Tropical Storms Karina and Lowell form in the Pacific Ocean as Dolly churns in the Atlantic

Tropical Storms Karina and Lowell formed Thursday in the Pacific Ocean, both of which were expected to become hurricanes in the next few days, the National Hurricane Center said.

MIAMI — Tropical Storms Karina and Lowell formed Thursday in the Pacific Ocean, both of which were expected to become hurricanes in the next few days, the National Hurricane Center said.

Tropical Storm Karina was located about 825 miles (1,330 kilometers) south of the southern tip of Baja California, with maximum sustained winds of around 45 mph (75 kph), according to an advisory from the Miami-based hurricane center.

Tropical Storm Lowell was about 1,765 miles (2,840 kilometers) west-southwest of the tip of Baja California, with maximum sustained winds of around 40 mph (65 kph).

There were no coastal watches or warnings in effect for either storm, though the hurricane center warned swells from Karina could bring life-threatening surf and rip currents to portions of southwest Mexico and the Baja California Peninsula over the weekend.

Earlier Thursday, Tropical Storm Dolly formed in the Atlantic Ocean far from land, and forecasters said it could bring heavy rain to portions of the Caribbean.