 Later on July 31 , satellite imagery revealed better organization , and another reconnaissance flight found winds at 91 mph ( 151 km / h ) while flying at 1500 feet ( 457 m ) . Based on these observations , it was estimated that Chantal had intensified into a hurricane early on August 1 . Hurricane Chantal continued to intensify , slightly , and attained its peak intensity on August 1 at 1000 UTC , reaching maximum sustained winds of 80 mph ( 130 km / h ) and a minimum barometric pressure of 986 mbar ( 29 @.@ 1 inHg ) . Only three hours thereafter , Hurricane Chantal made landfall near High Island , Texas with winds still at 80 mph ( 130 km / h ) . Chantal rapidly weakened to a tropical storm at 1800 UTC on August 2 , just five hours after landfall , and quickly degenerated to a tropical depression early on August 2 . Tropical Depression continued its course and eventually dissipated over western Oklahoma on August 3 . The remnants of Chantal then moved northward over the Great Plains and was tracked northward over New York , eventually reaching New England and Newfoundland just before Hurricane Dean approached . 
