Unnamed tropical storm (2012)
Unnamed tropical storm peaked at 45 kt in the South Pacific between December 20, 2011 and December 25, 2011, with a lowest pressure of 990 mb.
Track and intensity
The whole track of Unnamed tropical storm, colored by strength, with the other storms of the 2012 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
- December 20, 2011 to December 25, 2011
- Peak strength
- Tropical Storm, 45 kt (52 mph), ten-minute wind
- Lowest pressure
- 990 mb (29.23 inHg)
- Landfall
- No; closest approach 408 km (254 mi)
- Accumulated cyclone energy
- 0.1
- Identifier
- 2011354S14155
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Dec 20, 00:00 | 13.8S 155.4E | 20 kt | 1003 mb | Tropical storm |
| Dec 20, 06:00 | 13.9S 155.5E | 20 kt | 1002 mb | Tropical storm |
| Dec 20, 12:00 | 13.7S 155.2E | 25 kt | 1004 mb | Tropical storm |
| Dec 20, 18:00 | 14.3S 155.9E | 25 kt | 1000 mb | Tropical storm |
| Dec 21, 00:00 | 15.3S 156.6E | 30 kt | 1000 mb | Tropical storm |
| Dec 21, 06:00 | 16.3S 157.0E | 30 kt | 998 mb | Tropical storm |
| Dec 21, 12:00 | 17.0S 157.0E | 35 kt | 998 mb | Tropical storm |
| Dec 21, 18:00 | 17.9S 156.7E | 30 kt | 994 mb | Tropical storm |
| Dec 22, 00:00 | 18.5S 156.0E | 30 kt | 996 mb | Tropical storm |
| Dec 22, 06:00 | 19.1S 155.7E | 30 kt | 998 mb | Tropical storm |
| Dec 22, 12:00 | 19.5S 154.5E | 30 kt | 1000 mb | Tropical storm |
| Dec 22, 18:00 | 19.8S 154.5E | 30 kt | 998 mb | Tropical storm |
| Dec 23, 00:00 | 21.1S 155.3E | 30 kt | 998 mb | Tropical storm |
| Dec 23, 06:00 | 22.0S 156.0E | 35 kt | 996 mb | Subtropical storm |
| Dec 23, 12:00 | 22.0S 156.0E | 40 kt | 994 mb | Subtropical storm |
| Dec 23, 18:00 | 22.0S 156.2E | 45 kt | 992 mb | Subtropical storm |
| Dec 24, 00:00 | 22.0S 156.6E | 45 kt | 992 mb | Subtropical storm |
| Dec 24, 06:00 | 22.6S 157.3E | 45 kt | 992 mb | Subtropical storm |
| Dec 24, 12:00 | 23.7S 157.5E | 45 kt | 990 mb | Subtropical storm |
| Dec 24, 18:00 | 24.1S 158.0E | 45 kt | 990 mb | Subtropical storm |
| Dec 25, 00:00 | 24.3S 158.5E | 40 kt | 990 mb | Subtropical storm |
| Dec 25, 06:00 | 24.9S 159.1E | 35 kt | 992 mb | Subtropical storm |
| Dec 25, 12:00 | 25.5S 159.7E | 30 kt | 992 mb | Subtropical storm |
| Dec 25, 18:00 | 25.9S 160.5E | 30 kt | 992 mb | Subtropical storm |
Other South Pacific storms of 2012
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. This storm’s winds are ten-minute averages from its regional agency. They read about 12 percent lower than the one-minute winds US agencies use, so a Saffir-Simpson category is not given for it.
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.