Typhoon Melor (2009)

This article is about the 2009 typhoon. For other storms of the same name, see List of storms named Melor.

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

Tropical cyclone

Subtropical cyclone

Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

Early on September 27, the Joint Typhoon Warning Center (JTWC) reported that an area of deep convection had persisted about 500 mi (310 km) south of the Kwajalein Atoll and was starting to consolidate around a poorly defined low level circulation center. ^[1] During the next day, the system gradually developed, as satellite imagery showed a low-level circulation center had begun to form. On the evening of that day, due to a tropical upper tropospheric trough (TUTT) that was providing good outflow for the system and low level vertical wind shear with a favorable environment, JTWC released a Tropical Cyclone Formation Alert, noting that fragmented banding was now wrapping into the western side of the low level circulation center. Early on September 29, the Japan Meteorological Agency (JMA) upgraded the system to a tropical depression. The JTWC followed suit later that day, assigning the designation of 20W to the system, despite it having a poorly defined low level circulation center. ^[2] Later that day, the depression's convection had improved and was now wrapping into the southern side of the low level circulation center. As a result, both the JTWC and the JMA upgraded the tropical depression to a tropical storm, with the JMA naming it as Melor. An anticyclone to the northeast of the system and an eastward outflow channel into a tropical upper tropospheric trough were providing good outflow for Melor.

Early on October 1, intensification continued, and the JMA reported that Melor became a typhoon. By the afternoon of the same day, the JTWC followed suit and upgraded Melor into a typhoon. In just four hours, it intensified rapidly to a Category 3-equivalent typhoon, and continued to track towards northeast Luzon. Early on October 2, it strengthened to a Category 4-equivalent typhoon. After leveling out in intensity, it strengthened again on October 3. Early October 4, the JTWC reported that Melor had intensified to a Category-5 equivalent super typhoon, with JMA reporting a central pressure of 910 hPa and winds of 205 km/h. On October 5, PAGASA allocated the name Quedan to the typhoon as the storm moved into Philippine's area of responsibility. It interacted with Typhoon Parma in Parma's second landfall in the Philippines. By the midday of October 8, Melor made landfall on Japan. ^{[3] [4]} After landfall, JMA downgraded Melor into a severe tropical storm, while the JTWC downgraded it into an extratropical storm. Late on October 11, the extratropical remnants of Melor were completely absorbed by a newly formed extratropical storm to the north, near Alaska. The new extratropical storm then strengthened into a powerful storm, which then began to impact the west coast of the United States, late on October 13.

Preparations

Late on September 30, the island of Guam, was placed under a tropical storm warning, while the islands of Rota, Tinian and Saipan were placed under a typhoon watch. ^[5] These warnings stayed in force until late on October 1, when the islands of Tinian and Saipan were placed under a typhoon warning. The warnings for the islands of Rota, Agrihan and Guam were also revised at this time with Rota and Agrihan placed under typhoon watches and tropical storm warnings, while Guam was placed under a tropical storm warning. ^[6] Late the next day the warnings were once again revised with the tropical storm warning for Guam and while the typhoon watch was cancelled for both Rota and Agrihan, with Agrihan placed under a typhoon warning. ^[7] Rotas remaining tropical storm warning was then cancelled early on October 3, before all of the warnings were cancelled later that day as Melor moved away from the Mariana Islands. ^{[8] [9]}

Japan

The Japan Meteorological Agency forecast that Typhoon Melor would make landfall near Tokyo on October 8 (Thursday). Weather forecasters issued warnings about strong winds and high waves on the sea. Melor moved with wind speeds of 252 kilometers per hour (156 mph) and bore down on the island of Minami Daito. Typhoon Melor, which was located at 512 km (318 mi) from the southeast of Naha in Okinawa on October 6 at 12 p.m. Japan time, was predicted to be on a path for Tokyo. The Japan Meteorological Agency forecast that the typhoon would have a speed of 180 kilometers per hour (112 mph) near its center. An official at the agency warned residents that the typhoon could bring very strong winds and high sea waves. ^[10]

