Hurricane Erin became the first hurricane of the 2025 Atlantic season Friday (Aug. 15) morning, strengthening as it moves toward the northeast Caribbean and prompting tropical storm watches for parts of the northern Leeward Islands.

Erin strengthened into a Category 1 hurricane with sustained winds of 75 mph on Friday morning more than 400 miles east of the northeastern Caribbean’s Leeward Islands, according to the National Hurr...

Though compact in size, with hurricane-force winds extending 30 miles (45 km) from its center, the Hurricane Center said Erin was expected to double or even triple in size in the coming days.