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User:DachshundLover82/sandbox/Typhoon Khanun (2017)

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This page is about the 2017 typhoon. For other storms of the same name, see Typhoon Khanun and Tropical Storm Odette.
Typhoon Khanun (Odette)
Typhoon (JMA scale)
Category 2 typhoon (SSHWS)
Typhoon Khanun around peak intensity nearing Hainan on October 15
FormedOctober 11, 2017
DissipatedOctober 16, 2017
Highest winds10-minute sustained: 140 km/h (85 mph)
1-minute sustained: 165 km/h (105 mph)
Lowest pressure955 hPa (mbar); 28.2 inHg
Fatalities1 total
Damage$373 million (2017 USD)
Areas affectedPhilippines, Taiwan, South China, Vietnam
Part of the 2017 Pacific typhoon season

Meteorological history

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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

Late on October 10, 2017, the Joint Typhoon Warning Center (JTWC) began to monitor an area of low pressure for potential tropical cyclogenesis.[1] At 0:00 UTC the following day, the Japan Meteorological Agency (JMA) designated the system as a tropical depression.[2] However, the JTWC did not follow suit, instead issuing a Tropical Cyclone Formation Alert (TCFA), later that day. Although, the JTWC upgraded the disturbance into a tropical depression, giving it the identifier 24W, at 6:00 UTC on October 12.[1] PAGASA also began to monitor the tropical depression, around this time, naming it Odette.[3] The system began to drift towards the west-northwest, nearing the island of Luzon.[4] Just six hours later, the depression strengthened into a tropical storm, being provided the name Khanun by the JMA.[2] PAGASA upgraded the system into a tropical storm by 14:00 UTC.[5] Roughly three hours later, Khanun made landfall in Santa Ana, Cagayan in the Philippines.[6] As the storm made landfall, the JTWC upgraded it into a tropical storm.[1]

Preparations and impact

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Philippines

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Tropical Depression Odette (24W) approaching the Philippines before being named Khanun on October 12

In advance of Khanun, Signal No. 1 and 2 warnings were issued for large swaths of Luzon and offshore island archipelagos by PAGASA. Signal No. 1 warnings were put in effect for the provinces of Abra, Isabela, Ifugao, and Ilocos Sur Kalinga, Mountain. Meanwhile, Signal No. 2 warnings were placed for Apayao, Batanes, Cagayan, and Ilocos Norte provinces.[5] PAGASA also advised that sea travel during the storm was dangerous.[7] In Cagayan Province, Governor Manuel Mamba cancelled classes for pre-kindergarten through secondary school. While asking people residing along or near mountain slopes and in low-lying areas to evacuate.[8] At total of 10 domestic flights were cancelled due to severe weather.[9]

Khanun brought heavy rainfall to the Philippines as a tropical storm.[10] Flash floods in Allacapan prompted a state of emergency. Roughly 9,680 hectares (23,920 acres) of crops were submerged in floodwaters in the town. Several bridges were covered by flooding across Cagayan Province.[11]

China

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Ahead of the typhoon, orange alerts were posted for the provinces of Guangdong, Guanxi, Hainan, and Zhejiang.[12]

Elsewhere

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Total precipitation amounts in Taiwan partly associated with Khanun between October 11-15

While still a tropical storm, Khanun prompted heavy rain advisories for northern and eastern Taiwan. Strong wind warnings were also put in place for the entire island.[13] This heavy rainfall produced flash flooding and mudslides which resulted in one fatality.[14]

Aftermath

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See also

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References

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  1. ^ a b c "Annual Tropical Cyclone Report 2017" (PDF). Joint Typhoon Warning Center. Retrieved February 13, 2021.
  2. ^ a b "bst2017.txt". Japan Meteorological Agency. Retrieved February 13, 2021.
  3. ^ PAGASA (October 12, 2017). "Severe Weather Bulletin No. 1 Tropical Depression "Odette"" (PDF). NDRRMC. Retrieved February 13, 2021.
  4. ^ "Severe Typhoon Khanun (1720)". Hong Kong Observatory. Retrieved February 13, 2021.
  5. ^ a b PAGASA (October 12, 2017). "Severe Weather Bulletin No. 8" (PDF). NDRRMC. Retrieved February 13, 2021.
  6. ^ PAGASA (October 13, 2017). "Severe Weather Bulletin No. 9 Tropical Storm Odette" (PDF). NDRRMC. Retrieved February 13, 2021.
  7. ^ Frances G. Mangosing (October 13, 2017). "'Odette' continues to bring rains over parts of N. Luzon". Inquirer News. Retrieved February 13, 2021.
  8. ^ Simeon Dilan (October 12, 2017). "Classes in Cagayan province suspended due to 'Odette'". Philippine News Agency. Retrieved February 14, 2021.
  9. ^ Ricardo B. Jalab (October 14, 2017). "SitRep No. 2 re re Preparedness Measures and Effects of "Severe Tropical Storm Odette" (I.N. Khanun) as of 8:00 AM" (PDF). NDRRMC. Retrieved February 14, 2021.
  10. ^ "'Bagyong Odette' PAGASA weather update October 14, 2017". The Summit Express. October 14, 2017. Retrieved February 14, 2021.
  11. ^ "Town in Cagayan under state of calamity due to storm Odette". GMA Network. October 14, 2017. Retrieved February 14, 2021.
  12. ^ Reuters (October 15, 2017). "Typhoon Khanun to hit southern China Monday as Hong Kong eases warning". Yahoo! News. Retrieved February 14, 2021. {{cite web}}: |author= has generic name (help)
  13. ^ Keoni Everington (October 13, 2017). "Tropical Storm Khanun batters Philippines, brings heavy rain to Taiwan". Taiwan News. Retrieved February 13, 2021.
  14. ^ CNA (October 15, 2017). "Heavy rains cause one death, wreak havoc around Taiwan". Focus Taiwan. Retrieved February 14, 2021.
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