Impact and aftermath

Mariana Islands

Typhoon Melor near the Mariana Islands on October 3

Although a very powerful typhoon during its passage of the Mariana Islands, Melor produced little damage in the region. The main effects were minor flooded from heavy rainfall in Saipan. High winds also downed a few power lines and trees; however, no structural damage was reported. ^[11] Roughly 2.5 in (64 mm) of rain fell on the island during the passage of Melor, including 2 in (51 mm) during a six-hour span. ^[12] At the height of the storm, roughly 500 residences were without power on Tinian and Saipan; this was quickly reduced to 90 residences within several hours. ^[13]

Japan

Typhoon Melor approaching Japan on October 7

As a weakened typhoon, Melor made landfall in Japan on October 7 with wind gusts over 155 km/h (100 mph), causing massive power outages. At the height of the storm, an estimated 500,000 residences, mainly around Tokyo, were without power. Trains were canceled during the storm as they were unable to travel in conditions produced by the storm. More than 2 million people, attempting to get to work, were stranded as transportation halted. ^[14] According to the Fire and Disaster Management Agency, two people were killed during the storm and at least 100 other were injured throughout the country in various incidents. ^[15] The first death occurred after a man on a motorcycle crashed into a downed tree and the other occurred after a man was struck by a broken tree limb. ^[16] Roughly 400 homes were damaged or destroyed by Melor and monetary damages amounted to 130 billion yen ($1.5 billion USD). ^[15]

Another 64 people were injured, according to local media reports, after Melor reached landfall in Japan's Aichi prefecture early Thursday morning.^{[ citation needed ]}

Typhoon Melor landed south-west of Tokyo on the main island of Honshū on Thursday, October 8, causing at least two deaths and cutting electricity to thousands. Flights were also canceled and people evacuated amid flood and landslide warnings.^{[ citation needed ]}

Still, initial damage reports suggested the typhoon, while powerful, did not cause the type of widespread devastation initially warned. Meteorologists had been warning that the storm could be the most powerful to hit Japan in more than a decade. Melor was the first typhoon to reach landfall in Japan in two years.^{[ citation needed ]}

The storm was expected to drift off the country's eastern coast into the Pacific Ocean by Thursday evening. An official at Japan's meteorological agency said the storm weakened as it moved along the eastern coast, preventing heavier damage.^{[ citation needed ]}

The typhoon brought wind speeds of about 160 kilometers per hour while dumping 30 centimeters of rain in some regions, according to Japan Meteorological Agency.^{[ citation needed ]}

One 54-year-old man was killed while delivering newspapers when his bike hit a fallen tree in the early morning, while a 69-year-old man died in Saitama prefecture near Tokyo after a tree fell on him, according to local police officials.^{[ citation needed ]}

Many factories in the manufacturing-rich prefectures in central Japan were also shut from the storm. ^{[17] [18]}

California

The extratropical cyclone impacting California, after absorbing Melor's remnants.

Main article: October 2009 North American storm complex

On October 14, 2009, the extratropical cyclone that had absorbed Melor's remnants impacted California, and broke several rainfall records. ^[19] Local California media had reported that the remnant of Typhoon Melor was able to kick up winds to as high as 70 mph (110 km/h). Some trees and power lines were downed as a result of this storm. Melor's remnants produced up to 10 inches (25 cm) of rain in California's Santa Cruz Mountains.^{[ citation needed ]}

See also

• Tropical cyclones portal

• Weather of 2009
• Tropical cyclones in 2009
• Typhoon Meari (2004)
• Typhoon Ma-on (2004)
• Typhoon Wipha (2013)
• Typhoon Vongfong (2014)
• Typhoon Choi-wan (2009)

