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

Dahlia: 2018 South-West Indian

Dahlia reached 53 kt (98 km/h, 61 mph) (TS) in the 2018 South-West Indian season, from 2017-11-27 to 2017-12-07, with track, wind and pressure and 2.4 ACE.

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

Key Facts

  • Dahlia was a tropical storm at its peak in the 2018 South-West Indian season.
  • Peak maximum sustained wind was 53 kt (98 km/h, 61 mph), reached on 1 December 2017, and the lowest pressure was 987 hPa.
  • The track runs from 27 November 2017 to 7 December 2017 with 77 six hourly positions.
  • Dahlia accumulated 2.4 ACE.
  • No landfall is recorded in the track.

Track

27 November 2017 to 7 December 2017
Track of Dahlia 2018, coloured by intensity Dahlia formed on 27 November 2017 and its track is coloured by category at each six hourly step, peaking as a tropical storm.
Dahlia formed on 27 November 2017 and its track is coloured by category at each six hourly step, peaking as a tropical storm. Made with Natural Earth and IBTrACS.
Track of Dahlia 2018, coloured by intensity: tracks drawn on the map
StormFirst position (lat, lon)Last position (lat, lon)Track points
Dahlia-7.8, 97.5-14.2, 113.077

Wind

Knots, six hourly
Maximum sustained wind of Dahlia Maximum sustained wind in knots every six hours, from 20 kt (37 km/h, 23 mph) at the start to a peak of 53 kt (98 km/h, 61 mph). 0 15 30 45 60 11-2711-2811-3012-0112-0212-0312-0512-06
Maximum sustained wind in knots every six hours, from 20 kt (37 km/h, 23 mph) at the start to a peak of 53 kt (98 km/h, 61 mph).
Maximum sustained wind of Dahlia
Time (UTC)Wind (kt)
2017-11-27T12:00:00Z20 kt
2017-11-27T15:00:00Zn/a
2017-11-27T18:00:00Z20 kt
2017-11-27T21:00:00Zn/a
2017-11-28T00:00:00Z20 kt
2017-11-28T03:00:00Zn/a
2017-11-28T06:00:00Z20 kt
2017-11-28T09:00:00Zn/a
2017-11-28T12:00:00Z20 kt
2017-11-28T15:00:00Z20 kt
2017-11-28T18:00:00Z25 kt
2017-11-28T21:00:00Z23 kt
2017-11-29T00:00:00Z25 kt
2017-11-29T03:00:00Z28 kt
2017-11-29T06:00:00Z30 kt
2017-11-29T09:00:00Z33 kt
2017-11-29T12:00:00Z35 kt
2017-11-29T15:00:00Z35 kt
2017-11-29T18:00:00Z35 kt
2017-11-29T21:00:00Z38 kt
2017-11-30T00:00:00Z35 kt
2017-11-30T03:00:00Z40 kt
2017-11-30T06:00:00Z40 kt
2017-11-30T09:00:00Z43 kt
2017-11-30T12:00:00Z40 kt
2017-11-30T15:00:00Z45 kt
2017-11-30T18:00:00Z45 kt
2017-11-30T21:00:00Z50 kt
2017-12-01T00:00:00Z50 kt
2017-12-01T03:00:00Z53 kt
2017-12-01T06:00:00Z50 kt
2017-12-01T09:00:00Z50 kt
2017-12-01T12:00:00Z50 kt
2017-12-01T15:00:00Z50 kt
2017-12-01T18:00:00Z50 kt
2017-12-01T21:00:00Z48 kt
2017-12-02T00:00:00Z50 kt
2017-12-02T03:00:00Z43 kt
2017-12-02T06:00:00Z40 kt
2017-12-02T09:00:00Z40 kt
2017-12-02T12:00:00Z30 kt
2017-12-02T15:00:00Z38 kt
2017-12-02T18:00:00Z30 kt
2017-12-02T21:00:00Z35 kt
2017-12-03T00:00:00Z30 kt
2017-12-03T03:00:00Z35 kt
2017-12-03T06:00:00Z35 kt
2017-12-03T09:00:00Z35 kt
2017-12-03T12:00:00Z30 kt
2017-12-03T15:00:00Z33 kt
2017-12-03T18:00:00Z30 kt
2017-12-03T21:00:00Z28 kt
2017-12-04T00:00:00Z30 kt
2017-12-04T03:00:00Z25 kt
2017-12-04T06:00:00Z25 kt
2017-12-04T09:00:00Z25 kt
2017-12-04T12:00:00Z25 kt
2017-12-04T15:00:00Z25 kt
2017-12-04T18:00:00Z25 kt
2017-12-04T21:00:00Z25 kt
2017-12-05T00:00:00Z25 kt
2017-12-05T03:00:00Z25 kt
2017-12-05T06:00:00Z25 kt
2017-12-05T09:00:00Z23 kt
2017-12-05T12:00:00Z20 kt
2017-12-05T15:00:00Z20 kt
2017-12-05T18:00:00Z20 kt
2017-12-05T21:00:00Z20 kt
2017-12-06T00:00:00Z20 kt
2017-12-06T03:00:00Z18 kt
2017-12-06T06:00:00Z15 kt
2017-12-06T09:00:00Z15 kt
2017-12-06T12:00:00Z15 kt
2017-12-06T15:00:00Z15 kt
2017-12-06T18:00:00Z15 kt
2017-12-06T21:00:00Z13 kt
2017-12-07T00:00:00Z10 kt

