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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Chanthu: 2021 Western North Pacific

Chanthu reached 153 kt (283 km/h, 176 mph) (C5) in the 2021 Western North Pacific season, from 2021-09-05 to 2021-09-20, with track, wind and pressure and 28.7 ACE.

Data as of . Last revised (2026-10-17).

Key Facts

  • Chanthu was a category 5 at its peak in the 2021 Western North Pacific season.
  • Peak maximum sustained wind was 153 kt (283 km/h, 176 mph), reached on 10 September 2021, and the lowest pressure was 905 hPa.
  • The track runs from 5 September 2021 to 20 September 2021 with 119 six hourly positions.
  • Chanthu accumulated 28.7 ACE.
  • 1 landfall is recorded, the first on 17 September 2021.

Track

5 September 2021 to 20 September 2021
Track of Chanthu 2021, coloured by intensity Chanthu formed on 5 September 2021 and its track is coloured by category at each six hourly step, peaking as a category 5. Landfall 2021-09-17
Chanthu formed on 5 September 2021 and its track is coloured by category at each six hourly step, peaking as a category 5. Made with Natural Earth and IBTrACS. Ringed points mark landfalls or the latest advisory position.
Track of Chanthu 2021, coloured by intensity: tracks drawn on the map
StormFirst position (lat, lon)Last position (lat, lon)Track points
Chanthu12.4, 140.531.8, 140.7119

