Hurricane Erin strengthened into a powerful Category 4 storm Saturday in the Caribbean , where it threatened to dump flooding rains as it continued to grow larger and stronger, the National Hurricane Center said.

SAN JUAN, Puerto Rico (AP) — Erin strengthened into a powerful Category 4 hurricane in the Caribbean on Saturday and continues to intensify, the National Hurricane Center said. The storm is 150 miles northeast of Anguilla with maximum sustained winds of 145 mph. It is moving west-northwest at 20 mph (31 kph).

Aug 16 (Reuters) - Hurricane Erin, which is the first hurricane of the 2025 Atlantic season, could become a Category 5 hurricane, with additional strengthening expected this afternoon, the U.S. National Hurricane Center (NHC) said on Saturday.

Erin, moving near the Leeward Islands, strengthened into a hurricane on Friday morning and is expected to pass north of Puerto Rico this weekend, the National Hurricane Center said.

Puerto Rico (San Juan): Variably cloudy skies with scattered showers and isolated thunderstorms Friday. Highs near 91°F with east winds at 10–15 mph. Conditions will worsen over the weekend, with 90% rain chances on Sunday and breezy south-southwest winds up to 20 mph as Erin passes north.

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The National Hurricane Center expects this storm to gradually strengthen over the next day or so, but also warned of its potential to rapidly intensify within the next 24 to 48 hours.