On October 1, Isaac turned northeast and struck Newfoundland as a tropical storm. Two days later, it merged with a newly formed baroclinic low off the east coast of the United States. The merged system was forecast to move toward the area between Greenland and Great Britain. Isaac produced rainfall over Newfoundland of up to 25 mm (1 in). No deaths or damage were reported. Isaac was the second storm to affect Newfoundland during the season, the other being Hurricane Florence.