References

1. "Significant Tropical Weather Outlook for the Western and South Pacific Oceans 2009-09-27". Joint Typhoon Warning Center. 2009-09-27. Archived from the original on May 3, 2009. Retrieved 2009-10-03.
2. "Tropical Cyclone Formation Alert 2009-09-28 23z". Joint Typhoon Warning Center. 2009-09-28. Archived from the original on September 28, 2009. Retrieved 2009-10-08.
3. "台風第18号による暴風・大雨". www.data.jma.go.jp (in Japanese). 気象庁 . Retrieved 2022-11-11.
4. "2009年 台風18号 (自然災害の映像記録)" (in Japanese). NHK . Retrieved 2022-11-11.
5. Dan Mundell (2009-09-30). "Tropical Storm Melor (20W) Advisory Number 6 2009-09-30 16z". National Weather Service Forecast Office in Tiyan Guam. Archived from the original on 2024-05-23. Retrieved 2009-11-19.
6. Dan Mundell & Derek Williams (2009-10-01). "Tropical Storm Melor (20W) Advisory Number 11 2009-10-01 22z". National Weather Service Forecast Office in Tiyan Guam. Archived from the original on May 27, 2010. Retrieved 2009-11-19.
7. Carl Mcelroy & Derek Williams (2009-10-02). "Tropical Storm Melor (20W) Advisory Number 15 2009-10-02 22z". National Weather Service Forecast Office in Tiyan Guam. Archived from the original on 2024-05-23. Retrieved 2009-11-19.
8. Paul Stanko (2009-10-03). "Tropical Storm Melor (20W) Advisory Number 17 2009-10-03 10z". National Weather Service Forecast Office in Tiyan Guam. Archived from the original on 2024-05-23. Retrieved 2009-11-19.
9. Clint Simpson (2009-10-03). "Tropical Storm Melor (20W) Advisory Number 19 2009-10-03 22z". National Weather Service Forecast Office in Tiyan Guam. Archived from the original on 2024-05-23. Retrieved 2009-11-19.
10. "Typhoon Melor Japan Archived 2009-10-09 at the Wayback Machine "
11. Laura Matthews (2009-10-05). "Typhoon Melor spares Marianas". Pacific Daily News: Guam. Archived from the original on October 17, 2009. Retrieved 2009-10-17.
12. "Typhoon Melor begins move from Northern Marianas". Associated Press. 2009-10-03. Archived from the original on October 10, 2009. Retrieved 2009-10-17.
13. Moneth Deposa (2009-10-05). "90 homes still without power due to typhoon". Saipan Tribune. Archived from the original on 2024-05-23. Retrieved 2009-10-17.
14. "Typhoon cuts power, disrupts travel in Japan". NBC News. Associated Press. 2009-10-08. Retrieved 2009-10-17.
15. Aaron Sheldrick (2009-10-09). "Japan Recovers From Typhoon Melor as New Storm Forms (Update1)". Bloomberg News.
16. "Two killed as typhoon wreaks havoc on Japan". The Star. Associated Press. 2009-10-08. Archived from the original on October 11, 2009. Retrieved 2009-10-27.
17. Daisuke Wakabayashi (October 9, 2009). "Typhoon Melor Hits Japan, Halts Trains, Suspends Flights". The Wall Street Journal. Retrieved January 30, 2014.
18. "Typhoon lashes Japan on landfall". BBC News. October 8, 2009. Retrieved January 30, 2014.
19. "List of California hurricanes"

External links

• JMA General Information of Typhoon Melor (0918) from Digital Typhoon
• JMA Best Track Data of Typhoon Melor (0918) (in Japanese)
• JTWC Best Track Data Archived 2016-03-04 at the Wayback Machine of Super Typhoon 20W (Melor)
• 20W.MELOR ^{[ permanent dead link ]} from the U.S. Naval Research Laboratory

Typhoon Melor (Quedan)

Melor prior to peak intensity on October 4

v t e Tropical cyclones of the 2009 Pacific typhoon season
	TD Auring TD Bising TD Crising VSTY Kujira TD TD TY Chan-hom STS Linfa TS Nangka TS Soudelor TD Huaning TY Molave TS Goni TY Morakot TS Etau TD Maka VSTY Vamco TD TD TD TD STS Krovanh TD 02C STS Dujuan TD TD TS Mujigae TY Koppu VITY Choi-wan TD TD TY Ketsana TD 18W VSTY Parma VITY Melor TS Nepartak VSTY Lupit TD TD TY Mirinae TD Tino TD 25W TD Urduja VITY Nida TD TD TD 28W TD TD
Category