What was the name of the first tropical storm of 2015 whose season began in June?
Timeline of the 2015 Atlantic hurricane season The 2015 Atlantic hurricane season was the third consecutive year to feature below-average activity, with eleven named storms. The season began on June 1 and ended on November 30, dates adopted by convention that historically describe the period in each year when most tropical cyclones form in the Atlantic basin. The season's first storm, Tropical Storm Ana, developed on May 8; the season's final storm, Hurricane Kate, lost its tropical characteristics on November 11.
Hurricane Irene–Olivia Hurricane Irene–Olivia was the first actively tracked tropical cyclone to move into the eastern Pacific Ocean from the Atlantic basin. It originated as a tropical depression on September 11, 1971, in the tropical Atlantic. The cyclone tracked nearly due westward at a low latitude, passing through the southern Windward Islands and later over northern South America. In the southwest Caribbean Sea, it intensified to a tropical storm and later a hurricane. Irene made landfall on southeastern Nicaragua on September 19, and maintained its circulation as it crossed the low-lying terrain of the country. Restrengthening after reaching the Pacific, Irene was renamed Hurricane Olivia, which ultimately attained peak winds of 115 mph (185 km/h). Olivia weakened significantly before moving ashore on the Baja California Peninsula on September 30; the next day it dissipated.