearly 65 mph ( 100 km / h ) to the northeast and transitioned into an extratropical cyclone . The extratropical remnants persisted for 30 more hours over the North Atlantic Ocean before being absorbed by the trough near the southern coast of Greenland late on September 12 . 
