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2024 Pacific typhoon season

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2024 Pacific typhoon season
Season summary map
Seasonal boundaries
First system formedMay 22, 2024
Last system dissipatedSeason ongoing
Strongest storm
NameAghon
 • Maximum winds55 km/h (35 mph)
(10-minute sustained)
 • Lowest pressure1004 hPa (mbar)
Seasonal statistics
Total depressions1
Total fatalitiesUnknown
Total damageUnknown
Related articles
Pacific typhoon seasons
2022, 2023, 2024, 2025, 2026

The 2024 Pacific typhoon season is considered to have been the fifth-latest start for a Pacific typhoon season since reliable records began. It is an ongoing event in the annual cycle of tropical cyclone formation in the western Pacific Ocean. The season runs throughout 2024, though most tropical cyclones typically develop between May and October.

The scope of this article is limited to the Pacific Ocean to the north of the equator between 100°E and 180th meridian. Within the northwestern Pacific Ocean, there are two separate agencies that assign names to tropical cyclones which can often result in a cyclone having two names. The Japan Meteorological Agency (JMA)[nb 1] will name a tropical cyclone if it has 10-minute sustained wind speeds of at least 65 km/h (40 mph) anywhere in the basin. The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assigns names to tropical cyclones which move into or form as a tropical depression in the Philippine Area of Responsibility (PAR), located between 135°E and 115°E and between 5°N–25°N, regardless of whether or not a tropical cyclone has already been given a name by the JMA. Tropical depressions that are monitored by the United States' Joint Typhoon Warning Center (JTWC)[nb 2][nb 3] are given a number with a "W" suffix.

Seasonal forecasts

TSR forecasts
Date		 Tropical
storms		 Total
Typhoons		 Intense
TCs		 ACE Ref.
Average (1991–2020) 25.5 16.0 9.3 301 [3]
May 7, 2024 25 15 7 225 [3]
2024 season Forecast
Center		 Tropical
cyclones		 Tropical
storms		 Typhoons Ref.
Actual activity: JMA 1 0 0
Actual activity: JTWC 0 0 0
Actual activity: PAGASA 1 0 0

During the year, several national meteorological services and scientific agencies forecast how many tropical cyclones, tropical storms, and typhoons will form during a season and/or how many tropical cyclones will affect a particular country. These agencies included the Tropical Storm Risk (TSR) Consortium of University College London, PAGASA and Taiwan's Central Weather Bureau.

Tropical Storm Risk (TSR) released their first forecast on May 7, predicting below average activity with 25 named storms, 15 typhoons and 7 intense typhoons. This was primarily due to the dominant El Niño event at time, which was expected to transition into a weak or moderate La Niña by mid-2024.[3]

Seasonal summary

The Pacific typhoon season has no official bounds, which lasted five months without forming any tropical cyclones in the basin until May 22, when a tropical depression named Aghon formed southeast of Palau, marking it as the fifth-latest start of a Pacific typhoon season since 2016.

Systems

Tropical Depression 01W (Aghon)

Template:Infobox weather event/CurrentTemplate:Infobox weather event/live
Tropical Depression 01W (Aghon)
Satellite image of Tropical Depression 01W (Aghon)
Satellite image
 Forecast map for Tropical Depression 01W (Aghon)
Forecast map

On May 21, the Joint Typhoon Warning Center (JTWC) began to monitor an area of atmospheric convection 441 km (274 mi) southeast of Palau, noting that the system was moving northwestward towards an environment favorable for tropical cyclogenesis, characterized by sea surface temperatures of 29–30 °C (84–86 °F), low vertical wind shear, and moderate to strong outflow aloft associated with an upper tropospheric trough west of the system.[4] On the following day, the Japan Meteorological Agency (JMA) labeled the system as a low-pressure area.[5] The JTWC subsequently issued a Tropical Cyclone Formation Alert (TCFA) as the disturbance developed rainbands wrapping from the southwest, with deep convection obscuring the system's consolidated circulation center.[6] At 18:00 UTC, the JMA recognized the system as a tropical depression.[7] Early on May 23, the depression entered the Philippine Area of Responsibility (PAR).[8] However, later that day, the JTWC cancelled their TCFA, since the depression was still weak.[9] Early morning of May 24, PAGASA upgraded the system from a low-pressure area into a depression, assigning it the name Aghon.[10] The JTWC then reissued a TCFA on the system while it was 233 km (145 mi) northeast of Davao City, Philippines.[11] At 18:00 UTC, the JTWC upgraded the system to Tropical Depression 01W based on surface observations from Guiuan.[12] Aghon made landfall over Homonhon Island and subsequently Giporlos, Eastern Samar in the early morning of May 25 (PHT).[13]

On May 23, PAGASA noted that heavy rain was likely across Samar, stating that mudslides were likely.[14]

Current storm information

As of 06:00 UTC May 24, Tropical Depression 01W (Aghon) is located near 9°12′N 128°30′E / 9.2°N 128.5°E / 9.2; 128.5 (Aghon). Maximum 10-minute sustained winds are at 30 knots (55 km/h; 35 mph), with gusts up to 45 knots (85 km/h; 50 mph). The minimum central barometric pressure is 1004 hPa (29.65 inHg), and the system is moving northwest at 8 kn (15 km/h; 9.2 mph).

