Erin has strengthened into a hurricane as it approaches Puerto Rico and the Virgin Islands, bringing heavy rains that could cause flooding and landslides.

Tropical Storm Erin became the first hurricane of the 2025 Atlantic hurricane season, and was expected to soak the Virgin Islands and Puerto Rico with heavy rain on Friday night.

Tropical Storm Erin is still moving quickly westward and is forecast to become a hurricane in a few days over the central tropical Atlantic, the NHC said.