 Five ships recorded tropical storm force winds in association with Arthur, of which two were when the storm was extratropical.Early on July 16, a vessel with the call sign Weston reported sustained winds of 51 mph (82 km/h) from the south-southwest, which was the strongest ship reported wind speed.As the storm approached Canada as an extratropical storm, a buoy reported an 8-minute average wind speed of 45 mph (72 km/h), along with a wind gust of 60 mph (97 km/h).