Wind

Knots, six hourly
Maximum sustained wind of Chanthu Maximum sustained wind in knots every six hours, from n/a at the start to a peak of 153 kt (283 km/h, 176 mph). 0 50 100 150 200 09-0509-0709-0909-1009-1209-1409-1609-18
Maximum sustained wind in knots every six hours, from n/a at the start to a peak of 153 kt (283 km/h, 176 mph).
Maximum sustained wind of Chanthu
Time (UTC)Wind (kt)
2021-09-05T06:00:00Zn/a
2021-09-05T09:00:00Zn/a
2021-09-05T12:00:00Zn/a
2021-09-05T15:00:00Zn/a
2021-09-05T18:00:00Z20 kt
2021-09-05T21:00:00Z23 kt
2021-09-06T00:00:00Z25 kt
2021-09-06T03:00:00Z28 kt
2021-09-06T06:00:00Z30 kt
2021-09-06T09:00:00Z33 kt
2021-09-06T12:00:00Z35 kt
2021-09-06T15:00:00Z40 kt
2021-09-06T18:00:00Z35 kt
2021-09-06T21:00:00Z48 kt
2021-09-07T00:00:00Z45 kt
2021-09-07T03:00:00Z58 kt
2021-09-07T06:00:00Z55 kt
2021-09-07T09:00:00Z80 kt
2021-09-07T12:00:00Z65 kt
2021-09-07T15:00:00Z110 kt
2021-09-07T18:00:00Z80 kt
2021-09-07T21:00:00Z128 kt
2021-09-08T00:00:00Z90 kt
2021-09-08T03:00:00Z135 kt
2021-09-08T06:00:00Z95 kt
2021-09-08T09:00:00Z135 kt
2021-09-08T12:00:00Z95 kt
2021-09-08T15:00:00Z133 kt
2021-09-08T18:00:00Z100 kt
2021-09-08T21:00:00Z138 kt
2021-09-09T00:00:00Z100 kt
2021-09-09T03:00:00Z135 kt
2021-09-09T06:00:00Z100 kt
2021-09-09T09:00:00Z125 kt
2021-09-09T12:00:00Z100 kt
2021-09-09T15:00:00Z123 kt
2021-09-09T18:00:00Z100 kt
2021-09-09T21:00:00Z130 kt
2021-09-10T00:00:00Z105 kt
2021-09-10T03:00:00Z140 kt
2021-09-10T06:00:00Z115 kt
2021-09-10T09:00:00Z148 kt
2021-09-10T12:00:00Z115 kt
2021-09-10T15:00:00Z153 kt
2021-09-10T18:00:00Z115 kt
2021-09-10T21:00:00Z150 kt
2021-09-11T00:00:00Z115 kt
2021-09-11T03:00:00Z138 kt
2021-09-11T06:00:00Z110 kt
2021-09-11T09:00:00Z120 kt
2021-09-11T12:00:00Z105 kt
2021-09-11T15:00:00Z110 kt
2021-09-11T18:00:00Z100 kt
2021-09-11T21:00:00Z100 kt
2021-09-12T00:00:00Z100 kt
2021-09-12T03:00:00Z95 kt
2021-09-12T06:00:00Z90 kt
2021-09-12T09:00:00Z85 kt
2021-09-12T12:00:00Z80 kt
2021-09-12T15:00:00Z93 kt
2021-09-12T18:00:00Z85 kt
2021-09-12T21:00:00Z88 kt
2021-09-13T00:00:00Z85 kt
2021-09-13T03:00:00Z80 kt
2021-09-13T06:00:00Z80 kt
2021-09-13T09:00:00Z70 kt
2021-09-13T12:00:00Z75 kt
2021-09-13T15:00:00Z60 kt
2021-09-13T18:00:00Z70 kt
2021-09-13T21:00:00Z48 kt
2021-09-14T00:00:00Z65 kt
2021-09-14T03:00:00Z40 kt
2021-09-14T06:00:00Z55 kt
2021-09-14T09:00:00Z38 kt
2021-09-14T12:00:00Z50 kt
2021-09-14T15:00:00Z35 kt
2021-09-14T18:00:00Z45 kt
2021-09-14T21:00:00Z38 kt
2021-09-15T00:00:00Z45 kt
2021-09-15T03:00:00Z43 kt
2021-09-15T06:00:00Z45 kt
2021-09-15T09:00:00Z45 kt
2021-09-15T12:00:00Z45 kt
2021-09-15T15:00:00Z48 kt
2021-09-15T18:00:00Z50 kt
2021-09-15T21:00:00Z53 kt
2021-09-16T00:00:00Z50 kt
2021-09-16T03:00:00Z55 kt
2021-09-16T06:00:00Z50 kt
2021-09-16T09:00:00Z53 kt
2021-09-16T12:00:00Z50 kt
2021-09-16T15:00:00Z50 kt
2021-09-16T18:00:00Z50 kt
2021-09-16T21:00:00Z50 kt
2021-09-17T00:00:00Z50 kt
2021-09-17T03:00:00Z50 kt
2021-09-17T06:00:00Z50 kt
2021-09-17T09:00:00Z50 kt
2021-09-17T12:00:00Z45 kt
2021-09-17T15:00:00Z45 kt
2021-09-17T18:00:00Z45 kt
2021-09-17T21:00:00Z40 kt
2021-09-18T00:00:00Z35 kt
2021-09-18T03:00:00Z35 kt
2021-09-18T06:00:00Z25 kt
2021-09-18T09:00:00Z15 kt
2021-09-18T12:00:00Zn/a
2021-09-18T15:00:00Zn/a
2021-09-18T18:00:00Zn/a
2021-09-18T21:00:00Zn/a
2021-09-19T00:00:00Zn/a
2021-09-19T03:00:00Zn/a
2021-09-19T06:00:00Zn/a
2021-09-19T09:00:00Zn/a
2021-09-19T12:00:00Zn/a
2021-09-19T15:00:00Zn/a
2021-09-19T18:00:00Zn/a
2021-09-19T21:00:00Zn/a
2021-09-20T00:00:00Zn/a

