Typhoon Guchol (2012)

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This article is about the 2012 typhoon. For other storms of the same name, see List of storms named Guchol and List of storms named Butchoy.
Typhoon Guchol (Butchoy)
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Areas affectedPhilippines, Japan
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Part of the 2012 Pacific typhoon season

Typhoon Guchol, known in the Philippines as Super Typhoon Butchoy, was a powerful tropical cyclone which became the first typhoon to make landfall in Japan on June since 2004.[1] The storm formed as tropical disturbance south-southeast of Pohnpei on June 7, and was upgraded to a tropical depression on June 10. The system later intensified in favorable conditions, and reached typhoon intensity on June 15. It reached peak intensity late on June 17, before making landfall over Japan as a typhoon on June 19. The system became extratropical shortly after traversing Japan and was last noted by the Japan Meteorological Agency on June 22.

Authorities issued evacuation orders for more than 150,000 people in central, eastern and northeastern Japan, Kyodo News said, with warnings of dangerous landslides from the heavy rain. Heavy rains and strong winds affected much of Honshu as the storm moved across the region. One person was killed and fifty-two others were injured across the country.

The name "Guchol" means "turmeric" in a Micronesian language.

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

In early June, a tropical disturbance, embedded within the end of a monsoon trough, formed to the southeast of Guam.[2] The Joint Typhoon Warning Center (JTWC) then started to monitor the system late on June 7, as it had scattered deep convection over its poorly-defined low-level circulation center (LLCC), but was under an environment of 28–30 °C (82–86 °F) sea surface temperatures, low vertical wind shear, good divergence and enhanced poleward outflow.[3] As the system moved westward, it significantly organized, prompting the JTWC to issue a Tropical Cyclone Formation Alert (TCFA) by the next day.[4] However, the JTWC canceled the TCFA late on June 9, as its center became elongated.[5] The system then started to reorganize by the next day,[6] and by June 11, the Japan Meteorological Agency (JMA) upgraded the system into a tropical depression.[7] The JTWC later followed suit, as formative bands wrapped around its center.[8] As it continued westward, the system struggled to organize, with its center becoming ill-defined.[9]

By 03:00 UTC the next day, the JTWC reported that the tropical depression had intensified into a tropical storm, as improved convective banding began wrapping into its center.

subtropical ridge.[16][2] At 21:00 UTC that same day, the JTWC upgraded Guchol to a Category 3-equivalent typhoon.[17] The JMA upgraded Guchol to a typhoon three hours later, on June 16.[18] Nine hours later, Guchol strengthened into a Category 4-equivalent typhoon, as a 18 nmi (33 km) symmetric eye formed.[19] Guchol ultimately reached its peak intensity at 18:00 UTC that same day, with 10-minute sustained winds of 100 knots (185 km/h; 115 mph) and a central pressure of 930 hectopascals (27 inHg), according to the JMA.[20] The JTWC estimated Guchol to have 1-minute sustained winds of 130 knots (240 km/h; 150 mph), although it noted that the system's eye had become less symmetric.[21]

By the next day, Guchol started its

extratropical transition.[1][2] Three hours later, it made its second landfall in eastern Aichi Prefecture.[1] Subsequently, the JMA downgraded Guchol to a severe tropical storm,[29] and the JTWC issued their final advisory on Guchol.[30] Traversing the Kanto-Koshin region, the system emerged to the coast of Fukushima Prefecture, with the JMA issuing their final advisory by the next day, as it fully became an extratropical cyclone.[1][31] The remnants of the system was last noted near Hokkaido two days later.[20]

Preparations and impacts

Philippines

Although Typhoon Guchol (locally known as Butchoy) remained away from the Philippines, its slow movement enhanced the southwest monsoon over the country and resulted in widespread heavy rain. The effects of these rains were relatively limited though, with isolated flooding over parts of Marikina, Navotas, Malabon, Marilao, and Guagua, with no major damage reported. However, one person drowned in Rizal.[32]