Pressure

hPa, six hourly
Central pressure of Dahlia Central pressure in hectopascals every six hours, falling to 987 hPa at the lowest. 980 1035 1090 1145 1200 11-2711-2811-3012-0112-0212-0312-0512-06
Central pressure in hectopascals every six hours, falling to 987 hPa at the lowest.
Central pressure of Dahlia
Time (UTC)Pressure (hPa)
2017-11-27T12:00:00Z1002 hPa
2017-11-27T15:00:00Zn/a
2017-11-27T18:00:00Z1002 hPa
2017-11-27T21:00:00Zn/a
2017-11-28T00:00:00Z1002 hPa
2017-11-28T03:00:00Zn/a
2017-11-28T06:00:00Z1000 hPa
2017-11-28T09:00:00Zn/a
2017-11-28T12:00:00Z1000 hPa
2017-11-28T15:00:00Z1007 hPa
2017-11-28T18:00:00Z999 hPa
2017-11-28T21:00:00Z1006 hPa
2017-11-29T00:00:00Z999 hPa
2017-11-29T03:00:00Z1003 hPa
2017-11-29T06:00:00Z999 hPa
2017-11-29T09:00:00Z1001 hPa
2017-11-29T12:00:00Z998 hPa
2017-11-29T15:00:00Z1000 hPa
2017-11-29T18:00:00Z998 hPa
2017-11-29T21:00:00Z999 hPa
2017-11-30T00:00:00Z996 hPa
2017-11-30T03:00:00Z997 hPa
2017-11-30T06:00:00Z993 hPa
2017-11-30T09:00:00Z996 hPa
2017-11-30T12:00:00Z992 hPa
2017-11-30T15:00:00Z994 hPa
2017-11-30T18:00:00Z990 hPa
2017-11-30T21:00:00Z991 hPa
2017-12-01T00:00:00Z987 hPa
2017-12-01T03:00:00Z990 hPa
2017-12-01T06:00:00Z987 hPa
2017-12-01T09:00:00Z992 hPa
2017-12-01T12:00:00Z987 hPa
2017-12-01T15:00:00Z992 hPa
2017-12-01T18:00:00Z987 hPa
2017-12-01T21:00:00Z994 hPa
2017-12-02T00:00:00Z988 hPa
2017-12-02T03:00:00Z998 hPa
2017-12-02T06:00:00Z993 hPa
2017-12-02T09:00:00Z999 hPa
2017-12-02T12:00:00Z999 hPa
2017-12-02T15:00:00Z1001 hPa
2017-12-02T18:00:00Z1000 hPa
2017-12-02T21:00:00Z1002 hPa
2017-12-03T00:00:00Z998 hPa
2017-12-03T03:00:00Z1002 hPa
2017-12-03T06:00:00Z998 hPa
2017-12-03T09:00:00Z1002 hPa
2017-12-03T12:00:00Z1000 hPa
2017-12-03T15:00:00Z1003 hPa
2017-12-03T18:00:00Z1000 hPa
2017-12-03T21:00:00Z1005 hPa
2017-12-04T00:00:00Z1002 hPa
2017-12-04T03:00:00Z1005 hPa
2017-12-04T06:00:00Z1005 hPa
2017-12-04T09:00:00Z1005 hPa
2017-12-04T12:00:00Z1005 hPa
2017-12-04T15:00:00Z1005 hPa
2017-12-04T18:00:00Z1005 hPa
2017-12-04T21:00:00Z1005 hPa
2017-12-05T00:00:00Z1004 hPa
2017-12-05T03:00:00Z1004 hPa
2017-12-05T06:00:00Z1004 hPa
2017-12-05T09:00:00Z1005 hPa
2017-12-05T12:00:00Z1005 hPa
2017-12-05T15:00:00Z1005 hPa
2017-12-05T18:00:00Z1005 hPa
2017-12-05T21:00:00Z1006 hPa
2017-12-06T00:00:00Z1006 hPa
2017-12-06T03:00:00Z1007 hPa
2017-12-06T06:00:00Z1008 hPa
2017-12-06T09:00:00Z1008 hPa
2017-12-06T12:00:00Z1008 hPa
2017-12-06T15:00:00Z1009 hPa
2017-12-06T18:00:00Z1010 hPa
2017-12-06T21:00:00Z1011 hPa
2017-12-07T00:00:00Z1012 hPa

