Tropical Storm Dujuan (2021) Explained

Tropical Storm Dujuan (Auring)
Formed:February 16, 2021
Dissipated:February 23, 2021
Winds:40
Pressure:996
Winds:45
Pressure:991
Year:2021
Fatalities:1
Missing:4
Damage:3290000
Areas:Palau, Philippines
Season:2021 Pacific typhoon season

Tropical Storm Dujuan, known in the Philippines as Severe Tropical Storm Auring, was a tropical storm which caused heavy rain in the Philippines and Palau, leading to minor damage. Dujuan was the second depression and first named storm of the 2021 Pacific typhoon season. Dujuan started as a tropical depression in the Philippine Sea which slowly tracked northwestward towards the Philippines. Its strength fluctuated from February 19 to 21 due to an unfavorable environment near the storm at the time. The system was declared a tropical storm prior to its landfall in Batag Island, Laoang, Northern Samar on February 22.

Dujuan caused no casualties in Palau. In the Philippines, however, the storm caused 1 death and left 4 missing. The storm also caused a fishing vessel to capsize, leaving 15 Filipino fisherman adrift for six days before being rescued. Floodwater inundated houses in Surigao del Sur, submerging Tandag City along with 3,168 hectares of cropland. Total damages in the Philippines amounted to at least $3.29 million (2021 USD).

Meteorological history

On February 16 at 06:00 UTC, the Japan Meteorological Agency (JMA) reported that a tropical depression had developed over the Philippine Sea.[1] Eight hours later, the JTWC issued a Tropical Cyclone Formation Alert (TCFA) on the system, while it was located roughly 15miles to the east of Babeldaob, Palau. The depression displayed convective banding features, wrapping into a disorganized low-level center of circulation. Within an area favorable for further development, with low to moderate vertical wind shear, strong poleward outflow, and 29C30C sea surface temperatures, the system began to intensify.[2] By 3:00 UTC on February 17, the depression had entered the Philippine Area of Responsibility (PAR), and was given the name Auring by the PAGASA. This made Dujuan the first named storm within the PAR in 2021.[3] Three hours later, the JTWC upgraded the system to a tropical depression, giving it the designation 01W.[4] As the system tracked to the west-northwest, it continued to strengthen until the early hours of February 18, when it was upgraded to a tropical storm by the JMA, JTWC, and the PAGASA,[5] [6] with the JMA giving it the name Dujuan.

At 03:00 UTC on February 19, the PAGASA briefly upgraded Dujuan into a severe tropical storm, before downgrading it back.[7] [8] The next day, vertical wind shear in Dujuan's environment had decreased, allowing the storm to slightly re-strengthen.[9] The vertical wind shear associated with the northeast monsoon still persisted, affecting the system,[10] and on February 21, the JMA downgraded Dujuan to a tropical depression. The JTWC and the PAGASA followed on the next day as the system's low-level circulation center (LLCC) had weakened prior to landfall.[11] The JMA and the JTWC issued their final advisories moments after.[12] [13] The storm made landfall over Batag Island in Laoang, Northern Samar at 09:00 PHT (01:00 UTC) on the same day.[14] Prior to crossing the Rapu-Rapu Islands in Albay, the PAGASA declared the storm as a low-pressure area and issued their final bulletin on the storm.[15] Dujuan dissipated on February 23 at 06:00 UTC.

Preparations and impact

Dujuan briefly moved over Palau on February 16 as a tropical depression, bringing heavy rainfall to parts of the country.[16] [17] On February 18, the boat of 15 Filipino fishermen capsized off the coast of Surigao, leaving the group adrift for six days until they were rescued by the Philippine Coast Guard.[18] [19]

In anticipation of the storm, the PAGASA issued Signal #1 warnings for the eastern section of Mindanao on February 19, with the same warnings issued on the eastern provinces of Visayas.[20] [21] [22] Signal 2 warnings were also issued in the majority of Eastern Samar, Samar, Southern Leyte, Dinagat Islands, and Surigao del Norte on February 21 as Dujuan re-intensified hours before landfall.[23] The warnings were quickly lowered, however, just a few hours after being issued.[24] Despite the lowered warnings, the storm was able to cause flooding in parts of Visayas. Before the storm's landfall, in Tandag City, Surigao del Sur, heavy rains had already caused houses to be submerged in floodwater.[25] Classes and government work was suspended on February 22 in Romblon, Tacloban City, and Negros Oriental and in parts of Leyte, Cebu, Davao de Oro, and Surigao del Sur.[26] [27]

