Epsilon has strengthened into a hurricane, the 10th of the Atlantic season, as it approaches Bermuda on Thursday.
Epsilon is expected to come closest to the island on Thursday night, and there is a risk of a direct impact, according to the National Hurricane Center.
The NHC said Epsilon had maximum sustained winds of 90 mph early Wednesday. The storm was located just over 400 miles east-southeast of Bermuda and it was moving northwest at 12 mph.
A tropical storm watch is in effect for Bermuda and residents have been urged to closely monitor the storm.
The storm is not forecast to impact the United States.
This year's hurricane season has had so many storms that the Hurricane Center has turned to the Greek alphabet for storm names after running out of official names.
Epsilon also represents a record for the earliest 26th named storm, beating out a storm on Nov. 22, 2005, according to Colorado State University hurricane researcher Phil Klotzbach.