Typhoon Prapiroon (2018) Explained

Typhoon Prapiroon (Florita)
Formed:June 28, 2018
Extratropical:July 4, 2018
Dissipated:July 5, 2018
Winds:65
Pressure:960
Winds:80
Pressure:960
Basin:Wpac
Year:2018
Fatalities:4
Damages:10100000
Areas:Japan, Korean Peninsula
Season:2018 Pacific typhoon season

Typhoon Prapiroon (Thai: พระพิรุณ), known in the Philippines as Severe Tropical Storm Florita, was a Category 1 typhoon that worsened the floods in Japan and also caused impacts in neighboring South Korea. The storm formed from an area of low pressure near the Philippines and strengthened to a typhoon before entering the Sea of Japan. The seventh named storm and the first typhoon of the annual annual typhoon season. Prapiroon originated from a low-pressure area far off the coast of Northern Luzon on June 28. Tracking westwards, it rapidly upgraded into a tropical storm, receiving the name Prapiroon due to favorable conditions in the Philippine Sea on the next day.

Prapiroon had a good upper-level flow despite the presence of dry air, which typically hindered its development. The tropical storm shifted more northwestward heading towards the Ryukyu Islands. JMA upgraded into a severe tropical storm on July 1 and left PAR on that day also. As it moves towards Japan, Prapiroon crosses through the island of Kume in the Ryukyu Islands. Prapiroon later further intensified as a category-1 typhoon. Shortly after reaching peak intensity, Prapiroon weakened into a tropical storm after passing closely between Japan and the Korean Peninsula. It then turned extratropical on July 5 before dissipating on the following day.

Meteorological history

On June 27 at 20:00 UTC, the Joint Typhoon Warning Center (JTWC) began monitoring a system in the Philippine Sea, giving it a low development potential.[1] The next day at 00:00 UTC, the Japan Meteorological Agency (JMA) began issuing advisories on a tropical depression,[2] with the JTWC upgrading its development potential to medium at 00:30 UTC.[1] The depression continued over favorable conditions as it was steered by a mid-level subtropical high-pressure area,[3] and on the same day at 12:00 UTC, the JTWC began issuing warnings on Tropical Depression 09W.[1] At 18:00 UTC, the PAGASA began issuing warnings on the tropical depression,[4] giving it the local name Florita 3 hours later at 21:00 UTC.[5]

On June 29 at 00:00 UTC, the JMA upgraded the depression to a tropical storm, giving it the name Prapiroon. Prapiroon had good upper-level outflow, though dry air present in the area negatively affected its development.[6] At 03:00 UTC the same day, the JTWC upgraded Prapiroon to a tropical storm as it was located approximately 440nmi south-southeast of Kadena Air Base.[7] Prapiroon then turned to the northwest,[8] and on July 1 at 00:00 UTC, the JMA upgraded Prapiroon to a severe tropical storm.[9] On the same day at 06:00 UTC, the PAGASA issued its final warning on Prapiroon as it exited the Philippine Area of Responsibility.[10] Later that day, a ragged eye became apparent,[11] and at 21:00 UTC, the JTWC upgraded Prapiroon to a typhoon.[12] Prapiroon continued developing aided by favorable conditions, and on July 2 at 00:00 UTC, the JMA upgraded Prapiroon to a typhoon.[13] At 18:00 UTC the same day, both the JMA and the JTWC assessed that Prapiroon had peaked in intensity, with 10-min winds of 65kn, 1-min winds of 80kn, and a minimum central pressure of 960hPa.[14] [15] After peaking, Prapiroon began to weaken and turn to the northeast, with the JMA downgrading it to a severe tropical storm on July 3 at 06:00 UTC as conditions for development became unfavorable.[16] The JTWC downgraded Prapiroon to a tropical storm at 15:00 UTC as its low-level circulation became exposed, with central convection becoming elongated.[17] Prapiroon's western semicircle became completely devoid of deep convection,[18] and by July 4 at 00:00 UTC, the JMA further downgraded it to a tropical storm.[19] The JMA later issued its final advisory on Prapiroon at 06:00 UTC as it became extratropical,[20] [14] with the JTWC doing so later at 15:00 UTC.[21] Prapiroon's extratropical remnants dissipated just south of Hokkaido the next day.[14]

Impact

Japan

See also: 2018 Japan floods. Five people were injured by the winds from the typhoon.[22] A woman was blown away by the strong winds of the typhoon and died at a hospital she was sent to later.[23] The typhoon also caused damages on Old Gorin Church, which as designated as heritage site four days prior, and caused damages to the stained glass in Kuroshima Catholic Church.[24] Agricultural damage in Okinawa Prefecture were about ¥49.39 million (US$446,000).[25]

South Korea

1 person from South Korea was killed by the storm; one other person was declared missing.[26]

