Typhoon Mangkhut

A map of the highest Public Storm Warning Signals raised throughout the Philippines in relation to Mangkhut's passage

President Rodrigo Duterte presides over a command conference with the members of his cabinet at the NDRRMC office in Camp Aguinaldo, Quezon City on September 13, 2018.

Tropical cyclone warning signals were hoisted by the Philippine Atmospheric, Geophysical and Astronomical Services Administration as early as September 13. Preemptive and forced evacuations were implemented, especially in the Ilocos, Cagayan Valley and Cordillera administrative regions, the three regions widely expected to be severely affected by Mangkhut (Ompong). School class suspensions were announced as early as September 12 in preparation for the approaching typhoon.[25][26][27][28] Medical and emergency response teams were placed on standby, and ₱1,700,000,000 worth of relief goods were prepared by 13 September.[29]

On September 12, as Mangkhut was forecast to severely threaten Hong Kong, the Hong Kong Government convened an inter-departmental meeting to discuss possible responses to the storm.[30]

On September 14, the Hong Kong Government held a rare cross-department press conference over the preparation for Mangkhut, reminding Hong Kong citizens to "prepare for the worst". That night, the Hong Kong Observatory issued the Standby Signal No. 1 when Mangkhut was 1,110 kilometres (600 nmi) away from Hong Kong, the farthest distance on record.[31]

On September 15, citizens living in Tai O and Lei Yue Mun were evacuated from these low-lying areas that have historically been very prone to storm surge.[32] The Hong Kong Observatory issued the Strong Wind Signal No. 3 in the afternoon.[33]

On September 16, as Mangkhut maintained its course towards the Pearl River Estuary, the Hong Kong Observatory issued the Gale or Storm Signal No. 8 during midnight.[34] After dawn, as local winds rapidly strengthened, Hong Kong Observatory issued the Increasing Gale or Storm Signal No. 9.[35] At 9:40 a.m., the Hong Kong Observatory issued the Hurricane Signal No. 10, the highest level of tropical cyclone warning signals in Hong Kong.[36] This marked only the third time that this warning has been issued for the region since 1999, the others being with Typhoon Hato in 2017 and Typhoon Vicente in 2012.[37] The signal was held for ten hours, the second longest duration ever, only behind the eleven hours during Typhoon York in 1999.[38] The typhoon passed 100 kilometers south of Hong Kong at its closest, the joint farthest for a Hurricane Signal No. 10, with Typhoon Vicente.[39]

On September 15, the meteorological bureaus of most cities in Guangdong issued red alerts for Typhoon Mangkhut, which is the highest level of alerts in Guangdong.[40][41] The Guangxi Meteorological Bureau also issued a red alert for the typhoon at 5:00 p.m. Beijing Time.[42] On the next day, the Meteorological Bureau of Shenzhen Municipality issued a red alert for rainstorm, which is the highest level of alerts in Shenzhen.[43][44]

The Fujian Meteorological Bureau issued an orange alert for the typhoon, the second-highest alert level, on September 15.[45]

On September 16, National Meteorological Center of CMA renewed a red alert for Typhoon Mangkhut, which is the highest level of alerts in China.[46] On the same day, the Hainan Meteorological Bureau issued an orange alert for the typhoon.[47] In Guangdong's provincial capital Guangzhou, schools, public transportation, and businesses were closed across the entire city for the first time since 1978.[48][49]

Sailors remove debris in Guam following Typhoon Mangkhut

After the center of Mangkhut passed near Guam, about 80% of the island lost electricity.[50] The typhoon caused $4.3 million in infrastructural damage in Guam.[51]

Mangkhut making landfall over Luzon on September 14

After sweeping through Luzon, it left a trail of destruction. Almost all buildings in Tuguegarao, Cagayan's provincial capital experienced some sort of damage due to the typhoon.[52] The typhoon blew away roofs, uprooted trees, destroyed buildings, and blocked roads with debris. Shards of glass was blown through the corridors in a hotel in Santa Ana. In Manila, extreme rains caused widespread flooding in urban areas.[53] A tornado was reported in Marikina, eastern Metro Manila, at around 5:30 p.m. Philippine Standard Time on September 14, injuring two people.[54] Over 105,000 families evacuated from their homes,[55] and several airports in northern Luzon closed and airlines cancelled their flights until September 16.[56]

On September 22, police confirmed that the typhoon had caused at least 127 fatalities;[4][5] eighty deaths occurred in the collapse of a small mine in the town of Itogon, Benguet, where dozens of landslides buried homes.[57] Philippine police also stated that another 111 people remained missing, as of September 22.[4]

Francis Tolentino, a political adviser of President Rodrigo Duterte, announced that an estimated 5.7 million people nationwide had been affected by the storm.[67] Luzon suffered extensive losses which more than doubled the expected worst-case scenario outlined by Agriculture Secretary Emmanuel Piñol.

