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

Tammy: 2023 North Atlantic

Tammy reached 95 kt (176 km/h, 109 mph) (C2) in the 2023 North Atlantic season, from 2023-10-18 to 2023-10-31, with track, wind and pressure and 17.4 ACE.

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

Key Facts

  • Tammy was a category 2 at its peak in the 2023 North Atlantic season.
  • Peak maximum sustained wind was 95 kt (176 km/h, 109 mph), reached on 25 October 2023, and the lowest pressure was 965 hPa.
  • The track runs from 18 October 2023 to 31 October 2023 with 106 six hourly positions.
  • Tammy accumulated 17.4 ACE.
  • No landfall is recorded in the track.

Track

18 October 2023 to 31 October 2023
Track of Tammy 2023, coloured by intensity Tammy formed on 18 October 2023 and its track is coloured by category at each six hourly step, peaking as a category 2.
Tammy formed on 18 October 2023 and its track is coloured by category at each six hourly step, peaking as a category 2. Made with Natural Earth and IBTrACS.
Track of Tammy 2023, coloured by intensity: tracks drawn on the map
StormFirst position (lat, lon)Last position (lat, lon)Track points
Tammy12.9, -51.024.6, -50.6106

Wind

Knots, six hourly
Maximum sustained wind of Tammy Maximum sustained wind in knots every six hours, from 35 kt (65 km/h, 40 mph) at the start to a peak of 95 kt (176 km/h, 109 mph). 0 25 50 75 100 10-1810-2010-2210-2310-2510-2710-2910-30
Maximum sustained wind in knots every six hours, from 35 kt (65 km/h, 40 mph) at the start to a peak of 95 kt (176 km/h, 109 mph).
Maximum sustained wind of Tammy
Time (UTC)Wind (kt)
2023-10-18T18:00:00Z35 kt
2023-10-18T21:00:00Z35 kt
2023-10-19T00:00:00Z35 kt
2023-10-19T03:00:00Z40 kt
2023-10-19T06:00:00Z45 kt
2023-10-19T09:00:00Z48 kt
2023-10-19T12:00:00Z50 kt
2023-10-19T15:00:00Z50 kt
2023-10-19T18:00:00Z50 kt
2023-10-19T21:00:00Z50 kt
2023-10-20T00:00:00Z50 kt
2023-10-20T03:00:00Z50 kt
2023-10-20T06:00:00Z50 kt
2023-10-20T09:00:00Z55 kt
2023-10-20T12:00:00Z60 kt
2023-10-20T15:00:00Z63 kt
2023-10-20T18:00:00Z65 kt
2023-10-20T21:00:00Z68 kt
2023-10-21T00:00:00Z70 kt
2023-10-21T03:00:00Z70 kt
2023-10-21T06:00:00Z70 kt
2023-10-21T09:00:00Z73 kt
