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==Meteorological history==
==Meteorological history==
{{Storm path|Ampil_2024_path.png|colors=new}}
{{Storm path|Ampil_2024_path.png|colors=new}}{{Update|section|date=August 2024}}
On August 3, the JTWC began tracking an area of convection {{Convert|527|NM|mi km|abbr=out}} east of [[Kadena Air Base]].<ref>{{Cite JTWC|date=2024-08-03|type=abpw|designation=91W|time=06Z|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://archive.is/pBwbA|reissued=0|archive-date=2024-08-03}}</ref> At 18:00&nbsp;UTC the same day, the JMA designated the system as a low-pressure area.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 031800 |date=August 3, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 3, 2024 |archive-url=https://archive.is/IW63G |archive-date=August 3, 2024}}</ref> However, just six hours later, they upgraded the system as a tropical depression.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 040000 |date=August 4, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 4, 2024 |archive-url=https://archive.is/yUXbI |archive-date=August 4, 2024}}</ref> On August 7, the depression weakened and was last noted by the JMA.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 071800 |date=August 10, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 7, 2024 |archive-url=https://archive.is/2024.08.08-085703/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20240807/180000/A_WWJP27RJTD071800_C_RJTD_20240807203044_8.txt |archive-date=August 7, 2024}}</ref> The disturbance later meandered south of the [[Ryukyu Islands]] for a few days before it was re-designated by the JMA as a tropical depression on August 11.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 110600 |date=August 11, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 11, 2024 |archive-url=https://archive.ph/06UU8 |archive-date=August 11, 2024}}</ref> Soon after, the JTWC began to re-monitoring it, noting that it was in a marginal favorable environment for development.<ref>{{Cite JTWC|date=2024-08-11|type=abpw|designation=91W|time=1930Z|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://archive.is/FWI2l|reissued=1|archive-date=2024-08-11}}</ref> At 07:00&nbsp;UTC on August 12, the agency issued a TCFA on the disturbance.<ref>{{cite JTWC|date=August 12, 2024|type=tcfa|designation=91W|time=07Z|url=https://www.metoc.navy.mil/jtwc/products/wp9124web.txt|archive-url=https://archive.is/2024.08.12-083759/https://www.metoc.navy.mil/jtwc/products/wp9124web.txt|archive-date=August 12, 2024|access-date=August 12, 2024}}</ref> A few hours later, they recognized the system as a tropical depression, designating it as ''08W''. Soon after, the JMA noted that it had intensified into a tropical storm, naming it ''Ampil''. Ampil gradually intensified in the Pacific Ocean, becoming a severe tropical storm later on.
On August 3, the JTWC began tracking an area of convection {{Convert|527|NM|mi km|abbr=out}} east of [[Kadena Air Base]].<ref>{{Cite JTWC|date=2024-08-03|type=abpw|designation=91W|time=06Z|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://archive.is/pBwbA|reissued=0|archive-date=2024-08-03}}</ref> At 18:00&nbsp;UTC the same day, the JMA designated the system as a low-pressure area.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 031800 |date=August 3, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 3, 2024 |archive-url=https://archive.is/IW63G |archive-date=August 3, 2024}}</ref> However, just six hours later, they upgraded the system as a tropical depression.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 040000 |date=August 4, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 4, 2024 |archive-url=https://archive.is/yUXbI |archive-date=August 4, 2024}}</ref> On August 7, the depression weakened and was last noted by the JMA.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 071800 |date=August 10, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 7, 2024 |archive-url=https://archive.is/2024.08.08-085703/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20240807/180000/A_WWJP27RJTD071800_C_RJTD_20240807203044_8.txt |archive-date=August 7, 2024}}</ref> The disturbance later meandered south of the [[Ryukyu Islands]] for a few days before it was re-designated by the JMA as a tropical depression on August 11.<ref>{{cite report |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |title=Warning and Summary 110600 |date=August 11, 2024 |publisher=Japan Meteorological Agency |location=Tokyo, Japan |access-date=August 11, 2024 |archive-url=https://archive.ph/06UU8 |archive-date=August 11, 2024}}</ref> Soon after, the JTWC began to re-monitoring it, noting that it was in a marginal favorable environment for development.<ref>{{Cite JTWC|date=2024-08-11|type=abpw|designation=91W|time=1930Z|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://archive.is/FWI2l|reissued=1|archive-date=2024-08-11}}</ref> At 07:00&nbsp;UTC on August 12, the agency issued a TCFA on the disturbance.<ref>{{cite JTWC|date=August 12, 2024|type=tcfa|designation=91W|time=07Z|url=https://www.metoc.navy.mil/jtwc/products/wp9124web.txt|archive-url=https://archive.is/2024.08.12-083759/https://www.metoc.navy.mil/jtwc/products/wp9124web.txt|archive-date=August 12, 2024|access-date=August 12, 2024}}</ref> A few hours later, they recognized the system as a tropical depression, designating it as ''08W''. Soon after, the JMA noted that it had intensified into a tropical storm, naming it ''Ampil''. Ampil gradually intensified in the Pacific Ocean, becoming a severe tropical storm later on.