Pressure

hPa, six hourly
Central pressure of Chanthu Central pressure in hectopascals every six hours, falling to 905 hPa at the lowest. 900 975 1050 1125 1200 09-0509-0709-0909-1009-1209-1409-1609-18
Central pressure in hectopascals every six hours, falling to 905 hPa at the lowest.
Central pressure of Chanthu
Time (UTC)Pressure (hPa)
2021-09-05T06:00:00Z1006 hPa
2021-09-05T09:00:00Zn/a
2021-09-05T12:00:00Z1008 hPa
2021-09-05T15:00:00Zn/a
2021-09-05T18:00:00Z1006 hPa
2021-09-05T21:00:00Z1005 hPa
2021-09-06T00:00:00Z1006 hPa
2021-09-06T03:00:00Z1003 hPa
2021-09-06T06:00:00Z1004 hPa
2021-09-06T09:00:00Z1000 hPa
2021-09-06T12:00:00Z1002 hPa
2021-09-06T15:00:00Z998 hPa
2021-09-06T18:00:00Z1000 hPa
2021-09-06T21:00:00Z996 hPa
2021-09-07T00:00:00Z994 hPa
2021-09-07T03:00:00Z990 hPa
2021-09-07T06:00:00Z990 hPa
2021-09-07T09:00:00Z976 hPa
2021-09-07T12:00:00Z980 hPa
2021-09-07T15:00:00Z952 hPa
2021-09-07T18:00:00Z960 hPa
2021-09-07T21:00:00Z935 hPa
2021-09-08T00:00:00Z950 hPa
2021-09-08T03:00:00Z927 hPa
2021-09-08T06:00:00Z940 hPa
2021-09-08T09:00:00Z929 hPa
2021-09-08T12:00:00Z940 hPa
2021-09-08T15:00:00Z932 hPa
2021-09-08T18:00:00Z935 hPa
2021-09-08T21:00:00Z927 hPa
2021-09-09T00:00:00Z935 hPa
2021-09-09T03:00:00Z928 hPa
2021-09-09T06:00:00Z935 hPa
2021-09-09T09:00:00Z937 hPa
2021-09-09T12:00:00Z935 hPa
2021-09-09T15:00:00Z939 hPa
2021-09-09T18:00:00Z935 hPa
2021-09-09T21:00:00Z932 hPa
2021-09-10T00:00:00Z930 hPa
2021-09-10T03:00:00Z922 hPa
2021-09-10T06:00:00Z910 hPa
2021-09-10T09:00:00Z914 hPa
2021-09-10T12:00:00Z910 hPa
2021-09-10T15:00:00Z907 hPa
2021-09-10T18:00:00Z905 hPa
2021-09-10T21:00:00Z909 hPa
2021-09-11T00:00:00Z905 hPa
2021-09-11T03:00:00Z920 hPa
2021-09-11T06:00:00Z910 hPa
2021-09-11T09:00:00Z935 hPa
2021-09-11T12:00:00Z920 hPa
2021-09-11T15:00:00Z945 hPa
2021-09-11T18:00:00Z935 hPa
