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| Storm | First position (lat, lon) | Last position (lat, lon) | Track points |
|---|---|---|---|
| Tammy | 12.9, -51.0 | 24.6, -50.6 | 106 |
Wind
Knots, six hourly| Time (UTC) | Wind (kt) |
|---|---|
| 2023-10-18T18:00:00Z | 35 kt |
| 2023-10-18T21:00:00Z | 35 kt |
| 2023-10-19T00:00:00Z | 35 kt |
| 2023-10-19T03:00:00Z | 40 kt |
| 2023-10-19T06:00:00Z | 45 kt |
| 2023-10-19T09:00:00Z | 48 kt |
| 2023-10-19T12:00:00Z | 50 kt |
| 2023-10-19T15:00:00Z | 50 kt |
| 2023-10-19T18:00:00Z | 50 kt |
| 2023-10-19T21:00:00Z | 50 kt |
| 2023-10-20T00:00:00Z | 50 kt |
| 2023-10-20T03:00:00Z | 50 kt |
| 2023-10-20T06:00:00Z | 50 kt |
| 2023-10-20T09:00:00Z | 55 kt |
| 2023-10-20T12:00:00Z | 60 kt |
| 2023-10-20T15:00:00Z | 63 kt |
| 2023-10-20T18:00:00Z | 65 kt |
| 2023-10-20T21:00:00Z | 68 kt |
| 2023-10-21T00:00:00Z | 70 kt |
| 2023-10-21T03:00:00Z | 70 kt |
| 2023-10-21T06:00:00Z | 70 kt |
| 2023-10-21T09:00:00Z | 73 kt |
| 2023-10-21T12:00:00Z | 75 kt |
| 2023-10-21T15:00:00Z | 75 kt |
| 2023-10-21T18:00:00Z | 75 kt |
| 2023-10-21T21:00:00Z | 78 kt |
| 2023-10-22T00:00:00Z | 80 kt |
| 2023-10-22T01:15:00Z | 80 kt |
| 2023-10-22T03:00:00Z | 78 kt |
| 2023-10-22T06:00:00Z | 75 kt |
| 2023-10-22T09:00:00Z | 75 kt |
| 2023-10-22T12:00:00Z | 75 kt |
| 2023-10-22T15:00:00Z | 75 kt |
| 2023-10-22T18:00:00Z | 75 kt |
| 2023-10-22T21:00:00Z | 75 kt |
| 2023-10-23T00:00:00Z | 75 kt |
| 2023-10-23T03:00:00Z | 73 kt |
| 2023-10-23T06:00:00Z | 70 kt |
| 2023-10-23T09:00:00Z | 70 kt |
| 2023-10-23T12:00:00Z | 70 kt |
| 2023-10-23T15:00:00Z | 68 kt |
| 2023-10-23T18:00:00Z | 65 kt |
| 2023-10-23T21:00:00Z | 65 kt |
| 2023-10-24T00:00:00Z | 65 kt |
| 2023-10-24T03:00:00Z | 65 kt |
| 2023-10-24T06:00:00Z | 65 kt |
| 2023-10-24T09:00:00Z | 65 kt |
| 2023-10-24T12:00:00Z | 65 kt |
| 2023-10-24T15:00:00Z | 65 kt |
| 2023-10-24T18:00:00Z | 65 kt |
| 2023-10-24T21:00:00Z | 70 kt |
| 2023-10-25T00:00:00Z | 75 kt |
| 2023-10-25T03:00:00Z | 80 kt |
| 2023-10-25T06:00:00Z | 85 kt |
| 2023-10-25T09:00:00Z | 90 kt |
| 2023-10-25T12:00:00Z | 95 kt |
| 2023-10-25T15:00:00Z | 90 kt |
| 2023-10-25T18:00:00Z | 85 kt |
| 2023-10-25T21:00:00Z | 83 kt |
| 2023-10-26T00:00:00Z | 80 kt |
| 2023-10-26T03:00:00Z | 78 kt |
| 2023-10-26T06:00:00Z | 75 kt |
| 2023-10-26T09:00:00Z | 73 kt |
| 2023-10-26T12:00:00Z | 70 kt |
| 2023-10-26T15:00:00Z | 68 kt |
| 2023-10-26T18:00:00Z | 65 kt |
| 2023-10-26T21:00:00Z | 63 kt |
| 2023-10-27T00:00:00Z | 60 kt |
| 2023-10-27T03:00:00Z | 58 kt |
| 2023-10-27T06:00:00Z | 55 kt |