Revision as of 08:10, 17 August 2024

This article is about the 2024 typhoon. For other storms of the same name, see List of storms named Ampil.
Typhoon Ampil
Ampil near Japan on August 16
Meteorological history
FormedAugust 3, 2024
DissipatedPresent
Very strong typhoon
10-minute sustained (JMA)
Highest winds155 km/h (100 mph)
Lowest pressure950 hPa (mbar); 28.05 inHg
Category 4-equivalent typhoon
1-minute sustained (SSHWS/JTWC)
Highest winds215 km/h (130 mph)
Lowest pressure947 hPa (mbar); 27.96 inHg
Overall effects
Areas affectedBonin Islands, Japan
IBTrACSEdit this at Wikidata
Part of the 2024 Pacific typhoon season

Typhoon Ampil is an active tropical cyclone that threatened the Kantō region of Japan.

Meteorological history

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

On August 3, the JTWC began tracking an area of convection 527 nautical miles (606 mi; 976 km) east of Kadena Air Base.[1] At 18:00 UTC the same day, the JMA designated the system as a low-pressure area.[2] However, just six hours later, they upgraded the system as a tropical depression.[3] On August 7, the depression weakened and was last noted by the JMA.[4] The disturbance later meandered south of the Ryukyu Islands for a few days before it was re-designated by the JMA as a tropical depression on August 11.[5] Soon after, the JTWC began to re-monitoring it, noting that it was in a marginal favorable environment for development.[6] At 07:00 UTC on August 12, the agency issued a TCFA on the disturbance.[7] A few hours later, they recognized the system as a tropical depression, designating it as 08W. Soon after, the JMA noted that it had intensified into a tropical storm, naming it Ampil. Ampil gradually intensified in the Pacific Ocean, becoming a severe tropical storm later on.

Preparations and impact

The slow-moving typhoon, the season's seventh, could also cause suspensions or delays on major train routes, including the busy JR Yamanote loop line in central Tokyo, according to railway operators.

With the approaching typhoon, the Japan Meteorological Agency warned of potential landslides, overflowing rivers, flooding in low-lying areas, strong winds and high waves.[8]

With Tropical Storm Ampil approaching at Japan, JR East announced on Wednesday that the Tohoku, Joetsu, Hokuriku, Yamagata and Akita Shinkansen lines may be temporarily suspended on August 16 and 17. Central Japan Railway warned of similar disruptions on the Tokaido Shinkansen Line. The storm — which is expected to strengthen to a typhoon as it reaches Eastern Japan — may also have a significant impact on local train lines and expressways in the Kanto region. Flights to and from Haneda and Narita airports could be canceled as well. Operators are urging travelers to regularly check the latest information or consider changing their of plans.  Japan grounded hundreds of flights and advised nearly 10,000 households to evacuate in some areas near Tokyo on Friday, as Typhoon Ampil brought heavy rain and strong winds to the region.

See also

References

  1. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans, 06Z 3 August 2024 Reissued (Report). United States Joint Typhoon Warning Center. August 3, 2024. Archived from the original on August 3, 2024. Retrieved August 3, 2024.
  2. ^ Warning and Summary 031800 (Report). Tokyo, Japan: Japan Meteorological Agency. August 3, 2024. Archived from the original on August 3, 2024. Retrieved August 3, 2024.
  3. ^ Warning and Summary 040000 (Report). Tokyo, Japan: Japan Meteorological Agency. August 4, 2024. Archived from the original on August 4, 2024. Retrieved August 4, 2024.
  4. ^ Warning and Summary 071800 (Report). Tokyo, Japan: Japan Meteorological Agency. August 10, 2024. Archived from the original on August 7, 2024. Retrieved August 7, 2024.
  5. ^ Warning and Summary 110600 (Report). Tokyo, Japan: Japan Meteorological Agency. August 11, 2024. Archived from the original on August 11, 2024. Retrieved August 11, 2024.
  6. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans, 1930Z 11 August 2024 Reissued (Report). United States Joint Typhoon Warning Center. August 11, 2024. Archived from the original on August 11, 2024. Retrieved August 11, 2024.
  7. ^ Tropical Cyclone Formation Alert (Invest 91W) (Report). United States Joint Typhoon Warning Center. August 12, 2024. Archived from the original on August 12, 2024. Retrieved August 12, 2024.
  8. ^ NEWS, KYODO. "Typhoon may hit eastern Japan, including Tokyo, disrupting transport". Kyodo News+. Retrieved August 14, 2024.
Wikimedia Commons has media related to Typhoon Ampil (2024).

General Information of Typhoon Ampil (2407) from Digital Typhoon

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