Japan

Typhoon Guchol approaching Japan on June 19

Authorities issued evacuation orders for more than 150,000 people in central, eastern and northeastern Japan, with warnings of dangerous landslides from the heavy rain. 452 domestic and international flights were cancelled, affecting 35,000 passengers, while travel on regional and high-speed trains had been hit with delays and cancellations, with some roads also been closed.[33]

As the typhoon moved through Japan, heavy rainfall fell throughout the

Numazu, Shizuoka after being caught in a building collapse. 79 people were injured, five of which had serious injuries, along with 402 homes affected. Landslides were reported in various prefectures.[34] Total economic losses were estimated in excess of ¥8 billion (US$100 million).[35]

See also

References

  1. ^ a b c d e 平成24年 台風第4号に関する気象速報 [Weather report regarding Typhoon No. 4 in 2012] (PDF) (Report) (in Japanese). Japan Meteorological Agency. June 21, 2012. Archived from the original (PDF) on August 20, 2012. Retrieved October 1, 2023.
  2. ^ a b c d Detailed Cyclone Reviews : Super Typhoon 05W (Guchol) (PDF) (Report). Annual Tropical Cyclone Report. Pearl Harbor, Hawaii: Joint Typhoon Warning Center. 2012. p. 41. Retrieved September 28, 2023.
  3. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans, 2030Z 7 June 2012 Reissued (Report). United States Joint Typhoon Warning Center. 7 June 2012. Archived from the original on May 23, 2024. Retrieved 2 September 2023.
  4. ^ Tropical Cyclone Formation Alert (Invest 90W) (Report). United States Joint Typhoon Warning Center. 8 June 2012. Archived from the original on June 9, 2012. Retrieved 24 September 2023. Alt URL
  5. ^ Tropical Cyclone Formation Alert (Invest 90W) Cancellation (Report). United States Joint Typhoon Warning Center. 9 June 2012. Archived from the original on June 10, 2012. Retrieved 24 September 2023. Alt URL
  6. ^ Special Weather Statement 648 am ChST Mon Jun 11 2012 (Report). Tiyan, Guam: National Weather Service. June 10, 2012. Archived from the original on May 23, 2024. Retrieved September 24, 2023.
  7. ^ RSMC Tropical Cyclone Advisory 110000 (Report). Japan Meteorological Agency. June 11, 2012. Archived from the original on May 23, 2024. Retrieved September 24, 2023.
  8. ^ Prognostic Reasoning for Tropical Depression 05W (Five) Warning No. 1 (Report). United States Joint Typhoon Warning Center. 11 June 2012. Archived from the original on May 23, 2024. Retrieved 25 September 2023.
  9. ^ Prognostic Reasoning for Tropical Depression 05W (Five) Warning No. 3 (Report). United States Joint Typhoon Warning Center. 11 June 2012. Archived from the original on May 23, 2024. Retrieved 25 September 2023.
  10. ^ Prognostic Reasoning for Tropical Storm 05W (Five) Warning No. 5 (Report). United States Joint Typhoon Warning Center. 12 June 2012. Archived from the original on May 23, 2024. Retrieved 25 September 2023.
  11. ^ RSMC Tropical Cyclone Advisory 120600 (Report). Japan Meteorological Agency. June 12, 2012. Archived from the original on May 23, 2024. Retrieved September 25, 2023.
  12. ^ Prognostic Reasoning for Tropical Storm 05W (Guchol) Warning No. 10 (Report). United States Joint Typhoon Warning Center. 13 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  13. ^ RSMC Tropical Cyclone Advisory 140000 (Report). Japan Meteorological Agency. June 14, 2012. Archived from the original on May 23, 2024. Retrieved October 1, 2023.
  14. ^ Tropical Storm "BUTCHOY" Severe Weather Bulletin Number ONE (Report). Philippine Atmospheric, Geophysical and Astronomical Services Administration. June 14, 2012. Archived from the original on May 23, 2024. Retrieved October 1, 2023.
