MIAMI (AP) — Tropical Storm Priscilla was strengthening slowly in the Pacific Ocean off the coast of Mexico early Sunday.

The Miami-based National Hurricane Center reported that Priscilla was classified as a large tropical storm, with its winds extending 140 miles (220 kilometers) from the center.

As of now, the storm has maximum sustained winds of 65 mph (100 kph) and is located approximately 305 miles (495 kilometers) south-southwest of Cabo Corientes, moving toward the northwest at 5 mph (7 kph).

A tropical storm watch has been issued for part of the southwestern Mexico coastline, particularly from Punta San Telmo to Punta Mita, since tropical storm conditions are possible in the region on Sunday and Monday. Residents can expect rainfall between 3 to 6 inches (7.5 to 15 centimeters) and are advised to remain vigilant due to potential life-threatening surf and rip current conditions.

Forecasts suggest that Priscilla could reach hurricane status by Sunday night or early Monday while generally continuing its path parallel to the coast in the coming days.

Meanwhile, another tropical storm, Octave, is currently moving far from shore with no landfall or coastal warnings anticipated.

Octave's maximum sustained winds have increased slightly to 70 mph (110 kph), but it poses no immediate threat to coastal areas.

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