| 2023-10-27T09:00:00Z | 55 kt |
| 2023-10-27T12:00:00Z | 55 kt |
| 2023-10-27T15:00:00Z | 55 kt |
| 2023-10-27T18:00:00Z | 55 kt |
| 2023-10-27T21:00:00Z | 53 kt |
| 2023-10-28T00:00:00Z | 50 kt |
| 2023-10-28T03:00:00Z | 48 kt |
| 2023-10-28T06:00:00Z | 45 kt |
| 2023-10-28T09:00:00Z | 45 kt |
| 2023-10-28T12:00:00Z | 45 kt |
| 2023-10-28T15:00:00Z | 43 kt |
| 2023-10-28T18:00:00Z | 40 kt |
| 2023-10-28T21:00:00Z | 38 kt |
| 2023-10-29T00:00:00Z | 35 kt |
| 2023-10-29T03:00:00Z | 35 kt |
| 2023-10-29T06:00:00Z | 35 kt |
| 2023-10-29T09:00:00Z | 35 kt |
| 2023-10-29T12:00:00Z | 35 kt |
| 2023-10-29T15:00:00Z | 35 kt |
| 2023-10-29T18:00:00Z | 35 kt |
| 2023-10-29T21:00:00Z | 33 kt |
| 2023-10-30T00:00:00Z | 30 kt |
| 2023-10-30T03:00:00Z | 30 kt |
| 2023-10-30T06:00:00Z | 30 kt |
| 2023-10-30T09:00:00Z | 30 kt |
| 2023-10-30T12:00:00Z | 30 kt |
| 2023-10-30T15:00:00Z | 28 kt |
| 2023-10-30T18:00:00Z | 25 kt |
| 2023-10-30T21:00:00Z | 25 kt |
| 2023-10-31T00:00:00Z | 25 kt |
| 2023-10-31T03:00:00Z | 25 kt |
| 2023-10-31T06:00:00Z | 25 kt |
| 2023-10-31T09:00:00Z | 23 kt |
| 2023-10-31T12:00:00Z | 20 kt |
| 2023-10-31T15:00:00Z | 20 kt |
| 2023-10-31T18:00:00Z | 20 kt |
Pressure
hPa, six hourly| Time (UTC) | Pressure (hPa) |
|---|---|
| 2023-10-18T18:00:00Z | 1007 hPa |
| 2023-10-18T21:00:00Z | 1007 hPa |
| 2023-10-19T00:00:00Z | 1006 hPa |
| 2023-10-19T03:00:00Z | 1005 hPa |
| 2023-10-19T06:00:00Z | 1004 hPa |
| 2023-10-19T09:00:00Z | 1004 hPa |
| 2023-10-19T12:00:00Z | 1004 hPa |
| 2023-10-19T15:00:00Z | 1003 hPa |
| 2023-10-19T18:00:00Z | 1002 hPa |
| 2023-10-19T21:00:00Z | 1002 hPa |
| 2023-10-20T00:00:00Z | 1001 hPa |
| 2023-10-20T03:00:00Z | 1001 hPa |
| 2023-10-20T06:00:00Z | 1000 hPa |
| 2023-10-20T09:00:00Z | 999 hPa |
| 2023-10-20T12:00:00Z | 997 hPa |
| 2023-10-20T15:00:00Z | 994 hPa |
| 2023-10-20T18:00:00Z | 991 hPa |
| 2023-10-20T21:00:00Z | 991 hPa |
| 2023-10-21T00:00:00Z | 991 hPa |
| 2023-10-21T03:00:00Z | 991 hPa |
| 2023-10-21T06:00:00Z | 991 hPa |
| 2023-10-21T09:00:00Z | 989 hPa |
| 2023-10-21T12:00:00Z | 987 hPa |
| 2023-10-21T15:00:00Z | 987 hPa |
| 2023-10-21T18:00:00Z | 987 hPa |
| 2023-10-21T21:00:00Z | 987 hPa |
| 2023-10-22T00:00:00Z | 987 hPa |
| 2023-10-22T01:15:00Z | 987 hPa |
| 2023-10-22T03:00:00Z | 988 hPa |
| 2023-10-22T06:00:00Z | 989 hPa |
| 2023-10-22T09:00:00Z | 990 hPa |
| 2023-10-22T12:00:00Z | 990 hPa |
| 2023-10-22T15:00:00Z | 990 hPa |
| 2023-10-22T18:00:00Z | 990 hPa |
| 2023-10-22T21:00:00Z | 991 hPa |
| 2023-10-23T00:00:00Z | 992 hPa |
| 2023-10-23T03:00:00Z | 993 hPa |
| 2023-10-23T06:00:00Z | 993 hPa |
