2023 tropical cyclone season · North Atlantic
Hurricane Gert Gert · AL062023
Hurricane Gert was tracked in the North Atlantic from 2023-08-19 to 2023-09-04 (17 days), peaking at 50 kt (TS) with a minimum pressure of 998 hPa. 233 archived forecasts from NHC, ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF ENS, 96 km off on average.
- ATCF ID
- AL062023
- Basin
- North Atlantic
- Tracked
- 2023-08-19 → 2023-09-04 (17 days)
- Peak wind
- 50 kt · 26 m/s · TS
- Minimum pressure
- 998 hPa
- Archived forecasts
- 233
- Sources
- NHC · ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| NHC | 96 (14) | 201 (6) | 220 (1) | — |
| ECMWF | 72 (9) | 112 (5) | 197 (1) | — |
| ECMWF ENS | 65 (8) | 96 (4) | 227 (1) | — |
| GFS | 116 (20) | 303 (12) | 215 (4) | — |
| GEFS | 127 (20) | 246 (12) | 229 (4) | — |
Mean great-circle distance to the best track at each lead time, counted while the system was a tropical or subtropical cyclone; the number of cases is in brackets.
Best track
Six-hourly positions of the US best track (JTWC / NHC, one-minute winds); grades on the Saffir–Simpson scale.
| Time (UTC) | Position | Wind (kt) | Pressure (hPa) | Grade |
|---|---|---|---|---|
| 2023-08-19 00Z | 14.7°N 46.6°W | 30 | 1008 | TD |
| 2023-08-19 06Z | 15.4°N 47.8°W | 30 | 1007 | TD |
| 2023-08-19 12Z | 16.1°N 48.8°W | 30 | 1006 | TD |
| 2023-08-19 18Z | 16.6°N 49.9°W | 30 | 1006 | TD |
| 2023-08-20 00Z | 16.9°N 51.1°W | 30 | 1006 | TD |
| 2023-08-20 06Z | 16.8°N 52.3°W | 30 | 1006 | TD |
| 2023-08-20 12Z | 16.7°N 53.3°W | 35 | 1005 | TS |
| 2023-08-20 18Z | 16.6°N 54.2°W | 35 | 1005 | TS |
| 2023-08-21 00Z | 16.6°N 55.1°W | 35 | 1005 | TS |
| 2023-08-21 06Z | 16.6°N 55.9°W | 35 | 1005 | TS |
| 2023-08-21 12Z | 16.7°N 56.6°W | 30 | 1006 | TD |
| 2023-08-21 18Z | 16.9°N 57.2°W | 25 | 1006 | TD |
| 2023-08-22 00Z | 17.0°N 57.9°W | 25 | 1006 | TD |
| 2023-08-22 06Z | 17.1°N 58.7°W | 25 | 1007 | TD |
| 2023-08-22 12Z | 17.4°N 59.5°W | 25 | 1008 | TD |
| 2023-08-22 18Z | 17.7°N 60.1°W | 25 | 1008 | TD |
| 2023-08-23 00Z | 18.1°N 60.2°W | 25 | 1008 | TD |
| 2023-08-23 06Z | 18.3°N 59.7°W | 25 | 1008 | TD |
| 2023-08-23 12Z | 18.5°N 59.2°W | 25 | 1009 | TD |
| 2023-08-23 18Z | 18.3°N 59.0°W | 25 | 1009 | TD |
| 2023-08-24 00Z | 18.1°N 58.9°W | 20 | 1010 | TD |
| 2023-08-24 06Z | 17.7°N 58.7°W | 20 | 1010 | TD |