ACE Compared With the 2018 Season

Accumulated cyclone energy of named storms in 2018
Hector (Eastern North Pacific)50.6 ACE
Lane (Eastern North Pacific)42.7 ACE
Florence (North Atlantic)39.7 ACE
Norman (Eastern North Pacific)36.8 ACE
Sergio (Eastern North Pacific)35.7 ACE
Mangkhut (Western North Pacific)29.8 ACE
Yutu (Western North Pacific)28.7 ACE
Gita (South Pacific)27.2 ACE
Trami (Western North Pacific)25.5 ACE
Olivia (Eastern North Pacific)25.0 ACE
Cebile (South-West Indian)25.0 ACE
Walaka (Eastern North Pacific)24.8 ACE
Marcus (South-West Indian)23.2 ACE
Jebi (Western North Pacific)22.8 ACE
Maria (Western North Pacific)22.1 ACE
Leslie (North Atlantic)21.3 ACE
Kong-Rey (Western North Pacific)18.1 ACE
Rosa (Eastern North Pacific)17.0 ACE
Soulik (Western North Pacific)16.6 ACE
Willa (Eastern North Pacific)15.7 ACE
Helene (North Atlantic)15.7 ACE
Michael (North Atlantic)12.5 ACE
Bud (Eastern North Pacific)12.4 ACE
Shanshan (Western North Pacific)11.4 ACE
Jelawat (Western North Pacific)11.4 ACE
Aletta (Eastern North Pacific)11.2 ACE
Miriam (Eastern North Pacific)10.6 ACE
Cimaron (Western North Pacific)9.9 ACE
Fabio (Eastern North Pacific)9.9 ACE
Jongdari (Western North Pacific)9.3 ACE
Man-Yi (Western North Pacific)9.2 ACE
Hola (South Pacific)9.0 ACE
Oscar (North Atlantic)9.0 ACE
John (Eastern North Pacific)8.5 ACE
Mekunu (North Indian)8.5 ACE
Berguitta (South-West Indian)8.3 ACE
Luban (North Indian)7.9 ACE
Chris (North Atlantic)7.4 ACE
Isaac (North Atlantic)6.8 ACE
Dumazile (South-West Indian)6.4 ACE
Prapiroon (Western North Pacific)5.8 ACE
Irving (South-West Indian)5.7 ACE
Ava (South-West Indian)5.1 ACE
Keni (South Pacific)5.0 ACE
Beryl (North Atlantic)4.8 ACE
Nora (South Pacific)4.7 ACE
Eliakim (South-West Indian)4.5 ACE
Gaja (North Indian)4.4 ACE
Kristy (Eastern North Pacific)4.3 ACE
Kelvin (South-West Indian)4.3 ACE
Titli (North Indian)3.8 ACE
Ampil (Western North Pacific)3.6 ACE
Iris (South Pacific)3.5 ACE
Maliksi (Western North Pacific)3.5 ACE
Usagi (Western North Pacific)3.4 ACE
Leepi (Western North Pacific)3.3 ACE
Kirk (North Atlantic)3.2 ACE
Pabuk (Western North Pacific)3.1 ACE
Flamboyan (South-West Indian)3.0 ACE
Wukong (Western North Pacific)2.9 ACE
Xavier (Eastern North Pacific)2.8 ACE
Nadine (North Atlantic)2.7 ACE
Bebinca (Western North Pacific)2.7 ACE
Yagi (Western North Pacific)2.6 ACE
Dahlia (this storm)2.4 ACE
Joyce (North Atlantic)2.4 ACE
Gordon (North Atlantic)2.3 ACE
Son-Tinh (Western North Pacific)2.3 ACE
Vicente (Eastern North Pacific)2.2 ACE
Fakir (South-West Indian)2.1 ACE
Fehi (South Pacific)1.9 ACE
Ileana (Eastern North Pacific)1.9 ACE
Ewiniar (Western North Pacific)1.9 ACE
Barijat (Western North Pacific)1.8 ACE
Alberto (North Atlantic)1.8 ACE
Rumbia (Western North Pacific)1.7 ACE
Sagar (North Indian)1.7 ACE
Phethai (North Indian)1.7 ACE
Josie (South Pacific)1.7 ACE
Cempaka (South-West Indian)1.6 ACE
Linda (South Pacific)1.6 ACE
Debby (North Atlantic)1.5 ACE
Carlotta (Eastern North Pacific)1.5 ACE
Emilia (Eastern North Pacific)1.5 ACE
Ernesto (North Atlantic)1.5 ACE
Joyce (South-West Indian)1.4 ACE
Tara (Eastern North Pacific)1.3 ACE
Paul (Eastern North Pacific)1.2 ACE
Sanba (Western North Pacific)1.1 ACE
Daniel (Eastern North Pacific)0.7 ACE
Hilda (South-West Indian)0.7 ACE
Gilma (Eastern North Pacific)0.5 ACE
Bolaven (Western North Pacific)0.5 ACE
Gaemi (Western North Pacific)0.5 ACE
Toraji (Western North Pacific)0.4 ACE
Daye (North Indian)0.1 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.

Which Agency's Numbers

Wind and pressure from bom,jtwc_sh,usa 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.