Unnamed tropical depression (1921)
Unnamed tropical depression peaked at unknown kt in the South Pacific between January 7, 1921 and January 15, 1921, and made landfall.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1921 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 7, 1921 to January 15, 1921
- Peak strength
- Tropical Depression
- Landfall
- Yes
- Accumulated cyclone energy
- 0.0
- Identifier
- 1921008S12139
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 7, 12:00 | 12.2S 139.2E | Not reported | ||
| Jan 7, 18:00 | 12.2S 139.2E | Not reported | ||
| Jan 8, 00:00 | 12.5S 138.7E | Not reported | ||
| Jan 8, 06:00 | 12.8S 137.8E | Not reported | ||
| Jan 8, 12:00 | 13.1S 136.9E | Not reported | ||
| Jan 8, 18:00 | 13.5S 136.0E | Not reported | ||
| Jan 9, 00:00 | 13.8S 135.1E | Not reported | ||
| Jan 9, 06:00 | 14.0S 134.4E | Not reported | ||
| Jan 9, 12:00 | 14.1S 133.9E | Not reported | ||
| Jan 9, 18:00 | 14.2S 133.5E | Not reported | ||
| Jan 10, 00:00 | 14.3S 133.0E | Not reported | ||
| Jan 10, 06:00 | 14.5S 132.4E | Not reported | ||
| Jan 10, 12:00 | 14.7S 131.8E | Not reported | ||
| Jan 10, 18:00 | 15.0S 131.3E | Not reported | ||
| Jan 11, 00:00 | 15.3S 131.0E | Not reported | ||
| Jan 11, 06:00 | 15.6S 131.0E | Not reported | ||
| Jan 11, 12:00 | 16.0S 131.1E | Not reported | ||
| Jan 11, 18:00 | 16.2S 131.2E | Not reported | ||
| Jan 12, 00:00 | 16.3S 131.4E | Not reported | ||
| Jan 12, 06:00 | 16.8S 132.6E | Not reported | ||
| Jan 12, 12:00 | 17.3S 134.2E | Not reported | ||
| Jan 12, 18:00 | 17.7S 135.5E | Not reported | ||
| Jan 13, 00:00 | 18.0S 136.8E | Not reported | ||
| Jan 13, 06:00 | 18.4S 138.0E | Not reported | ||
| Jan 13, 12:00 | 18.8S 139.2E | Not reported | ||
| Jan 13, 18:00 | 19.1S 140.4E | Not reported | ||
| Jan 14, 00:00 | 19.2S 141.5E | Not reported | ||
| Jan 14, 06:00 | 19.3S 142.7E | Not reported | ||
| Jan 14, 12:00 | 19.3S 143.7E | Not reported | ||
| Jan 14, 18:00 | 19.3S 144.6E | Not reported | ||
| Jan 15, 00:00 | 19.3S 145.3E | Not reported |
Other South Pacific storms of 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
- Unnamed tropical depressionSouth Pacific · 1921
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.