| 2023-08-24 12Z | 17.3°N 58.5°W | 20 | 1010 | TD |
| 2023-08-24 18Z | 16.9°N 58.6°W | 20 | 1010 | TD |
| 2023-08-25 00Z | 16.5°N 58.8°W | 20 | 1010 | TD |
| 2023-08-25 06Z | 16.1°N 59.1°W | 20 | 1010 | TD |
| 2023-08-25 12Z | 16.0°N 59.3°W | 20 | 1010 | TD |
| 2023-08-25 18Z | 16.0°N 59.5°W | 20 | 1010 | TD |
| 2023-08-26 00Z | 16.1°N 59.7°W | 20 | 1010 | TD |
| 2023-08-26 06Z | 16.3°N 59.8°W | 25 | 1010 | TD |
| 2023-08-26 12Z | 16.9°N 59.7°W | 25 | 1010 | TD |
| 2023-08-26 18Z | 17.8°N 59.5°W | 25 | 1010 | TD |
| 2023-08-27 00Z | 18.7°N 59.4°W | 25 | 1010 | TD |
| 2023-08-27 06Z | 19.4°N 59.5°W | 25 | 1010 | TD |
| 2023-08-27 12Z | 19.9°N 59.6°W | 25 | 1010 | TD |
| 2023-08-27 18Z | 20.2°N 59.6°W | 25 | 1010 | TD |
| 2023-08-28 00Z | 20.5°N 59.6°W | 25 | 1010 | TD |
| 2023-08-28 06Z | 20.8°N 59.4°W | 25 | 1010 | TD |
| 2023-08-28 12Z | 21.2°N 59.2°W | 25 | 1010 | TD |
| 2023-08-28 18Z | 21.6°N 59.2°W | 25 | 1010 | TD |
| 2023-08-29 00Z | 22.3°N 59.4°W | 25 | 1011 | TD |
| 2023-08-29 06Z | 23.0°N 59.6°W | 25 | 1011 | TD |
| 2023-08-29 12Z | 23.8°N 59.6°W | 25 | 1012 | TD |
| 2023-08-29 18Z | 24.6°N 59.6°W | 25 | 1012 | TD |
| 2023-08-30 00Z | 25.4°N 59.3°W | 25 | 1012 | TD |
| 2023-08-30 06Z | 26.2°N 59.0°W | 25 | 1010 | TD |
| 2023-08-30 12Z | 27.0°N 58.7°W | 25 | 1010 | TD |
| 2023-08-30 18Z | 27.5°N 58.5°W | 25 | 1009 | TD |
| 2023-08-31 00Z | 28.0°N 58.3°W | 30 | 1009 | TD |
| 2023-08-31 06Z | 28.4°N 58.1°W | 30 | 1008 | TD |
| 2023-08-31 12Z | 28.5°N 57.6°W | 30 | 1008 | TD |
| 2023-08-31 18Z | 28.6°N 57.0°W | 30 | 1007 | TD |
| 2023-09-01 00Z | 28.8°N 56.4°W | 30 | 1006 | TD |
| 2023-09-01 06Z | 28.8°N 55.7°W | 30 | 1006 | TD |
| 2023-09-01 12Z | 28.4°N 55.2°W | 30 | 1006 | TD |
| 2023-09-01 18Z | 27.9°N 54.8°W | 35 | 1005 | TS |
| 2023-09-02 00Z | 27.7°N 54.6°W | 35 | 1005 | TS |
| 2023-09-02 06Z | 27.6°N 54.4°W | 40 | 1003 | TS |
| 2023-09-02 12Z | 27.7°N 54.1°W | 45 | 999 | TS |
| 2023-09-02 18Z | 28.1°N 53.8°W | 45 | 999 | TS |
| 2023-09-03 00Z | 28.6°N 53.5°W | 50 | 998 | TS |
| 2023-09-03 06Z | 29.3°N 53.0°W | 50 | 998 | TS |
| 2023-09-03 12Z | 30.4°N 52.4°W | 50 | 998 | TS |
| 2023-09-03 18Z | 31.9°N 51.6°W | 45 | 999 | TS |
| 2023-09-04 00Z | 33.9°N 50.9°W | 45 | 1000 | TS |
| 2023-09-04 06Z | 36.5°N 50.7°W | 45 | 1000 | TS |
| 2023-09-04 12Z | 39.4°N 50.8°W | 40 | 1001 | TS |