A total of 280,881 individuals were affected in Northern Mindanao, Caraga, and in the Davao Region. At least 183,226 of the affected individuals were taken to 950 various evacuation shelters in each region. 2,408 houses were damaged, with 444 houses becoming totally damaged. Most of the damage occurred in the Caraga Administrative Region.[28] 42 domestic flights and multiple sea trips were also cancelled due to the harsh weather.[29] An analysis by the STAMINA4Space Program revealed that over 3,412 hectares of land had been inundated due to floods from Dujuan, with 92% (3,168 ha) of the land being cropland. The cropland only contained sparse vegetation at the time, however.[30] In the Philippines, one person was reported dead with four others reported missing.[31] Agricultural damages stood at while infrastructural damages stood at, for a total of .[32] Aon estimates that total losses in the Philippines reached at least $10 million (2021 USD).[33]

See also

External links

Notes and References

  1. Web site: May 20, 2021 . RSMC Tropical Cyclone Best Track Name 2101 Dujuan (2101) . https://archive.today/20210528073248/https://tgftp.nws.noaa.gov/data/raw/ax/axpq20.rjtd..txt . May 28, 2021 . March 27, 2022 . . the National Oceanic and Atmospheric Administration.
  2. Web site: February 16, 2021 . Tropical Cyclone Formation Alert (Invest 91W) . https://archive.today/20210216212851/https://www.metoc.navy.mil/jtwc/products/wp9121web.txt . February 16, 2021 . February 16, 2021 . Joint Typhoon Warning Center.
  3. 2021-02-17. Auring. swb. 1. TD. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf. live. 2021-04-22. https://web.archive.org/web/20210422083915/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf. Alt URL
  4. Web site: bwp012021.dat . March 27, 2022 . . National Oceanic and Atmospheric Administration.
  5. February 18, 2021. warn. TS. 01W. 4. One. https://www.metoc.navy.mil/jtwc/products/wp0121web.txt. live. 2021-02-18. https://web.archive.org/web/20210218094742/http://www.metoc.navy.mil/jtwc/products/wp0121web.txt. Alt URL
  6. 2021-02-18. Auring. swb. 3. TS. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf. live. 2021-04-22. https://web.archive.org/web/20210422083915/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf. Alt URL
  7. 2021-02-19. Auring. Dujuan. swb. 6. STS. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%236_auring.pdf. Alt URL
  8. 2021-02-19. Auring. Dujuan. swb. 7. TS. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf. live. 2021-04-22. https://web.archive.org/web/20210422083915/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf. Alt URL
  9. February 21, 2021. prog. TS. 01W. 17. Dujuan. https://www.metoc.navy.mil/jtwc/products/wp0121prog.txt. live. 2021-02-18. https://web.archive.org/web/20210218094748/https://www.metoc.navy.mil/jtwc/products/wp0121prog.txt. Alt URL
  10. News: February 21, 2021 . 'Bagyong Auring' PAGASA weather update February 21, 2021 . The Summit Express . live . April 8, 2021 . https://web.archive.org/web/20210422083915/https://www.thesummitexpress.com/2021/02/bagyong-auring-pagasa-weather-update-february-21-2021.html . April 22, 2021.
  11. 2021-02-21. Auring. Dujuan. swb. 19. TD. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%2319_auring.pdf. Alt URL
  12. Web site: February 22, 2021 . Tropical Cyclone Information . dead . https://archive.today/20210222005526/https://www.jma.go.jp/en/typh/2101.html . February 22, 2021 . February 22, 2021 . Japan Meteorological Agency.
  13. 2021-02-22. warn. TD. 01W. 20. Dujuan. https://www.metoc.navy.mil/jtwc/products/wp0121warn.txt. Alt URL
  14. February 22, 2021. Auring. swb. 23. TD. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%2323_auring.pdf. Dujuan. Alt URL
  15. 2021-02-22. Auring. Dujuan. swb. 24. LPA. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%2324%28Final%29_auring.pdf. Alt URL
  16. Web site: WEATHER ROUNDUP FOR THE MARIANAS AND MICRONESIA. National Weather Service Tiyan GU. February 16, 2021. February 16, 2021. https://archive.today/20210216212124/https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ&product=RWR&format=CI&version=30&glossary=0. February 16, 2021.
  17. Web site: Tropical Cyclone Formation Alert Graphic. Joint Typhoon Warning Center. February 16, 2021. February 16, 2021. https://archive.today/20210216212610/https://www.metoc.navy.mil/jtwc/products/wp9121.gif. February 16, 2021.