2023-10-21T12:00:00Z75 kt
2023-10-21T15:00:00Z75 kt
2023-10-21T18:00:00Z75 kt
2023-10-21T21:00:00Z78 kt
2023-10-22T00:00:00Z80 kt
2023-10-22T01:15:00Z80 kt
2023-10-22T03:00:00Z78 kt
2023-10-22T06:00:00Z75 kt
2023-10-22T09:00:00Z75 kt
2023-10-22T12:00:00Z75 kt
2023-10-22T15:00:00Z75 kt
2023-10-22T18:00:00Z75 kt
2023-10-22T21:00:00Z75 kt
2023-10-23T00:00:00Z75 kt
2023-10-23T03:00:00Z73 kt
2023-10-23T06:00:00Z70 kt
2023-10-23T09:00:00Z70 kt
2023-10-23T12:00:00Z70 kt
2023-10-23T15:00:00Z68 kt
2023-10-23T18:00:00Z65 kt
2023-10-23T21:00:00Z65 kt
2023-10-24T00:00:00Z65 kt
2023-10-24T03:00:00Z65 kt
2023-10-24T06:00:00Z65 kt
2023-10-24T09:00:00Z65 kt
2023-10-24T12:00:00Z65 kt
2023-10-24T15:00:00Z65 kt
2023-10-24T18:00:00Z65 kt
2023-10-24T21:00:00Z70 kt
2023-10-25T00:00:00Z75 kt
2023-10-25T03:00:00Z80 kt
2023-10-25T06:00:00Z85 kt
2023-10-25T09:00:00Z90 kt
2023-10-25T12:00:00Z95 kt
2023-10-25T15:00:00Z90 kt
2023-10-25T18:00:00Z85 kt
2023-10-25T21:00:00Z83 kt
2023-10-26T00:00:00Z80 kt
2023-10-26T03:00:00Z78 kt
2023-10-26T06:00:00Z75 kt
2023-10-26T09:00:00Z73 kt
2023-10-26T12:00:00Z70 kt
2023-10-26T15:00:00Z68 kt
2023-10-26T18:00:00Z65 kt
2023-10-26T21:00:00Z63 kt
2023-10-27T00:00:00Z60 kt
2023-10-27T03:00:00Z58 kt
2023-10-27T06:00:00Z55 kt
2023-10-27T09:00:00Z55 kt
2023-10-27T12:00:00Z55 kt
2023-10-27T15:00:00Z55 kt
2023-10-27T18:00:00Z55 kt
2023-10-27T21:00:00Z53 kt
2023-10-28T00:00:00Z50 kt
2023-10-28T03:00:00Z48 kt
2023-10-28T06:00:00Z45 kt
2023-10-28T09:00:00Z45 kt
2023-10-28T12:00:00Z45 kt
2023-10-28T15:00:00Z43 kt
2023-10-28T18:00:00Z40 kt
2023-10-28T21:00:00Z38 kt
2023-10-29T00:00:00Z35 kt
2023-10-29T03:00:00Z35 kt
2023-10-29T06:00:00Z35 kt
2023-10-29T09:00:00Z35 kt
2023-10-29T12:00:00Z35 kt
2023-10-29T15:00:00Z35 kt
2023-10-29T18:00:00Z35 kt
2023-10-29T21:00:00Z33 kt
2023-10-30T00:00:00Z30 kt
2023-10-30T03:00:00Z30 kt
2023-10-30T06:00:00Z30 kt
2023-10-30T09:00:00Z30 kt
2023-10-30T12:00:00Z30 kt
2023-10-30T15:00:00Z28 kt
2023-10-30T18:00:00Z25 kt
2023-10-30T21:00:00Z25 kt
2023-10-31T00:00:00Z25 kt
2023-10-31T03:00:00Z25 kt
2023-10-31T06:00:00Z25 kt
2023-10-31T09:00:00Z23 kt
2023-10-31T12:00:00Z20 kt
2023-10-31T15:00:00Z20 kt
2023-10-31T18:00:00Z20 kt

