Eugene gathered strength in the Pacific to become the fifth hurricane of the season Monday, even though it was destined to remain far from the coasts of the Mexico, the National Hurricane Center said.
It had maximum sustained winds of 75 miles (120 kilometers) per hour and was moving west-northwest at 13 miles (20 kilometers) per hour with the center about 405 miles (650 kilometers) south of Zihuatanejo, Mexico, according to the NHC.
No coastal watches or warnings were in effect, but the weather experts warned that further strengthening could be expected.
Eugene is now a category one hurricane, but the hurricane center said there were no hazards currently to land.