  18. Web site: Gubalani . Richelyn . February 26, 2021 . Fishing vessel rescues 15 Surigao fishers off Palau . live . https://web.archive.org/web/20210227035149/https://www.pna.gov.ph/articles/1131908 . February 27, 2021 . February 27, 2021 . Philippine News Agency . en.
  19. Web site: Ramos . Christia Marie . February 26, 2021 . 15 fishers of boat that capsized during Auring's onslaught rescued . live . https://web.archive.org/web/20210226053801/https://newsinfo.inquirer.net/1400367/15-fishers-of-boat-that-capsized-during-aurings-onslaught-rescued . February 26, 2021 . February 27, 2021 . INQUIRER.net . en.
  20. 2021-02-19. Auring. Dujuan. swb. 5. TS. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%235_auring.pdf. Alt URL
  21. Web site: February 19, 2021 . Storm Signal No. 1 up in four Mindanao areas as Auring remains stationary over Philippine Sea . dead . https://web.archive.org/web/20210218215452/https://cnnphilippines.com/news/2021/2/19/tropical-storm-auring-weather-updates.html . February 18, 2021 . February 19, 2021 . CNN Philippines . en.
  22. 2021-02-19. Auring. Dujuan. swb. 7. TS. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%237_auring.pdf. Alt URL
  23. 2021-02-21. Auring. Dujuan. swb. 18. TS. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%2318_auring.pdf. Alt URL
  24. 2021-02-21. Auring. Dujuan. swb. 19. TS. https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%2319_auring.pdf. Alt URL
  25. Web site: February 21, 2021 . IN PHOTOS: Surigao del Sur flooded due to Tropical Storm Auring . live . https://web.archive.org/web/20210221123753/https://www.rappler.com/moveph/photos-surigao-del-sur-floods-tropical-storm-auring-february-2021 . February 21, 2021 . February 21, 2022 . Rappler . en.
  26. Web site: February 22, 2021 . Walang Pasok: Class, work suspensions on February 22 due to 'Auring' . live . https://web.archive.org/web/20210222005712/https://www.philstar.com/headlines/2021/02/22/2079584/walang-pasok-class-work-suspensions-february-22-due-auring . February 22, 2021 . February 22, 2021 . Philstar.com.
  27. Web site: February 22, 2021 . Sitrep No. 04 re Preparedness Measures and Effects of Severe Tropical Storm "AURING" . live . https://web.archive.org/web/20210223011006/https://ndrrmc.gov.ph/attachments/article/4144/SitRep_No_04_TC_AURING_2021_Update.pdf . February 23, 2021 . February 23, 2021 . National Disaster Risk Reduction and Management Council.
  28. DSWD DROMIC Terminal Report on Severe Tropical Storm "AURING". Rafanan. Marie Joyce G.. April 19, 2021. Department of Social Welfare and Development Disaster Response Operations Monitoring and Information Center. July 10, 2021. July 10, 2021. https://web.archive.org/web/20210710101625/https://dromic.dswd.gov.ph/tropical-depression-auring-17-feb-2021/. live.
  29. Web site: February 22, 2021 . Sitrep No. 05 re Preparedness Measures and Effects of Severe Tropical Storm "AURING" . live . https://web.archive.org/web/20210223144851/https://ndrrmc.gov.ph/attachments/article/4144/SitRep_No_5_TC_Auring_2021_Update.pdf . February 23, 2021 . February 23, 2021 . National Disaster Risk Reduction and Management Council.
  30. Web site: February 26, 2021 . STS Auring affects Surigao del Sur farmers, satellite images show . live . https://web.archive.org/web/20210227065427/https://stamina4space.upd.edu.ph/2021/02/26/sts-auring-affects-surigao-del-sur-farmers-satellite-images-show/ . February 27, 2021 . February 27, 2021 . STAMINA4Space . en.
  31. Web site: February 23, 2021 . Auring leaves 1 dead, 2 missing in Caraga . dead . https://web.archive.org/web/20210223035929/https://cnnphilippines.com/regional/2021/2/23/Auring-dead-missing-NDRRMC.html . February 23, 2021 . February 23, 2021 . CNN Philippines . en.
  32. Web site: February 27, 2021 . SitRep no.09 re Preparedness Measures and Effects for STS Auring . live . https://web.archive.org/web/20210413144901/https://ndrrmc.gov.ph/attachments/article/4144/SitRep_No_9_TC_Auring_2021_Update.pdf . April 13, 2021 . February 27, 2021 . NDRRMC . en.
  33. Web site: Global Catastrophe Recap February 2021. AON. March 12, 2021. March 18, 2021. https://web.archive.org/web/20210318034603/http://thoughtleadership.aon.com/documents/20210310_analytics-if-february-global-recap.pdf. live.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tropical Storm Dujuan (2021)".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.