2021-09-11T21:00:00Z935 hPa
2021-09-12T00:00:00Z935 hPa
2021-09-12T03:00:00Z940 hPa
2021-09-12T06:00:00Z950 hPa
2021-09-12T09:00:00Z955 hPa
2021-09-12T12:00:00Z960 hPa
2021-09-12T15:00:00Z951 hPa
2021-09-12T18:00:00Z955 hPa
2021-09-12T21:00:00Z956 hPa
2021-09-13T00:00:00Z955 hPa
2021-09-13T03:00:00Z964 hPa
2021-09-13T06:00:00Z960 hPa
2021-09-13T09:00:00Z972 hPa
2021-09-13T12:00:00Z970 hPa
2021-09-13T15:00:00Z978 hPa
2021-09-13T18:00:00Z975 hPa
2021-09-13T21:00:00Z985 hPa
2021-09-14T00:00:00Z980 hPa
2021-09-14T03:00:00Z991 hPa
2021-09-14T06:00:00Z985 hPa
2021-09-14T09:00:00Z993 hPa
2021-09-14T12:00:00Z990 hPa
2021-09-14T15:00:00Z995 hPa
2021-09-14T18:00:00Z992 hPa
2021-09-14T21:00:00Z995 hPa
2021-09-15T00:00:00Z992 hPa
2021-09-15T03:00:00Z993 hPa
2021-09-15T06:00:00Z992 hPa
2021-09-15T09:00:00Z991 hPa
2021-09-15T12:00:00Z992 hPa
2021-09-15T15:00:00Z989 hPa
2021-09-15T18:00:00Z990 hPa
2021-09-15T21:00:00Z985 hPa
2021-09-16T00:00:00Z990 hPa
2021-09-16T03:00:00Z983 hPa
2021-09-16T06:00:00Z990 hPa
2021-09-16T09:00:00Z985 hPa
2021-09-16T12:00:00Z990 hPa
2021-09-16T15:00:00Z990 hPa
2021-09-16T18:00:00Z990 hPa
2021-09-16T21:00:00Z990 hPa
2021-09-17T00:00:00Z990 hPa
2021-09-17T03:00:00Z990 hPa
2021-09-17T06:00:00Z990 hPa
2021-09-17T09:00:00Z990 hPa
2021-09-17T12:00:00Z992 hPa
2021-09-17T15:00:00Z994 hPa
2021-09-17T18:00:00Z994 hPa
2021-09-17T21:00:00Z996 hPa
2021-09-18T00:00:00Z1000 hPa
2021-09-18T03:00:00Z1000 hPa
2021-09-18T06:00:00Z1002 hPa
2021-09-18T09:00:00Z1005 hPa
2021-09-18T12:00:00Z1004 hPa
2021-09-18T15:00:00Zn/a
2021-09-18T18:00:00Z1006 hPa
2021-09-18T21:00:00Zn/a
2021-09-19T00:00:00Z1008 hPa
2021-09-19T03:00:00Zn/a
2021-09-19T06:00:00Z1008 hPa
2021-09-19T09:00:00Zn/a
2021-09-19T12:00:00Z1010 hPa
2021-09-19T15:00:00Zn/a
2021-09-19T18:00:00Z1010 hPa
2021-09-19T21:00:00Zn/a
2021-09-20T00:00:00Z1010 hPa