Pressure

hPa, six hourly
Central pressure of Tammy Central pressure in hectopascals every six hours, falling to 965 hPa at the lowest. 960 1020 1080 1140 1200 10-1810-2010-2210-2310-2510-2710-2910-30
Central pressure in hectopascals every six hours, falling to 965 hPa at the lowest.
Central pressure of Tammy
Time (UTC)Pressure (hPa)
2023-10-18T18:00:00Z1007 hPa
2023-10-18T21:00:00Z1007 hPa
2023-10-19T00:00:00Z1006 hPa
2023-10-19T03:00:00Z1005 hPa
2023-10-19T06:00:00Z1004 hPa
2023-10-19T09:00:00Z1004 hPa
2023-10-19T12:00:00Z1004 hPa
2023-10-19T15:00:00Z1003 hPa
2023-10-19T18:00:00Z1002 hPa
2023-10-19T21:00:00Z1002 hPa
2023-10-20T00:00:00Z1001 hPa
2023-10-20T03:00:00Z1001 hPa
2023-10-20T06:00:00Z1000 hPa
2023-10-20T09:00:00Z999 hPa
2023-10-20T12:00:00Z997 hPa
2023-10-20T15:00:00Z994 hPa
2023-10-20T18:00:00Z991 hPa
2023-10-20T21:00:00Z991 hPa
2023-10-21T00:00:00Z991 hPa
2023-10-21T03:00:00Z991 hPa
2023-10-21T06:00:00Z991 hPa
2023-10-21T09:00:00Z989 hPa
2023-10-21T12:00:00Z987 hPa
2023-10-21T15:00:00Z987 hPa
2023-10-21T18:00:00Z987 hPa
2023-10-21T21:00:00Z987 hPa
2023-10-22T00:00:00Z987 hPa
2023-10-22T01:15:00Z987 hPa
2023-10-22T03:00:00Z988 hPa
2023-10-22T06:00:00Z989 hPa
2023-10-22T09:00:00Z990 hPa
2023-10-22T12:00:00Z990 hPa
2023-10-22T15:00:00Z990 hPa
2023-10-22T18:00:00Z990 hPa
2023-10-22T21:00:00Z991 hPa
2023-10-23T00:00:00Z992 hPa
2023-10-23T03:00:00Z993 hPa
2023-10-23T06:00:00Z993 hPa
2023-10-23T09:00:00Z993 hPa
2023-10-23T12:00:00Z993 hPa
2023-10-23T15:00:00Z991 hPa
2023-10-23T18:00:00Z988 hPa
2023-10-23T21:00:00Z988 hPa
2023-10-24T00:00:00Z987 hPa
2023-10-24T03:00:00Z987 hPa
2023-10-24T06:00:00Z987 hPa
2023-10-24T09:00:00Z987 hPa
2023-10-24T12:00:00Z987 hPa
2023-10-24T15:00:00Z987 hPa
2023-10-24T18:00:00Z987 hPa
2023-10-24T21:00:00Z982 hPa
2023-10-25T00:00:00Z976 hPa
2023-10-25T03:00:00Z973 hPa
2023-10-25T06:00:00Z969 hPa
2023-10-25T09:00:00Z967 hPa
2023-10-25T12:00:00Z965 hPa
2023-10-25T15:00:00Z967 hPa
2023-10-25T18:00:00Z968 hPa
2023-10-25T21:00:00Z969 hPa
2023-10-26T00:00:00Z970 hPa
2023-10-26T03:00:00Z971 hPa
2023-10-26T06:00:00Z972 hPa
2023-10-26T09:00:00Z974 hPa
2023-10-26T12:00:00Z975 hPa
2023-10-26T15:00:00Z976 hPa
2023-10-26T18:00:00Z977 hPa
2023-10-26T21:00:00Z979 hPa
2023-10-27T00:00:00Z980 hPa
2023-10-27T03:00:00Z983 hPa
2023-10-27T06:00:00Z985 hPa
2023-10-27T09:00:00Z987 hPa
2023-10-27T12:00:00Z988 hPa
2023-10-27T15:00:00Z988 hPa
2023-10-27T18:00:00Z988 hPa
2023-10-27T21:00:00Z990 hPa
2023-10-28T00:00:00Z991 hPa
2023-10-28T03:00:00Z993 hPa
2023-10-28T06:00:00Z994 hPa
2023-10-28T09:00:00Z995 hPa
2023-10-28T12:00:00Z995 hPa
2023-10-28T15:00:00Z996 hPa
2023-10-28T18:00:00Z997 hPa
2023-10-28T21:00:00Z999 hPa
2023-10-29T00:00:00Z1000 hPa
2023-10-29T03:00:00Z1001 hPa
2023-10-29T06:00:00Z1002 hPa
2023-10-29T09:00:00Z1002 hPa
2023-10-29T12:00:00Z1002 hPa
2023-10-29T15:00:00Z1002 hPa
2023-10-29T18:00:00Z1002 hPa
2023-10-29T21:00:00Z1003 hPa
2023-10-30T00:00:00Z1004 hPa
2023-10-30T03:00:00Z1005 hPa
2023-10-30T06:00:00Z1005 hPa
2023-10-30T09:00:00Z1005 hPa
2023-10-30T12:00:00Z1005 hPa
2023-10-30T15:00:00Z1006 hPa
2023-10-30T18:00:00Z1006 hPa
2023-10-30T21:00:00Z1006 hPa
2023-10-31T00:00:00Z1006 hPa
2023-10-31T03:00:00Z1007 hPa
2023-10-31T06:00:00Z1007 hPa
2023-10-31T09:00:00Z1008 hPa
2023-10-31T12:00:00Z1008 hPa
2023-10-31T15:00:00Z1008 hPa
2023-10-31T18:00:00Z1008 hPa