As of October 5, the NDRRMC estimated that Mangkhut caused PHP33.9 billion (US$626.8 million) in damages in the Philippines, with assessments continuing.[68]

The tail winds from Mangkhut also affected some parts of Malaysia (as well as state of Sabah).

A thirty-year-old female teacher visiting Fenniaolin Beach in Yilan County was swept out to sea by a wave. Her body was recovered two days later.[69][70]

Shattered windows at Two Harbourfront in Hung Hom, Hong Kong

Mangkhut was the most intense typhoon to strike Hong Kong since Typhoon Ellen in 1983; the highest typhoon warning signal No. 10 remained in place for ten hours.[2][71] An hourly mean wind of 81 km/h (50 mph) and gusts up to 169 km/h (105 mph) were recorded at the Hong Kong Observatory in Tsim Sha Tsui, while on Cheung Chau island these figures reached 157 (98) and 212 km/h (132 mph) respectively. The strongest winds in Hong Kong near sea level were recorded at the remote Waglan Island, with ten-minute sustained winds of 180 km/h (112 mph) gusting up to 220 km/h (137 mph).[71] These winds caused the territory's many skyscrapers to sway and shattered glass windows; notably, the curtain walls of the Harbour Grand Kowloon were blown out by the winds. A construction elevator shaft on a high-rise under construction in Tai Kok Tsui collapsed onto an adjacent building, which had to be evacuated by police.[72] Many roads were blocked by fallen trees and other debris, including major arteries such as Lockhart Road in Wan Chai and Kam Sheung Road, and service on the Mass Transit Railway (MTR) was halted on all above-ground sections of track.[73][74]

People climb over trees to go to work the morning after Typhoon Mangkhut near Immigration Tower in Wan Chai

Serious flooding was reported in many seaside residential areas, including Heng Fa Chuen, Tseung Kwan O South, Shek O, Lei Yue Mun, villages in Tuen Mun, and the fishing village of Tai O,[75] due to a powerful storm surge of up to 3.38 metres (11.1 ft).[2] About 1,219 people sought refuge in emergency shelters opened by the Home Affairs Department.[76] The Hong Kong International Airport cancelled and delayed a total of 889 international flights. More than 200 people were injured, but no fatalities were reported.[77][78] Due to the substantial damage and disruption caused by the typhoon, the Education Bureau announced that all schools would be closed on September 17 and 18.[73] Insurance claims in Hong Kong amounted to HK$7.3 billion (US$930 million).[79]

The day after the storm, massive crowds filled the territory's MTR system, which operated at a reduced level of service on some lines as some sections of the tracks had been blocked by debris.[80] Most of the city's 600 bus routes also went out of service due to blocked roads.[81]

The ceiling of the Oriental Pearl Terminal Station waiting area was blown away by strong winds.

A storm surge of up to 1.9 metres (6 ft 3 in) affected Macau. About 21,000 homes lost power and 7,000 homes lost internet access,[82] and forty people were injured. For the first time in history, all casinos in Macau were closed.[83] The Macau International Airport cancelled 191 flights on Saturday and Sunday (15 and 16 September).[82] Total damage in Macau was estimated to be 1.74 billion patacas (US$215.3 million).[84]

Typhoon Mangkhut caused the evacuation of over 2.45 million people.[22][23] In Shenzhen, the storm caused power failures in thirteen locations, flooded the Seafood Street, and caused 248 tree falls.[85] Transport was shut down in Southern China,[86][87] and at least four people in Guangdong were killed in the typhoon.[88][89] In Guangzhou, markets, schools and public transport were closed or limited in the wake of the storm on Monday, September 17, and residents were requested to minimize non-essential travel. Ferry services from Zhuhai's Jiuzhougang Port to Shenzhen and Hong Kong were suspended indefinitely. The Civil Air Defense Office of Guangzhou Municipality (Municipal Civil Air Defense Office) cancelled the annual air-raid drills scheduled for September 15 to avoid causing panic as Typhoon Mangkhut approached.[90] Schools in Beihai, Qinzhou, Fangchenggang, and Nanning were closed on September 17.[91][92] The trains to Guangxi were also closed on September 17.[93]

In total, the storm killed six people and caused CN¥13.68 billion (US$1.99 billion) in damage.[94]

After the season, PAGASA retired the name Ompong for causing more than ₱1 billion in damage; in March 2019, PAGASA chose the name Obet to replace Ompong for the 2022 season.

Due to the damage and high death toll in Luzon, the name Mangkhut was officially retired during the 51st annual session of the ESCAP/WMO Typhoon Committee in February 2019. In July 2020, the Typhoon Committee subsequently chose Krathon as its replacement name.[95]