Question: What was the name of the first tropical storm of 2015 whose season began in June?

Context articles: Tropical Storm Ana (2015)
Tropical Storm Amelia (1978)
Tropical Storm Jerry (1995)
Tropical Storm Ana (2009)
1960 Texas tropical storm
Tropical Storm Arthur (1996)
Tropical Storm Khanun (2012)
Timeline of the 2015 Atlantic hurricane season
Tropical Storm Bonnie (2016)
Tropical Storm Arthur (2008)

Tropical Storm Ana was the earliest recorded tropical cyclone to make landfall in the United States in any given year.
 A relatively rare pre-season system, Ana was the first tropical storm of the 2015 Atlantic hurricane season.
 It developed as a subtropical cyclone from a non-tropical low north of the Bahamas, and intensified to attain peak winds of 60 mph before transitioning into a fully tropical cyclone early on May 9.
 Sustained in part by the warm waters of the Gulf Stream, Ana made landfall along the northeast coast of South Carolina early the next morning, becoming the earliest U.S. landfalling system on record.
 Overall, damage from the storm was minor.
 Heavy rainfall and gusty winds affected parts of the Carolinas, and some vulnerable beaches endured coastal flooding and several feet of erosion.
 Gusty winds damaged trees and powerlines, causing sporadic power outages, and a weak tornado was reported in association with Ana.
 In North Carolina, two deaths—one direct and one indirect—were attributed to the storm.
Tropical Storm Amelia was a weak, poorly organized tropical storm that formed during the 1978 Atlantic hurricane season.
 Amelia developed from a tropical wave that moved through the Atlantic Ocean uneventfully.
 The disturbance then entered an area of the Gulf of Mexico that was conducive to tropical cyclogenesis and became the first tropical depression of the season, after which it was forecast to make landfall before any significant intensification.
 However, the tropical depression defied predictions, quickly strengthening into a weak tropical storm just hours before making landfall in Corpus Christi.
 The storm lasted roughly a day over land before becoming unidentifiable after being active for just under 48 hours.
 After dissipating, the storm caused a severe flooding disaster in Texas.
Tropical Storm Jerry was a tropical storm that caused severe flooding throughout the southeast United States in August of the 1995 Atlantic hurricane season.
 Jerry, the tenth tropical storm of the season, formed from a tropical wave that moved off the African coast in early August, which organized into a tropical depression and tropical storm between the Bahamas and Florida later in the month, before striking Florida in the latter part of the month.
 Its remnant circulation persisted until five days after landfall.
 The rainfall it produced, amounting to over 12 in in several locations across Florida, Georgia, and South Carolina, was responsible for $40 million (2005 USD) in damage and 6 deaths.
 At the time, Jerry was the earliest tenth storm to form in a season on record, until Jose in the 2005 season overtook it.
 Tropical Storm Jerry was also the first tropical cyclone to make landfall in South Florida since Hurricane Andrew in 1992.
Tropical Storm Ana was the first named storm of the 2009 Atlantic hurricane season and the first tropical cyclone to impact the Caribbean islands during 2009.
 Forming out of an area of low pressure associated with a tropical wave on August 11, Ana briefly attained tropical storm intensity on August 12 before weakening back to a depression.
 The following day, the system degenerated into a non-convective remnant low as it tracked westward.
 On August 14, the depression regenerated roughly 1,075 mi (1,735 km) east of the Leeward Islands.
 Early on August 15, the storm re-attained tropical storm status, at which time it was named Ana.
 After reaching a peak intensity with winds of 40 mph (65 km/h) and a barometric pressure of 1003 mbar (hPa; 29.65 inHg), the storm began to weaken again due to increasing levels of wind shear and the unusually fast movement of Ana.
 In post-storm analysis, it was discovered that Ana had degenerated into a tropical wave once more on August 16, before reaching any landmasses.
The 1960 Texas tropical storm brought severe but localized flooding to southeastern Texas in June 1960.
 The first tropical cyclone and first tropical storm of the annual season, this system developed from an area of showers and thunderstorms in the Bay of Campeche on June 22.
 Initially a tropical depression, it strengthened and was estimated to have reached tropical storm status on June 23.
 Early on the following day, the storm peaked with winds of 45 mph (75 km/h).
 Later that day, it made landfall near Corpus Christi, Texas, at the same intensity.
 The storm weakened slowly and moved across the Central United States, before dissipating over Illinois on June 29.
Tropical Storm Arthur caused minimal flooding in the Carolinas in mid-June 1996.
 The first tropical cyclone and named storm of the annual Atlantic hurricane season, Arthur originated from an area of increased convection east of the Bahamas on June 16.
 Gradually, the system increased in organization, and was designated as a tropical depression on June 17.
 The depression tracked north-northwest and became Tropical Storm Arthur while just offshore the Southeastern United States on June 19.
 Later that day, Arthur peaked with maximum sustained winds of 45 mph (75 km/h), but weakened slightly before making landfall in North Carolina early the following day.
 After striking North Carolina, Arthur tracked out to sea and weakened further to a tropical depression.
 By June 21, Arthur transitioned into an extratropical cyclone.
 Overall, impact from Arthur was minimal, limited to light rainfall and moderate surf in North and South Carolina, as well as a tornado in Florida.
 Total damage amounted to $1 million (1996 USD), but no fatalities were reported.
 Oddly enough, 18 years later in 2014, around the same time, another tropical cyclone with the same name impacted areas very similar to where this tropical storm impacted.
Severe Tropical Storm Khanun, known in the Philippines as Tropical Storm Enteng, was the first tropical cyclone to directly impact Korea in two years.
 It is the 8th named storm, the 3rd severe tropical storm, and overall, the 13th tropical cyclone to be monitored by the Japan Meteorological Agency (JMA) during 2012.
 Khanun was also the first tropical storm to make a landfall over Korea in 2012.
 Khanun means "jack fruit" in Thai.
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.
Tropical Storm Bonnie was a weak but persistent tropical cyclone that brought heavy rains to the Southeastern United States in May 2016.
 The second storm of the season, Bonnie formed from an area of low pressure northeast of the Bahamas on May 27, a few days before the official hurricane season began on June 1.
 Moving steadily west-northwestwards, Bonnie intensified into a tropical storm on May 28 and attained peak winds six hours later.
 However, due to hostile environmental conditions, Bonnie weakened to a depression hours before making landfall just east of Charleston, South Carolina, on May 29.
 Steering currents collapsed afterwards, causing the storm to meander over South Carolina for two days.
 The storm weakened further into a post-tropical cyclone on May 31, before emerging off the coast while moving generally east-northeastwards.
 On June 2, Bonnie regenerated into a tropical depression just offshore North Carolina as conditions became slightly more favorable.
 The next day, despite increasing wind shear and cooling sea surface temperatures, Bonnie reintensified into a tropical storm and reached its peak intensity.
 The storm hung on to tropical storm strength for another day, before weakening into a depression late on June 4 and became post-tropical early the next day.
Tropical Storm Arthur was the first Atlantic tropical storm that formed during the month of May since 1981.
 The first tropical cyclone of the 2008 Atlantic hurricane season, the storm formed on May 30, 2008 from the interaction of two tropical waves and the remnants of the eastern Pacific Tropical Storm Alma, which had crossed into the western Caribbean Sea.
 The system quickly organized and was named Tropical Storm Arthur on May 31, while crossing the shore of Belize.
 It dissipated two days later over the Yucatán Peninsula in Mexico.
 Arthur and its remnants triggered severe flooding which killed a reported nine people and affected 100,000 more in Belize.
 Damage was light to moderate, estimated at $78 million (2008 USD).