Unnamed tropical depression (1957)
Unnamed tropical depression peaked at 30 kt in the South Pacific between January 15, 1957 and January 22, 1957, with a lowest pressure of 998 mb.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1957 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- South Pacific
- Dates
- January 15, 1957 to January 22, 1957
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 998 mb (29.47 inHg)
- Landfall
- No; closest approach 56 km (35 mi)
- Accumulated cyclone energy
- 0.0
- Identifier
- SH131957
Deaths and damage
No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Jan 15, 18:00 | 11.3S 161.5E | 30 kt | Tropical storm | |
| Jan 16, 00:00 | 11.3S 161.4E | 20 kt | Tropical storm | |
| Jan 16, 06:00 | 11.3S 161.5E | 15 kt | Tropical storm | |
| Jan 16, 12:00 | 11.3S 161.8E | 15 kt | Tropical storm | |
| Jan 16, 18:00 | 11.3S 162.0E | 15 kt | Tropical storm | |
| Jan 17, 00:00 | 11.3S 162.3E | 15 kt | Tropical storm | |
| Jan 17, 06:00 | 11.3S 162.5E | 15 kt | Tropical storm | |
| Jan 17, 12:00 | 11.4S 162.7E | 15 kt | Tropical storm | |
| Jan 17, 18:00 | 11.6S 162.8E | 20 kt | Tropical storm | |
| Jan 18, 00:00 | 11.8S 162.9E | 20 kt | Tropical storm | |
| Jan 18, 06:00 | 12.0S 163.0E | 20 kt | Tropical storm | |
| Jan 18, 12:00 | 12.6S 163.0E | 15 kt | Tropical storm | |
| Jan 18, 18:00 | 13.1S 163.0E | 15 kt | Tropical storm | |
| Jan 19, 00:00 | 13.3S 162.8E | 15 kt | Tropical storm | |
| Jan 19, 06:00 | 13.6S 162.4E | 15 kt | Tropical storm | |
| Jan 19, 12:00 | 14.1S 162.0E | 15 kt | Tropical storm | |
| Jan 19, 18:00 | 14.7S 161.6E | 15 kt | Tropical storm | |
| Jan 20, 00:00 | 15.4S 161.3E | 15 kt | Tropical storm | |
| Jan 20, 06:00 | 16.2S 160.9E | 15 kt | Tropical storm | |
| Jan 20, 12:00 | 17.5S 160.1E | 25 kt | Tropical storm | |
| Jan 20, 18:00 | 18.6S 159.2E | 30 kt | Tropical storm | |
| Jan 21, 00:00 | 19.4S 158.5E | 30 kt | Tropical storm | |
| Jan 21, 06:00 | 20.1S 157.9E | 30 kt | Tropical storm | |
| Jan 21, 12:00 | 21.1S 157.7E | 30 kt | Tropical storm | |
| Jan 21, 18:00 | 21.9S 157.6E | 30 kt | Tropical storm | |
| Jan 22, 00:00 | 22.8S 157.7E | 25 kt | Tropical storm | |
| Jan 22, 06:00 | 23.6S 158.1E | 25 kt | Tropical storm | |
| Jan 22, 12:00 | 24.4S 158.9E | 20 kt | Tropical storm | |
| Jan 22, 18:00 | 25.0S 160.1E | Tropical storm |
Other South Pacific storms of 1957
- Unnamed tropical stormSouth Pacific · 1957
- Unnamed tropical stormSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
- Unnamed tropical depressionSouth Pacific · 1957
What this means
A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.
Sources
Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.