For the latest official information, see:

Watches and warnings

Template:TyphoonWarningsTable

Storm names

See also: Tropical cyclone naming and History of tropical cyclone naming

Within the basin, both the Japan Meteorological Agency (JMA) and the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assign names to tropical cyclones that develop in the Western Pacific, which can result in a tropical cyclone having two names.[15] The Japan Meteorological Agency's RSMC Tokyo — Typhoon Center assigns international names to tropical cyclones on behalf of the World Meteorological Organization's Typhoon Committee when they have 10-minute sustained winds of 65 km/h (40 mph).[16]

PAGASA names tropical cyclones which are active in their area of responsibility located between 135°E and 115°E and between 5°N and 25°N even if the cyclone has already been named.[15] The names of significant tropical cyclones are retired by both PAGASA and the Typhoon Committee.[16] If the list of names for the Philippine region are exhausted, then names will be taken from an auxiliary list of which the first ten are published each season. Unused names are marked in gray. The names of significant tropical cyclones will be retired by both PAGASA and the Typhoon Committee in the spring of 2025.[16]

International names

Main article: List of retired Pacific typhoon names

A tropical cyclone is named when it has 10-minute sustained winds of 65 km/h (40 mph).[17] The JMA selected the names from a list of 140 names, that had been developed by the 14 members nations and territories of the ESCAP/WMO Typhoon Committee.[18] Retired names, if any, will be announced by the WMO in 2025, though replacement names will be announced in 2026. The next 28 names on the naming list are listed here along with their international numeric designation, if they are used.

  • Ewiniar (unused)
  • Maliksi (unused)
  • Gaemi (unused)
  • Prapiroon (unused)
  • Maria (unused)
  • Son-Tinh (unused)
  • Ampil (unused)
  • Wukong (unused)
  • Jongdari (unused)
  • Shanshan (unused)
  • Yagi (unused)
  • Leepi (unused)
  • Bebinca (unused)
  • Pulasan (unused)
  • Soulik (unused)
  • Cimaron (unused)
  • Jebi (unused)
  • Krathon (unused)
  • Barijat (unused)
  • Trami (unused)
  • Kong-rey (unused)
  • Yinxing (unused)
  • Toraji (unused)
  • Man-yi (unused)
  • Usagi (unused)
  • Pabuk (unused)
  • Wutip (unused)
  • Sepat (unused)

Philippines

Main article: List of retired Philippine typhoon names

This season, PAGASA will use its own naming scheme for storms that are active in their self-defined area of responsibility.[19] During this season, PAGASA is using the following list of names that was last used during 2020 and will be used again in 2028, updated with replacements of retired names, if any.[19] All of the names are the same as in 2020 except Aghon, Querubin, Romina and Upang, which replaced the names Ambo, Quinta, Rolly and Ulysses after they were retired.[19] The name Aghon was used for the first time this year.

  • Aghon (active)
  • Butchoy (unused)
  • Carina (unused)
  • Dindo (unused)
  • Enteng (unused)
  • Ferdie (unused)
  • Gener (unused)
  • Helen (unused)
  • Igme (unused)
  • Julian (unused)
  • Kristine (unused)
  • Leon (unused)
  • Marce (unused)
  • Nika (unused)
  • Ofel (unused)
  • Pepito (unused)
  • Querubin (unused)
  • Romina (unused)
  • Siony (unused)
  • Tonyo (unused)
  • Upang (unused)
  • Vicky (unused)
  • Warren (unused)
  • Yoyong (unused)
  • Zosimo (unused)
Auxiliary list
  • Alakdan (unused)
  • Baldo (unused)
  • Clara (unused)
  • Dencio (unused)
  • Estong (unused)
  • Felipe (unused)
  • Gomer (unused)
  • Heling (unused)
  • Ismael (unused)
  • Julio (unused)

Season effects

This table summarizes all the systems that developed within or moved into the North Pacific Ocean, to the west of the International Date Line during 2024. The tables also provide an overview of a system's intensity, duration, land areas affected, and any deaths or damages associated with the system.

