Typhoon Gilda was an intense tropical cyclone that struck regions of the central Philippines in December1959. An unusually strong late-season storm, Gilda developed on December13 from a disturbance first identified southeast of Chuuk State three days prior. Steadily intensifying, Gilda reached typhoon strength the next day and proceeded in a general westward track towards the Philippines. On December18, the typhoon peaked with maximum sustained winds of 280km/h (175mph) shortly before the storm made landfall on Samar with a slightly weakened intensity.[nb 1] After passing into the South China Sea, Gilda steadily weakened and made a final landfall in southern Vietnam before dissipating on December22 over Cambodia. Damage in the Philippines was extensive, and in some locations telecommunications were cut. Impacts in Samar were particularly severe, and in some areas the damage was the worst in 30years. Homes and crops sustained significant losses. Overall, Gilda caused the deaths of 23in the Philippines and US$1.5million in damage.[nb 2]
On December10, surface observations from Chuuk State suggested that a tropical cyclone was potentially developing to the island's southeast. As a result, the Joint Typhoon Warning Center(JTWC) requested aircraft reconnaissance on the system, which located a defined but weak circulation center 640km (400mi) southeast of Guam associated with the disturbance.[1] Over the next few days, the system slowly intensified, with the Japan Meteorological Agency(JMA) determining the storm to have reached tropical depression strength at 1800UTC on December11 and the JTWC indicating tropical storm intensity by December13.[2] That day, reconnaissance indicated that the storm had two distinct circulation centers, both weak in intensity. However, these vortices later consolidated, allowing for Gilda to quickly intensify to typhoon status at 0000UTC on December14;[2] by this time a small eye had been identified within the cyclone.[1]
After reaching typhoon status, Gilda assumed a west-northwesterly course at a steady pace while gradually intensifying. The development of a trough in the Luzon Strait caused the forward motion of the typhoon to slow on December16, prompting the JTWC to forecast a recurvature to the north and northeast at the time. However, the trough remained weak, allowing for Gilda to accelerate westward towards the Philippines.[1] At 1800UTC, the JMA indicated that Gilda had peaked with a minimum barometric pressure of 925mbar (hPa; 27.32inHg). Twelve hours later, the storm attained its peak maximum sustained winds of 280km/h (175mph), which Gilda maintained for another twelve hours. Shortly after 0000UTC on December18, Gilda made landfall on Samar Island in the Philippines with a slightly weakened intensity. By the day's end, the typhoon emerged into the South China Sea, where it began to steadily weaken. At roughly 1200UTC on December21, the system was downgraded to tropical storm status, at which time it made a final landfall near Phan Rang–Tháp Chàm in Vietnam. Weakening inland, the tropical cyclone was last noted over western Cambodia on December22.[2]
Preparations and impact
On December19, a LORAN station in the western Philippines documented maximum sustained winds of 150km/h (90mph) in addition to gusts as high as 260km/h (160mph). Across nine provinces in the central Philippines, at least 23people were killed and another 60,000were displaced,[1][3] and Gilda was considered one of the country's worst tropical cyclones in recent memory.[3] The sinking of the motorship Rizal in the waters off of southern Luzon resulted in the deaths of 14people, though 64others survived the capsizing.[4] Homes and public work projects sustained heavy damage from the storm. On Samar, damage to crops, homes, and communication lines totaled US$500,000.[1] Some of the damage on the island was considered the worst in 30years.[5] About 2,500homes were swept away by storm surge and flood in 27towns.[6] The coconut industry suffered a major blow from the typhoon, and local authorities indicated that coconut production would take roughly four years to recovery to pre-typhoon levels.[3] The fallen lines disrupted telecommunications during the storm's passage.[7] A group of 100teachers attending a convention were feared to have been killed in Zumarraga, Samar but were later found.[8] Overall, damage from Gilda in the Philippines amounted to US$1.5million.[1] Following the storm, Philippine government welfare agencies quickened recovery efforts due to the approach of Christmas.[3] Damage from Gilda in Vietnam, if any, remains unknown.[1]
Tilden, Charles E. (1959). "1959Annual Typhoon Report"(PDF). San Francisco: United States Fleet Weather Central/Joint Typhoon Warning Center. pp.165–70. Retrieved July 18, 2014.
UNC-Asheville Atmospheric Sciences Department. "1959 GILDA (1959346N06147)". International Best-Track Archive for Climate Stewardship. Asheville, North Carolina: University of North Carolina at Asheville. Retrieved July 11, 2014.
"160Victims Reported In Typhoon Gilda". Lodi News-Sentinel. No.7199. Lodi, California. United Press International. December 22, 1959. p.14. Retrieved July 18, 2014.
"Typhoon Gilda Leaves 20,000Without Homes". The New London Evening Day. Vol.78, no.145. New London, Connecticut. Associated Press. December 22, 1959. p.25. Retrieved July 18, 2014.
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