Forecasters say Tropical Storm Ivo has formed off the coast of southern Mexico in the eastern Pacific Ocean and could bring ...

A tropical storm formed in the Pacific Ocean on Monday at the same time a different tropical storm was churning in the ...

Tropical Storm Henriette forms in the eastern Pacific Ocean on Monday with 45 mph winds. The National Hurricane Center ...

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Tropical cyclone is the generic term used by the National Weather Service, NOAA and the National Hurricane Center for any tropical system, even if it's in the tropical Atlantic basin.

Tropical Storm Keli forms and is second cyclone now in central Pacific Ocean, forecasters say.

Tropical Storm Iona has formed in the central Pacific Ocean and is expected to continue trekking toward the west over warm, open waters well south of Hawaii ...

Three named storms have formed so far this season, and experts are tracking a disturbance that could become the fourth.

National Hurricane Center forecasters are watching a tropical wave in the central Atlantic Ocean for possible storm formation.