 Thereafter , Charley turned eastward and then east @-@ northeastward while tracking over decreasing sea surface temperatures ( SST 's ) . Early on September 27 , Charley was downgraded to a tropical storm . Later that day , Charley crossed over Terceira Island in the Azores with winds of 65 mph ( 100 km / h ) . Charley gradually lost tropical characteristic , and by 1800 UTC on September 27 , it had transitioned into an extratropical storm . The remnant system accelerated northeastward toward the British Isles , where it merged with another extratropical low on September 29 . While passing through the Azores , Charley produced tropical storm force winds , with the Lajes AFB reporting sustained winds of 53 mph ( 85 km / h ) and gusts reaching 82 mph ( 132 km / h ) . No other effects from Charley were reported in the Azores . 
