It continues to push toward the northern Leeward Islands, where tropical storm watches are now in effect as of the 8 p.m. update from the National Hurricane Center. Intensification is expected as Erin moves toward warmer ocean temperatures over the next several days.

Tropical Storm Erin formed Monday in the eastern tropical Atlantic Ocean and could become the first hurricane of the 2025 Atlantic season later this week, forecasters say. In the Pacific Ocean, Hurricane Henriette strengthened well away from Hawaii.