Draft:Tropical Storm Haima (2011)

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Tropical Storm Haima (Egay)
Severe Tropical Storm Haima at peak intensity on June 23, 2011.
Meteorological history
FormedJune 16, 2011
DissipatedJune 25, 2011
Tropical storm
10-minute sustained (JMA)
Highest winds75 km/h (45 mph)
Lowest pressure985 hPa (mbar); 29.09 inHg
Tropical storm
1-minute sustained (SSHWS)
Highest winds65 km/h (40 mph)
Lowest pressure985 hPa (mbar); 29.09 inHg
Overall effects
Fatalities18 dead
Damage$207 million
Areas affectedPhilippines, South Central China, Vietnam, Laos

Part of the 2011 Pacific typhoon season

Tropical Storm Haima, known in the Philippines as Severe Tropical Storm Egay, was a weak tropical storm in the 2011 Pacific typhoon season. As the fourth named storm of the season, it originated from a tropical disturbance east of Mindanao on June 13. The disturbance began to interact with another disturbance and the other one absorbed the moisture of the other disturbance. On June 15, the Joint Typhoon Warning Center started to monitor an area of disturbed weather within that disturbance that was located about 1,350 kilometres (840 mi), to the southeast of Manila. Over the next couple of days the system gradually developed further, before late on June 16, the Japan Meteorological Agency, JTWC and PAGASA, all reported that the system had developed into a tropical depression, gaining the designations 06W and Egay. The depression continued to develop during June 17, as it moved towards the northeast, and on June 18, the JTWC reported that Egay had intensified into a tropical storm. The intensity altered over the next several days, before the JMA reported that the system had strengthened into a tropical storm on June 22, designating it as Haima. the JTWC also followed suit, by upgrading it to a tropical storm again.

Meteorological history

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Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
  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
  Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

Two tropical disturbances formed in an area of convection and moderate vertical wind shear east of Mindanao on June 13. Both of them started to interact with each other and the other one absorbed the moisture of the other disturbance. On June 15, the Joint Typhoon Warning Center started to monitor an area of disturbed weather within that disturbance that was located about 1,350 kilometres (840 mi), to the southeast of Manila. Over the next couple of days, the system gradually developed further, before late on June 16, the Japan Meteorological Agency, JTWC and PAGASA, all reported that the system had developed into a tropical depression, gaining the designations 06W and Egay. The depression continued to develop during June 17, as it moved towards the northeast, and on June 18, the JTWC reported that Egay had intensified into a tropical storm. The intensity altered over the next several days, before the JMA reported that the system had strengthened into a tropical storm on June 22, designating it as Haima.[1] The JTWC also followed suit, by upgrading it to a tropical storm again.[2] On the evening of June 23, the JTWC downgraded Haima to a tropical depression after making landfall in Zhanjiang, Guangdong, China,[3] but Haima was upgraded it to a tropical storm again on June 24. Early on June 25, Haima became a tropical depression after moving inland in Vietnam.[4] As it made landfall over Hanoi, Vietnam,[5] the JTWC and the Hong Kong Observatory downgraded Haima to a low-pressure area, before Haima dissipated inland over Laos on the same day.[5]

Preparations and impact

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China

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Haima brought gusty winds and rain to Hainan, causing some passenger ships to stop operating and caused fishing vessels to berth in harbors located in Haikou.[6]

Laos

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Haima caused heavy rain, widespread flooding and erosion to Xiangkhouang, Sainyabuli, Vientiane and Bolikhamsai. Haima also caused severe damage to infrastructure, livelihoods, and assets, killing 30 in the process. Over 64,000 hectares of farmland, 323 roads and 42 bridges were damaged or destroyed. The total monetary value of the damage and losses caused by Haima was estimated to be $66 million. Also, it was estimated that an estimated $70 million in relief efforts would be needed to ensure the recovery from Haima.[7][8][nb 1]

Philippines

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Haima's damage caused to local agriculture is estimated to be more than 5.6 million (2011 USD).[9]

Vietnam

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Haima caused heavy rain in the Northern Vietnam and Central Vietnam, and Haima also killed 16 people. Including 1 in Yên Bái[10], 1 in Thái Bình[4], 7 in Haiphong, and 3 in Nam Định. Haima also left at least 1 person missing.[10] Haima devastated 14,250 hectares (35,200 acres) of rice crop and vegetables.[8]

See also

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References

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  1. ^ VietnamPlus (2011-06-21). "Áp thấp nhiệt đới đã mạnh lên thành bão Haima | Môi trường | Vietnam+ (VietnamPlus)". VietnamPlus (in Vietnamese). Retrieved 2022-12-05.
  2. ^ "Tropical storm Haima hits southern China, forcing ships to stop service". Lu Hui. Archived from the original on June 25, 2011. Retrieved June 22, 2011.
  3. ^ "2011年第4号热带风暴"海马"". typhoon.weather.com.cn. Retrieved 2022-12-04.
  4. ^ a b VnExpress. "Bão Haima suy yếu thành áp thấp nhiệt đới". vnexpress.net (in Vietnamese). Retrieved 2022-12-04.
  5. ^ a b "TROPICAL CYCLONES IN 2011". www.hko.gov.hk. Retrieved 2022-12-05.
  6. ^ "Tropical storm Haima hits S China". www.chinadaily.com.cn. Retrieved 2022-12-05.
  7. ^ "TYPHOON HAIMA IN THE LAO PEOPLE'S DEMOCRATIC REPUBLIC: Joint Damage, Losses and Needs Assessment" (PDF). August 29, 2011.
  8. ^ a b "Tropical Storm Haima - Jun 2011 | ReliefWeb". reliefweb.int. 31 January 2017. Retrieved 2022-12-05.
  9. ^ "DA: P316M in agriculture lost due to 'Egay'". GMA News Online. June 22, 2011. Retrieved 2022-12-05.
  10. ^ a b baohatinh.vn (2011-06-26). "Ít nhất 10 người chết, 14 người mất tích do bão Haima". Báo Hà Tĩnh (in Vietnamese). Retrieved 2022-12-04.

Notes

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  1. ^ All damage totals are in 2011 values of their respective currencies.