Name Dates Peak intensity Areas affected Damage
(USD) 		Deaths Refs
Category Wind speed Pressure
01W (Aghon) May 22–Present Tropical depression 55 km/h (35 mph) 1004 hPa (29.65 inHg) None None None
Season aggregates
1 system May 22 – Season ongoing 55 km/h (35 mph) 1004 hPa (29.65 inHg) None None

See also

Notes

  1. ^ The Japan Meteorological Agency is the official Regional Specialized Meteorological Center for the western Pacific Ocean.
  2. ^ The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force that issues tropical cyclone warnings for the western Pacific Ocean and other regions.[1]
  3. ^ A super typhoon is an unofficial category used by the Joint Typhoon Warning Center (JTWC) for a typhoon with winds of at least 240 km/h (150 mph).[2]

References

  1. ^ "Joint Typhoon Warning Center Mission Statement". Joint Typhoon Warning Center. 2011. Archived from the original on July 26, 2007. Retrieved July 25, 2012.
  2. ^ Frequently Asked Questions (Report). Joint Typhoon Warning Center. August 13, 2012. Archived from the original on October 4, 2013. Retrieved September 22, 2012.
  3. ^ a b c Lea, Adam; Wood, Nick (May 7, 2023). Extended Range Forecast for Northwest Pacific Typhoon Activity in 2024 (PDF) (Report). Tropical Storm Risk Consortium. Archived (PDF) from the original on May 6, 2023. Retrieved May 7, 2023.
  4. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans, 06Z 21 May 2024 (Report). United States Joint Typhoon Warning Center. May 21, 2024. Archived from the original on May 21, 2024. Retrieved May 21, 2024.
  5. ^ Warning and Summary 220000 (Report). Tokyo, Japan: Japan Meteorological Agency. May 22, 2024. Archived from the original on May 22, 2024. Retrieved May 22, 2024.
  6. ^ Tropical Cyclone Formation Alert (Invest 93W) (Report). United States Joint Typhoon Warning Center. May 22, 2024. Archived from the original on May 22, 2024. Retrieved May 22, 2024.
  7. ^ Warning and Summary 221800 (Report). Tokyo, Japan: Japan Meteorological Agency. May 22, 2024. Archived from the original on May 22, 2024. Retrieved May 22, 2024.
  8. ^ "Tropical Cyclone Advisory #1 for Low Pressure Area" (PDF). PAGASA. May 23, 2024. Archived from the original (PDF) on May 24, 2024. Retrieved May 23, 2024.
  9. ^ Tropical Cyclone Formation Alert (Invest 93W) Cancellation (Report). United States Joint Typhoon Warning Center. May 23, 2024. Archived from the original on May 23, 2024. Retrieved May 23, 2024.
  10. ^ "LPA develops into Tropical Depression east of Surigao del Sur". GMA Network. Retrieved May 24, 2024.
  11. ^ Tropical Cyclone Formation Alert (Invest 93W) (Report). United States Joint Typhoon Warning Center. May 24, 2024. Archived from the original on May 24, 2024. Retrieved May 24, 2024.
  12. ^ Prognostic Reasoning for Tropical Disturbance 01W (One) Warning No. 1 (Report). United States Joint Typhoon Warning Center. May 24, 2024. Archived from the original on May 24, 2024. Retrieved May 24, 2024.
  13. ^ "Tropical Cyclone Bulletin #7 for Tropical Depression 'Aghon' (Aghon)" (PDF). PAGASA. May 24, 2024. Archived from the original (PDF) on May 24, 2024. Retrieved May 24, 2024.
  14. ^ Mondoñedo-Ynot, Laureen (May 23, 2024). "LPA enters PAR, may develop into tropical depression on May 24". SunStar Publishing Inc. Retrieved May 23, 2024.
  15. ^ a b Padgett, Gary. "Monthly Tropical Cyclone Summary December 1999". Australian Severe Weather. Archived from the original on February 11, 2012. Retrieved October 1, 2013.
  16. ^ a b c The Typhoon Committee (February 21, 2013). "Typhoon Committee Operational Manual 2013" (PDF). World Meteorological Organization. pp. 37–38. Archived (PDF) from the original on August 1, 2013. Retrieved October 1, 2013.
  17. ^ ESCAP/WMO Typhoon Committee (January 25, 2016). "Review of the 2015 Pacific typhoon season" (PDF). www.typhooncommittee.org. Archived (PDF) from the original on March 24, 2016. Retrieved April 8, 2022.
  18. ^ Zhou, Xiao; Lei, Xiaotu (2012). "Summary of retired typhoons within the Western North Pacific Ocean". Tropical Cyclone Research and Review. 1 (1). The Economic and Social Commission for Asia and the Pacific/World Meteorological Organization's Typhoon Committee: 23–32. doi:10.6057/2012TCRR01.03. ISSN 2589-3025. Archived from the original on August 12, 2017. Retrieved December 21, 2014.
  19. ^ a b c "Philippine Tropical Cyclone Names". Philippine Atmospheric, Geophysical and Astronomical Services Administration. Archived from the original on December 28, 2016. Retrieved April 18, 2015.
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