See also

Notes and References

  1. 2018 Annual Tropical Cyclone Report . Joint Typhoon Warning Center . Pearl Harbor, Hawaii . 2021-03-30.
  2. Web site: June 28, 2018 . WWJP25 RJTD 280000 . dead . https://web.archive.org/web/20180621000050/http://tgftp.nws.noaa.gov/data/raw/ww/wwjp25.rjtd..txt . 2018-06-21 . 2021-03-30 . tgftp.nws.noaa.gov.
  3. Web site: June 28, 2018 . RSMC Tropical Cyclone Prognostic Reasoning NO. 1 for TD Located at 19.8N 131.4E . dead . https://web.archive.org/web/20180712183717/http://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt . 2018-07-12 . 2021-03-30 . tgftp.nws.noaa.gov.
  4. Web site: June 28, 2018 . TTT WARNING 01 . dead . https://web.archive.org/web/20181113010108/http://tgftp.nws.noaa.gov/data/raw/wt/wtph20.rpmm..txt . 2018-11-13 . 2021-03-30 . tgftp.nws.noaa.gov.
  5. Web site: June 29, 2018 . Severe Weather Bulletin #1 For: Tropical Depression . dead . https://www.webcitation.org/70Xb4w9Ji?url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB1.pdf . 2018-06-29 . 2021-03-30 . pubfiles.pagasa.dost.gov.ph.
  6. Web site: June 29, 2018 . RSMC Tropical Cyclone Prognostic Reasoning NO. 3 for TS 1807 Prapiroon (1807) . dead . https://web.archive.org/web/20180712183717/http://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt . 2018-07-12 . 2021-04-02 . tgftp.nws.noaa.gov.
  7. Web site: June 29, 2018 . Prognostic Reasoning for Tropical Storm 09W (Prapiroon) Warning NR 03 . dead . https://web.archive.org/web/20180613015047/http://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt . 2018-06-13 . 2021-04-02 . tgftp.nws.noaa.gov.
  8. Web site: June 29, 2018 . Prognostic Reasoning for Tropical Storm 09W (Prapiroon) Warning NR 05 . dead . https://web.archive.org/web/20180613015047/http://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt . 2018-06-13 . 2021-04-02 . tgftp.nws.noaa.gov.
  9. Web site: July 1, 2018 . WTPQ20 RJTD 010000 RSMC TROPICAL CYCLONE ADVISORY . dead . https://web.archive.org/web/20180613040655/http://tgftp.nws.noaa.gov/data/raw/wt/wtpq20.rjtd..txt . 2018-06-13 . 2021-04-02 . tgftp.nws.noaa.gov.
  10. Web site: July 1, 2018 . TTT STORM WARNING 11-FINAL . dead . https://web.archive.org/web/20181113010108/http://tgftp.nws.noaa.gov/data/raw/wt/wtph20.rpmm..txt . 2018-11-13 . 2021-04-03 . tgftp.nws.noaa.gov.
  11. Web site: July 1, 2018. Prognostic Reasoning for Tropical Storm 09W (Prapiroon) Warning NR 13. dead. https://web.archive.org/web/20180613015047/http://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt. 2018-06-13. 2021-04-03. tgftp.nws.noaa.gov.
  12. Web site: July 1, 2018. Prognostic Reasoning for Typhoon 09W (Prapiroon) Warning NR 14. dead. https://web.archive.org/web/20180613015047/http://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt. 2018-06-13. 2021-04-03. tgftp.nws.noaa.gov.
  13. Web site: July 2, 2018. RSMC Tropical Cyclone Prognostic Reasoning NO. 15 for TY 1807 Prapiroon (1807). dead. https://web.archive.org/web/20180712183717/http://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt. 2018-07-12. 2021-04-03. tgftp.nws.noaa.gov.
  14. Annual Report on the Activities of the RSMC Tokyo - Typhoon Center 2018 . 2019 . Japan Meteorological Agency . 95 . 2021-04-03.
  15. Web site: Western North Pacific Ocean Best Track Data . 2021-04-03 . metoc.navy.mil.
  16. Web site: July 3, 2018. RSMC Tropical Cyclone Prognostic Reasoning NO. 20 for STS 1807 Prapiroon (1807). dead. https://web.archive.org/web/20180712183717/http://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt. 2018-07-12. 2021-04-03. tgftp.nws.noaa.gov.
  17. Web site: July 3, 2018. Prognostic Reasoning for Tropical Storm 09W (Prapiroon) Warning NR 21. dead. https://web.archive.org/web/20180613015047/http://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt. 2018-06-13. 2021-04-03. /tgftp.nws.noaa.gov.
  18. Web site: July 3, 2018. Prognostic Reasoning for Tropical Storm 09W (Prapiroon) Warning NR 22. dead. https://web.archive.org/web/20180613015047/http://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt. 2018-06-13. 2021-04-03. /tgftp.nws.noaa.gov.
  19. Web site: July 4, 2018. RSMC Tropical Cyclone Prognostic Reasoning NO. 23 for STS 1807 Prapiroon (1807). dead. https://web.archive.org/web/20180712183717/http://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt. 2018-07-12. 2021-04-03. tgftp.nws.noaa.gov.
  20. Web site: July 4, 2018 . WTPQ20 RJTD 040600 RSMC TROPICAL CYCLONE ADVISORY . dead . https://web.archive.org/web/20180613040655/http://tgftp.nws.noaa.gov/data/raw/wt/wtpq20.rjtd..txt . 2018-06-13 . 2021-04-03 . tgftp.nws.noaa.gov.
  21. Web site: July 4, 2018 . Tropical Storm 09W (Prapiroon) Warning NR 025 . dead . https://web.archive.org/web/20180613014745/http://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt . 2018-06-13 . 2021-04-03 . tgftp.nws.noaa.go.
  22. Web site: 台風7号 被害報告、県の災害警戒本部会議. 琉球新報. 2018-07-05. 2018-07-09.
  23. Web site: 台風7号 農作業中の89歳女性転落死 強風にあおられ？. 毎日新聞. 2018-07-05. 2018-07-05.
  24. News: 台風７号：長崎の「潜伏キリシタン」世界文化遺産で被害 . . . 2018-07-05 . 2018-07-07.
  25. 平成３０年台風第７号に係る被害状況等について（第７報）最終報. ja. 沖縄総合事務局. July 4, 2018. July 5, 2018.
  26. Web site: 1 dead, 1 missing as Typhoon Prapiroon approaches Korea. July 2, 2018. Koreaherald. July 5, 2018. July 18, 2018. https://web.archive.org/web/20180718001436/http://www.koreaherald.com/view.php?ud=20180702000720. live.

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