ACE Compared With the 2023 Season

Accumulated cyclone energy of named storms in 2023
Freddy (South-West Indian)66.2 ACE
Dora (Eastern North Pacific)53.8 ACE
Mawar (Western North Pacific)36.9 ACE
Lee (North Atlantic)36.7 ACE
Darian (South-West Indian)33.1 ACE
Saola (Western North Pacific)26.8 ACE
Franklin (North Atlantic)26.4 ACE
Biparjoy (North Indian)22.5 ACE
Khanun (Western North Pacific)22.2 ACE
Koinu (Western North Pacific)20.3 ACE
Bolaven (Western North Pacific)18.5 ACE
Tammy (this storm)17.4 ACE
Jova (Eastern North Pacific)16.1 ACE
Doksuri (Western North Pacific)15.7 ACE
Lan (Western North Pacific)15.7 ACE
Norma (Eastern North Pacific)14.9 ACE
Calvin (Eastern North Pacific)14.4 ACE
Kevin (South Pacific)13.6 ACE
Hilary (Eastern North Pacific)13.2 ACE
Margot (North Atlantic)12.5 ACE
Lidia (Eastern North Pacific)12.0 ACE
Herman (South-West Indian)11.7 ACE
Mocha (North Indian)11.3 ACE
Judy (South Pacific)11.3 ACE
Fernanda (Eastern North Pacific)11.3 ACE
Fabien (South-West Indian)10.6 ACE
Nigel (North Atlantic)10.5 ACE
Ilsa (South Pacific)10.0 ACE
Philippe (North Atlantic)9.6 ACE
Guchol (Western North Pacific)9.3 ACE
Haikui (Western North Pacific)9.2 ACE
Adrian (Eastern North Pacific)8.8 ACE
Dingani (South-West Indian)8.1 ACE
Cheneso (South-West Indian)8.0 ACE
Tej (North Indian)7.7 ACE
Otis (Eastern North Pacific)7.4 ACE
Idalia (North Atlantic)7.1 ACE
Don (North Atlantic)6.7 ACE
Enala (South-West Indian)6.6 ACE
Gabrielle (South Pacific)5.8 ACE
Pilar (Eastern North Pacific)5.4 ACE
Bret (North Atlantic)4.5 ACE
Talim (Western North Pacific)3.7 ACE
Damrey (Western North Pacific)3.4 ACE
Gert (North Atlantic)2.7 ACE
Beatriz (Eastern North Pacific)2.6 ACE
Cindy (North Atlantic)2.5 ACE
Greg (Eastern North Pacific)2.4 ACE
Kirogi (Western North Pacific)2.4 ACE
Michaung (North Indian)2.3 ACE
Rina (North Atlantic)2.2 ACE
Eugene (Eastern North Pacific)1.9 ACE
Jose (North Atlantic)1.8 ACE
Kenneth (Eastern North Pacific)1.8 ACE
Yun-Yeung (Western North Pacific)1.8 ACE
Hamoon (North Indian)1.7 ACE
Ophelia (North Atlantic)1.5 ACE
Katia (North Atlantic)1.3 ACE
Sean (North Atlantic)1.3 ACE
Sanba (Western North Pacific)1.3 ACE
Ashley (South-West Indian)1.3 ACE
Sanvu (Western North Pacific)1.2 ACE
Max (Eastern North Pacific)1.2 ACE
Irene (South Pacific)1.1 ACE
Irwin (Eastern North Pacific)1.1 ACE
Ramon (Eastern North Pacific)0.9 ACE
Emily (North Atlantic)0.9 ACE
Harold (North Atlantic)0.6 ACE
Arlene (North Atlantic)0.5 ACE
Midhili (North Indian)0.5 ACE
Ellie (South-West Indian)0.4 ACE
Balita (South-West Indian)0.4 ACE
Hale (South Pacific)0.4 ACE
Jelawat (Western North Pacific)0.4 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 hurdat_atl,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.