2023 tropical cyclone season · Southern Hemisphere
Cyclone Judy Judy · SH152023
Cyclone Judy was tracked in the Southern Hemisphere from 2023-02-24 to 2023-03-05 (10 days), peaking at 110 kt (H3) with a minimum pressure of 941 hPa. 98 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF, 203 km off on average.
- ATCF ID
- SH152023
- Basin
- Southern Hemisphere
- Tracked
- 2023-02-24 → 2023-03-05 (10 days)
- Peak wind
- 110 kt · 57 m/s · H3
- Minimum pressure
- 941 hPa
- Archived forecasts
- 98
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 100 (21) | 203 (17) | 350 (12) | 211 (2) |
| ECMWF ENS | 124 (21) | 272 (17) | 466 (13) | 340 (3) |
| GFS | 81 (22) | 214 (18) | 416 (14) | 888 (6) |
| GEFS | 100 (22) | 231 (18) | 443 (14) | 821 (6) |
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 |
|---|---|---|---|---|
| 2023-02-24 00Z | 14.4°S 175.6°W | 15 | 1010 | TD |
| 2023-02-24 06Z | 13.8°S 176.5°W | 20 | 1007 | TD |
| 2023-02-24 12Z | 13.3°S 177.5°W | 20 | 1001 | TD |
| 2023-02-24 18Z | 13.1°S 178.6°W | 20 | 999 | TD |
| 2023-02-25 00Z | 13.0°S 179.7°W | 20 | 999 | TD |
| 2023-02-25 06Z | 12.9°S 179.4°E | 25 | 997 | TD |
| 2023-02-25 12Z | 13.0°S 178.4°E | 25 | 997 | TD |
| 2023-02-25 18Z | 13.0°S 177.6°E | 25 | 996 | TD |
| 2023-02-26 00Z | 12.9°S 176.3°E | 25 | 998 | TD |
| 2023-02-26 06Z | 12.7°S 175.0°E | 25 | 997 | TD |
| 2023-02-26 12Z | 12.5°S 173.1°E | 30 | 995 | TD |
| 2023-02-26 18Z | 12.3°S 171.7°E | 30 | 995 | TD |
| 2023-02-27 00Z | 12.5°S 170.5°E | 35 | 994 | TS |
| 2023-02-27 06Z | 12.7°S 169.8°E | 40 | 993 | TS |
| 2023-02-27 12Z | 12.9°S 169.4°E | 50 | 993 | TS |
| 2023-02-27 18Z | 13.3°S 168.8°E | 55 | 990 | TS |
| 2023-02-28 00Z | 13.7°S 168.5°E | 60 | 985 | TS |
| 2023-02-28 06Z | 14.5°S 168.3°E | 65 | 976 | H1 |
| 2023-02-28 12Z | 15.5°S 168.1°E | 75 | 972 | H1 |
| 2023-02-28 18Z | 17.0°S 168.2°E | 85 | 964 | H2 |
| 2023-03-01 00Z | 18.2°S 168.6°E | 100 | 952 | H3 |
| 2023-03-01 06Z | 19.4°S 169.3°E | 110 | 941 | H3 |
| 2023-03-01 12Z | 20.1°S 170.5°E | 105 | 947 | H3 |
| 2023-03-01 18Z | 21.2°S 171.4°E | 90 | 957 | H2 |
| 2023-03-02 00Z | 22.4°S 172.4°E | 85 | 962 | H2 |
| 2023-03-02 06Z | 23.2°S 173.3°E | 80 | 966 | H1 |
| 2023-03-02 12Z | 24.3°S 175.0°E | 80 | 967 | H1 |
| 2023-03-02 18Z | 24.8°S 175.7°E | 80 | 966 | H1 |
| 2023-03-03 00Z | 25.6°S 177.4°E | 70 | 972 | H1 |
| 2023-03-03 06Z | 26.2°S 179.4°E | 60 | 978 | TS |
| 2023-03-03 12Z | 26.8°S 177.6°W | 60 | 979 | TS |
| 2023-03-03 18Z | 27.2°S 174.5°W | 60 | 980 | TS |
| 2023-03-04 00Z | 27.7°S 172.6°W | 55 | 983 | TS |
| 2023-03-04 06Z | 28.1°S 170.5°W | 45 | 987 | TS |
| 2023-03-04 12Z | 28.3°S 167.5°W | 40 | 987 | TS |
| 2023-03-04 18Z | 28.5°S 165.1°W | 40 | 989 | TS |
| 2023-03-05 00Z | 29.3°S 161.5°W | 35 | 993 | TS |
| 2023-03-05 06Z | 29.6°S 159.5°W | 35 | 990 | TS |