ACE Compared With the 2021 Season

Accumulated cyclone energy of named storms in 2021
Sam (North Atlantic)54.0 ACE
Habana (South-West Indian)34.2 ACE
Larry (North Atlantic)31.9 ACE
Surigae (Western North Pacific)28.7 ACE
Chanthu (this storm)28.7 ACE
Linda (Eastern North Pacific)25.4 ACE
Faraji (South-West Indian)22.1 ACE
Mindulle (Western North Pacific)21.9 ACE
Felicia (Eastern North Pacific)21.4 ACE
Yasa (South Pacific)19.8 ACE
Rai (Western North Pacific)18.9 ACE
In-Fa (Western North Pacific)14.9 ACE
Marian (South-West Indian)14.2 ACE
Niran (South Pacific)14.1 ACE
Ida (North Atlantic)10.6 ACE
Elsa (North Atlantic)9.9 ACE
Grace (North Atlantic)8.6 ACE
Hilda (Eastern North Pacific)8.3 ACE
Nyatoh (Western North Pacific)8.0 ACE
Henri (North Atlantic)7.8 ACE
Enrique (Eastern North Pacific)7.7 ACE
Tauktae (North Indian)7.7 ACE
Rick (Eastern North Pacific)6.7 ACE
Malou (Western North Pacific)6.6 ACE
Eloise (South-West Indian)6.2 ACE
Seroja (South-West Indian)6.1 ACE
Wanda (North Atlantic)5.7 ACE
Conson (Western North Pacific)5.4 ACE
Kompasu (Western North Pacific)5.3 ACE
Champi (Western North Pacific)5.0 ACE
Gulab:Shaheen-Gu (North Indian)4.9 ACE
Namtheun (Western North Pacific)4.8 ACE
Nora (Eastern North Pacific)4.6 ACE
Ana (South Pacific)4.4 ACE
Guambe (South-West Indian)4.3 ACE
Pamela (Eastern North Pacific)4.2 ACE
Odette (South-West Indian)3.9 ACE
Olaf (Eastern North Pacific)3.7 ACE
Chalane (South-West Indian)3.7 ACE
Alicia (South-West Indian)3.6 ACE
Yaas (North Indian)3.6 ACE
Danilo (South-West Indian)3.6 ACE
Cempaka (Western North Pacific)3.4 ACE
Mirinae (Western North Pacific)3.4 ACE
Bongoyo (South-West Indian)3.4 ACE
Kevin (Eastern North Pacific)3.2 ACE
Choi-Wan (Western North Pacific)3.2 ACE
Jobo (South-West Indian)3.2 ACE
Lucas (South Pacific)3.2 ACE
Nida (Western North Pacific)3.2 ACE
Lupit (Western North Pacific)3.0 ACE
Omais (Eastern North Pacific)2.9 ACE
Victor (North Atlantic)2.5 ACE
Fred (North Atlantic)2.4 ACE
Nicholas (North Atlantic)2.4 ACE
Zazu (South Pacific)2.2 ACE
Dujuan (Western North Pacific)2.0 ACE
Joshua (South-West Indian)1.9 ACE
Peter (North Atlantic)1.8 ACE
Blanca (Eastern North Pacific)1.7 ACE
Kimi (South Pacific)1.6 ACE
Guillermo (Eastern North Pacific)1.6 ACE
Rose (North Atlantic)1.4 ACE
Dolores (Eastern North Pacific)1.4 ACE
Carlos (Eastern North Pacific)1.3 ACE
Lionrock (Western North Pacific)1.2 ACE
Iman (South-West Indian)1.1 ACE
Claudette (North Atlantic)1.1 ACE
Julian (North Atlantic)1.1 ACE
Bill (North Atlantic)1.0 ACE
Ana (North Atlantic)0.8 ACE
Bina (South Pacific)0.8 ACE
Jawad (North Indian)0.7 ACE
Marty (Eastern North Pacific)0.7 ACE
Kate (North Atlantic)0.7 ACE
Andres (Eastern North Pacific)0.6 ACE
Jimena (Eastern North Pacific)0.6 ACE
Sandra (Eastern North Pacific)0.6 ACE
Teresa (North Atlantic)0.6 ACE
Imogen (South Pacific)0.5 ACE
Koguma (Western North Pacific)0.5 ACE
Terry (Eastern North Pacific)0.5 ACE
Mindy (North Atlantic)0.5 ACE
Odette (North Atlantic)0.4 ACE
Danny (North Atlantic)0.4 ACE
Ignacio (Eastern North Pacific)0.4 ACE
Dianmu (Western North Pacific)0.3 ACE
Nepartak (Western North Pacific)0.0 ACE

ACE is the sum of the squares of six hourly wind speeds, in units of 10,000 knots squared, counted while winds are at or above 34 knots.

Landfalls

Landfalls of Chanthu 2021
DatePlacePositionWind
2021-09-17Open coast, place not named in the data33.8, 132.845 kt (83 km/h, 52 mph)

Which Agency's Numbers

Wind and pressure from jtwc_wp,tokyo,us as carried in NOAA IBTrACS. Agencies average winds over different periods.

Related Headlines

Third party news, headline and link only

Download the Data

Sources: Source: International Best Track Archive for Climate Stewardship (IBTrACS) v04r01, NOAA National Centers for Environmental Information, doi:10.25921/82ty-9e16. Some agency values come from third parties such as JMA, IMD and BoM. (NOAA NCEI terms (citation requested)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17. Storm records are best tracks and can be revised by the agencies.