Mexico City, Oct 21 (AP) Tropical Storm Roslyn formed off Mexico's southern Pacific coast, and forecasters expect it will strengthen to a hurricane and hit land somewhere between the resorts of Puerto Vallarta and Mazatlan over the weekend.

The US National Hurricane Center said Roslyn had winds of about 75 kph on Thursday evening and was centred about 390 km south-southeast of the port of Manzanillo.

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The storm was moving west at 11 kph, but atmospheric conditions are likely to steer Roslyn on a more northerly course in coming days.

Mexico issued a tropical storm warning from the port of Manzanillo to Cabo Corrientes. Roslyn could have winds as high as 160 kph when it draws near land.

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Mexico's National Water Commission said rains from Roslyn could cause mudslides and flooding. (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)