| 2023-10-23T09:00:00Z | 993 hPa |
| 2023-10-23T12:00:00Z | 993 hPa |
| 2023-10-23T15:00:00Z | 991 hPa |
| 2023-10-23T18:00:00Z | 988 hPa |
| 2023-10-23T21:00:00Z | 988 hPa |
| 2023-10-24T00:00:00Z | 987 hPa |
| 2023-10-24T03:00:00Z | 987 hPa |
| 2023-10-24T06:00:00Z | 987 hPa |
| 2023-10-24T09:00:00Z | 987 hPa |
| 2023-10-24T12:00:00Z | 987 hPa |
| 2023-10-24T15:00:00Z | 987 hPa |
| 2023-10-24T18:00:00Z | 987 hPa |
| 2023-10-24T21:00:00Z | 982 hPa |
| 2023-10-25T00:00:00Z | 976 hPa |
| 2023-10-25T03:00:00Z | 973 hPa |
| 2023-10-25T06:00:00Z | 969 hPa |
| 2023-10-25T09:00:00Z | 967 hPa |
| 2023-10-25T12:00:00Z | 965 hPa |
| 2023-10-25T15:00:00Z | 967 hPa |
| 2023-10-25T18:00:00Z | 968 hPa |
| 2023-10-25T21:00:00Z | 969 hPa |
| 2023-10-26T00:00:00Z | 970 hPa |
| 2023-10-26T03:00:00Z | 971 hPa |
| 2023-10-26T06:00:00Z | 972 hPa |
| 2023-10-26T09:00:00Z | 974 hPa |
| 2023-10-26T12:00:00Z | 975 hPa |
| 2023-10-26T15:00:00Z | 976 hPa |
| 2023-10-26T18:00:00Z | 977 hPa |
| 2023-10-26T21:00:00Z | 979 hPa |
| 2023-10-27T00:00:00Z | 980 hPa |
| 2023-10-27T03:00:00Z | 983 hPa |
| 2023-10-27T06:00:00Z | 985 hPa |
| 2023-10-27T09:00:00Z | 987 hPa |
| 2023-10-27T12:00:00Z | 988 hPa |
| 2023-10-27T15:00:00Z | 988 hPa |
| 2023-10-27T18:00:00Z | 988 hPa |
| 2023-10-27T21:00:00Z | 990 hPa |
| 2023-10-28T00:00:00Z | 991 hPa |
| 2023-10-28T03:00:00Z | 993 hPa |
| 2023-10-28T06:00:00Z | 994 hPa |
| 2023-10-28T09:00:00Z | 995 hPa |
| 2023-10-28T12:00:00Z | 995 hPa |
| 2023-10-28T15:00:00Z | 996 hPa |
| 2023-10-28T18:00:00Z | 997 hPa |
| 2023-10-28T21:00:00Z | 999 hPa |
| 2023-10-29T00:00:00Z | 1000 hPa |
| 2023-10-29T03:00:00Z | 1001 hPa |
| 2023-10-29T06:00:00Z | 1002 hPa |
| 2023-10-29T09:00:00Z | 1002 hPa |
| 2023-10-29T12:00:00Z | 1002 hPa |
| 2023-10-29T15:00:00Z | 1002 hPa |
| 2023-10-29T18:00:00Z | 1002 hPa |
| 2023-10-29T21:00:00Z | 1003 hPa |
| 2023-10-30T00:00:00Z | 1004 hPa |
| 2023-10-30T03:00:00Z | 1005 hPa |
| 2023-10-30T06:00:00Z | 1005 hPa |
| 2023-10-30T09:00:00Z | 1005 hPa |
| 2023-10-30T12:00:00Z | 1005 hPa |
| 2023-10-30T15:00:00Z | 1006 hPa |
| 2023-10-30T18:00:00Z | 1006 hPa |
| 2023-10-30T21:00:00Z | 1006 hPa |
| 2023-10-31T00:00:00Z | 1006 hPa |
| 2023-10-31T03:00:00Z | 1007 hPa |
| 2023-10-31T06:00:00Z | 1007 hPa |
| 2023-10-31T09:00:00Z | 1008 hPa |
| 2023-10-31T12:00:00Z | 1008 hPa |
| 2023-10-31T15:00:00Z | 1008 hPa |
| 2023-10-31T18:00:00Z | 1008 hPa |
ACE Compared With the 2023 Season
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 onlyDownload 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.