Greg was a TS Atlantic tropical cyclone that existed from August 14 to August 18, 2023 (5 days). It reached peak winds of 51 mph (45 kt) and a minimum central pressure of 1000 mb.
The National Hurricane Center's official post-storm analysis is published as a detailed PDF report — meteorological history, casualties, damage assessment, forecast performance, and synoptic discussion.
Read NHC's full report on Greg → (opens at nhc.noaa.gov)| Time (UTC) | Status | Lat | Lon | Winds (kt) | Pressure (mb) | Record |
|---|---|---|---|---|---|---|
| 2023-08-14 00:00 | TD | 11.30 | -138.20 | 30 | 1007 | |
| 2023-08-14 06:00 | TS | 11.30 | -139.20 | 35 | 1005 | |
| 2023-08-14 12:00 | TS | 11.30 | -140.40 | 35 | 1005 | |
| 2023-08-14 18:00 | TS | 11.20 | -141.50 | 40 | 1005 | |
| 2023-08-15 00:00 | TS | 11.10 | -142.70 | 40 | 1002 | |
| 2023-08-15 06:00 | TS | 11.10 | -144.00 | 45 | 1000 | |
| 2023-08-15 12:00 | TS | 11.10 | -145.20 | 45 | 1000 | |
| 2023-08-15 18:00 | TS | 11.10 | -146.50 | 45 | 1000 | |
| 2023-08-16 00:00 | TS | 11.30 | -147.70 | 45 | 1000 | |
| 2023-08-16 06:00 | TS | 11.60 | -149.10 | 45 | 1000 | |
| 2023-08-16 12:00 | TS | 11.70 | -150.50 | 45 | 1000 | |
| 2023-08-16 18:00 | TS | 11.80 | -151.80 | 40 | 1004 | |
| 2023-08-17 00:00 | TS | 12.00 | -152.90 | 40 | 1004 | |
| 2023-08-17 06:00 | TS | 12.10 | -153.90 | 40 | 1004 | |
| 2023-08-17 12:00 | TS | 12.00 | -155.10 | 35 | 1006 | |
| 2023-08-17 18:00 | TD | 12.20 | -156.30 | 30 | 1007 | |
| 2023-08-18 00:00 | LO | 12.10 | -157.80 | 30 | 1007 | |
| 2023-08-18 06:00 | LO | 12.10 | -157.80 | 30 | 1008 |
Source: NOAA National Hurricane Center HURDAT2 best-track database (nhc.noaa.gov/data). Data is in the public domain. Best-track positions and intensities are post-storm reanalysis estimates and may differ from real-time advisories.