  15. ^ Prognostic Reasoning for Typhoon 05W (Guchol) Warning No. 15 (Report). United States Joint Typhoon Warning Center. 14 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  16. ^ Prognostic Reasoning for Typhoon 05W (Guchol) Warning No. 17 (Report). United States Joint Typhoon Warning Center. 15 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  17. ^ Prognostic Reasoning for Typhoon 05W (Guchol) Warning No. 20 (Report). United States Joint Typhoon Warning Center. 15 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  18. ^ RSMC Tropical Cyclone Advisory 160000 (Report). Japan Meteorological Agency. June 16, 2012. Archived from the original on May 23, 2024. Retrieved October 1, 2023.
  19. ^ Prognostic Reasoning for Typhoon 05W (Guchol) Warning No. 22 (Report). United States Joint Typhoon Warning Center. 16 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  20. ^ a b c "2012 Super Typhoon GUCHOL (2012162N06150)". International Best Track Archive for Climate Stewardship (IBTrACS) Project. Retrieved August 26, 2023.
  21. ^ Prognostic Reasoning for Category 4-Equivalent Super Typhoon 05W (Guchol) Warning No. 24 (Report). United States Joint Typhoon Warning Center. 16 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  22. ^ Prognostic Reasoning for Category 4-Equivalent Super Typhoon 05W (Guchol) Warning No. 25 (Report). United States Joint Typhoon Warning Center. 17 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  23. ^ Prognostic Reasoning for Category 4-Equivalent Super Typhoon 05W (Guchol) Warning No. 27 (Report). United States Joint Typhoon Warning Center. 17 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  24. ^ Prognostic Reasoning for Typhoon 05W (Guchol) Warning No. 30 (Report). United States Joint Typhoon Warning Center. 18 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  25. ^ Typhoon "BUTCHOY" (GUCHOL) Severe Weather Bulletin Number TWELVE (FINAL) (Report). Philippine Atmospheric, Geophysical and Astronomical Services Administration. June 18, 2012. Archived from the original on May 23, 2024. Retrieved October 1, 2023.
  26. ^ Prognostic Reasoning for Typhoon 05W (Guchol) Warning No. 31 (Report). United States Joint Typhoon Warning Center. 18 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  27. ^ Prognostic Reasoning for Typhoon 05W (Guchol) Warning No. 33 (Report). United States Joint Typhoon Warning Center. 19 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  28. ^ Prognostic Reasoning for Tropical Storm 05W (Guchol) Warning No. 34 (Report). United States Joint Typhoon Warning Center. 19 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  29. ^ RSMC Tropical Cyclone Advisory 191200 (Report). Japan Meteorological Agency. June 19, 2012. Archived from the original on May 23, 2024. Retrieved October 1, 2023.
  30. ^ Tropical Storm 05W (Guchol) Warning No. 35 (Report). United States Joint Typhoon Warning Center. 19 June 2012. Archived from the original on May 23, 2024. Retrieved 1 October 2023.
  31. ^ RSMC Tropical Cyclone Advisory 200000 (Report). Japan Meteorological Agency. June 20, 2012. Archived from the original on May 23, 2024. Retrieved October 1, 2023.
  32. ^ "Final Report re Effects of Southwest Monsoon and Typhoon "Butchoy" (Guchol)" (PDF). National Disaster Risk Reduction and Management Council. June 26, 2012. Archived from the original (PDF) on August 23, 2013. Retrieved August 7, 2012.
  33. Yahoo! News. Archived
    from the original on June 23, 2012. Retrieved October 1, 2023.
  34. ^ 平成２４年台風第４号による被害状況等について [Regarding the damage caused by Typhoon No. 4 of 2012] (PDF) (Report) (in Japanese). Cabinet of Japan. August 16, 2012. Retrieved October 1, 2023.
  35. ^ "June 2012 Global Catastrophe Recap" (PDF). AON Benfield. July 2012. Archived from the original (PDF) on August 4, 2012. Retrieved August 7, 2012.
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