SAN JUAN, Puerto Rico — Beryl grew into a hurricane Saturday as it churned toward the southeastern Caribbean, with forecasters warning it was expected to strengthen into a dangerous major storm before reaching Barbados late Sunday or early Monday.
A major hurricane is considered Category 3 or higher, with winds of at least 111 mph (178 kph). On Saturday night, Beryl was a Category 1 hurricane, marking the farthest east that a hurricane formed in the tropical Atlantic in June, breaking a record set in 1933, according to Philip Klotzbach, Colorado State University hurricane researcher.
A hurricane warning was issued for Barbados, St. Lucia, Grenada, and St. Vincent and the Grenadines. A tropical storm warning was posted for Martinique and Tobago and a tropical storm watch for Dominica.
''It's astonishing to see a forecast for a major (Category 3+) hurricane in June anywhere in the Atlantic, let alone this far east in the deep tropics. #Beryl organizing in a hurry over the warmest waters ever recorded for late June,'' Florida-based hurricane expert Michael Lowry posted on X.
Beryl's center was forecast to pass about 26 miles (45 kilometers) south of Barbados, said Sabu Best, director of the island's meteorological service. Forecasters then expect the storm to cross the Caribbean on a path toward Jamaica and eventually Mexico.
Late Saturday, Beryl was centered about 595 miles (955 kilometers) east-southeast of Barbados, and its maximum sustained winds had risen to 85 mph (140 kph). It was moving west at 20 mph (31 kph).
''Rapid strengthening is now forecast,'' the Miami-based U.S. National Hurricane Center said.
Atmospheric science researcher Tomer Burg noted that Beryl was just a tropical depression with 35 mph winds Friday.