2024 tropical cyclone season · Southern Hemisphere

Cyclone Unnamed SH09 SH09 · SH092024

Cyclone Unnamed SH09 was tracked in the Southern Hemisphere from 2024-01-28 to 2024-02-02 (5 days), peaking at 35 kt (TS) with a minimum pressure of 994 hPa. 51 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track.

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ATCF ID
SH092024
Basin
Southern Hemisphere
Tracked
2024-01-28 → 2024-02-02 (5 days)
Peak wind
35 kt · 18 m/s · TS
Minimum pressure
994 hPa
Archived forecasts
51
Sources
ECMWF · ECMWF ENS · GFS · GEFS
TDTSH1H2H3H4H5

Forecast track error (km)

Source24 h48 h72 h120 h
GFS189 (6)277 (2)——
GEFS195 (6)376 (2)——

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)PositionWind (kt)Pressure (hPa)Grade
2024-01-28 18Z15.2°S 62.7°E201007TD
2024-01-29 00Z15.4°S 63.1°E201006TD
2024-01-29 06Z15.6°S 63.4°E201003TD
2024-01-29 12Z16.6°S 64.0°E201002TD
2024-01-29 18Z17.2°S 64.0°E251001TD
2024-01-30 00Z17.8°S 64.1°E251000TD
2024-01-30 06Z18.3°S 64.4°E25999TD
2024-01-30 12Z18.8°S 64.8°E30997TD
2024-01-30 18Z19.2°S 65.2°E35995TS
2024-01-31 00Z19.7°S 65.6°E35995TS
2024-01-31 06Z19.9°S 66.1°E35994TS
2024-01-31 12Z20.0°S 66.2°E30996TD
2024-01-31 18Z19.6°S 66.5°E35994TS
2024-02-01 00Z19.2°S 66.4°E30996TD
2024-02-01 06Z18.8°S 66.0°E30994TD
2024-02-01 12Z18.5°S 66.2°E30996TD
2024-02-01 18Z18.7°S 67.2°E35995TS
2024-02-02 00Z20.0°S 67.9°E35995TS
2024-02-02 06Z20.6°S 68.8°E35995TS
2024-02-02 12Z21.2°S 69.9°E20999TD