Unnamed tropical depression (2016)
Unnamed tropical depression peaked at 30 kt in the South Pacific between December 21, 2015 and January 1, 2016, with a lowest pressure of 994 mb, and made landfall.
Radar
Reflectivity now over Unnamed tropical depression. Open it to see storms, cones and warnings on the map.























Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- South Pacific
- Dates
- December 21, 2015 to January 1, 2016
- Peak strength
- Tropical Depression, 30 kt (35 mph), ten-minute wind
- Lowest pressure
- 994 mb (29.35 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 0.0
- Identifier
- 2015355S16136
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 21, 06:00 | 15.6S 135.7E | 15 kt | 1003 mb | Tropical storm |
| Dec 21, 12:00 | 15.8S 136.2E | 15 kt | 1003 mb | Tropical storm |
| Dec 21, 18:00 | 16.3S 135.6E | 15 kt | 1005 mb | Tropical storm |
| Dec 22, 00:00 | 16.0S 133.8E | 10 kt | 1007 mb | Tropical storm |
| Dec 22, 06:00 | 16.0S 132.7E | 10 kt | 1002 mb | Tropical storm |
| Dec 22, 12:00 | 15.5S 132.3E | 10 kt | 1003 mb | Tropical storm |
| Dec 22, 18:00 | 15.5S 132.4E | 10 kt | 1001 mb | Tropical storm |
| Dec 23, 00:00 | 14.3S 131.8E | 10 kt | 1003 mb | Tropical storm |
| Dec 23, 06:00 | 13.6S 131.5E | 10 kt | 998 mb | Tropical storm |
| Dec 23, 12:00 | 13.3S 131.2E | 10 kt | 1001 mb | Tropical storm |
| Dec 23, 18:00 | 12.5S 131.2E | 10 kt | 996 mb | Tropical storm |
| Dec 24, 00:00 | 12.6S 131.7E | 30 kt | 999 mb | Tropical storm |
| Dec 24, 06:00 | 13.4S 132.3E | 25 kt | 995 mb | Tropical storm |
| Dec 24, 12:00 | 14.0S 132.0E | 25 kt | 997 mb | Tropical storm |
| Dec 24, 18:00 | 14.0S 131.1E | 25 kt | 994 mb | Tropical storm |
| Dec 25, 00:00 | 14.3S 131.0E | 25 kt | 995 mb | Tropical storm |
| Dec 25, 06:00 | 13.9S 131.5E | 25 kt | 996 mb | Tropical storm |
| Dec 25, 12:00 | 14.1S 132.3E | 25 kt | 997 mb | Tropical storm |
| Dec 25, 18:00 | 14.6S 132.5E | 25 kt | 996 mb | Tropical storm |
| Dec 26, 00:00 | 14.7S 132.7E | 25 kt | 996 mb | Tropical storm |
| Dec 26, 06:00 | 15.1S 133.3E | 25 kt | 996 mb | Tropical storm |
| Dec 26, 12:00 | 15.3S 133.5E | 25 kt | 996 mb | Tropical storm |
| Dec 26, 18:00 | 15.4S 134.0E | 25 kt | 996 mb | Tropical storm |
| Dec 27, 00:00 | 15.4S 134.6E | 15 kt | 999 mb | Tropical storm |
| Dec 27, 06:00 | 15.7S 135.6E | 15 kt | 996 mb | Tropical storm |
| Dec 27, 12:00 | 16.0S 135.8E | 15 kt | 998 mb | Tropical storm |
| Dec 27, 18:00 | 16.0S 136.1E | 15 kt | 997 mb | Tropical storm |
| Dec 28, 00:00 | 16.2S 136.1E | 15 kt | 998 mb | Tropical storm |
| Dec 28, 06:00 | 16.4S 136.0E | 15 kt | 996 mb | Tropical storm |
| Dec 28, 12:00 | 16.9S 135.9E | 20 kt | 996 mb | Tropical storm |
| Dec 28, 18:00 | 17.0S 135.9E | 20 kt | 995 mb | Tropical storm |
| Dec 29, 00:00 | 17.2S 136.0E | 20 kt | 996 mb | Tropical storm |
| Dec 29, 06:00 | 17.8S 136.3E | 20 kt | 997 mb | Tropical storm |
| Dec 29, 12:00 | 18.2S 137.0E | 20 kt | 998 mb | Tropical storm |
| Dec 29, 18:00 | 19.4S 136.8E | 20 kt | 997 mb | Tropical storm |
| Dec 30, 00:00 | 20.5S 136.5E | 20 kt | 997 mb | Tropical storm |
| Dec 30, 06:00 | 20.9S 136.5E | 20 kt | 997 mb | Tropical storm |
| Dec 30, 12:00 | 21.3S 136.5E | 20 kt | 998 mb | Tropical storm |
| Dec 30, 18:00 | 21.6S 136.5E | 20 kt | 998 mb | Tropical storm |
| Dec 31, 00:00 | 22.0S 136.5E | 20 kt | 999 mb | Tropical storm |
| Dec 31, 06:00 | 22.6S 137.0E | 20 kt | 999 mb | Tropical storm |
| Dec 31, 12:00 | 23.3S 137.5E | 20 kt | 1000 mb | Tropical storm |
| Dec 31, 18:00 | 23.9S 138.0E | 20 kt | 1001 mb | Tropical storm |
| Jan 1, 00:00 | 24.5S 138.5E | 20 kt | 1002 mb | Tropical storm |
Other South Pacific storms of 2016
- Unnamed tropical stormSouth Pacific · 2016
- Unnamed tropical stormSouth Pacific · 2016
- Tropical Storm TuniSouth Pacific · 2016
- Cyclone UlaSouth Pacific · 2016
- Cyclone VictorSouth Pacific · 2016
- Tropical Storm TatianaSouth Pacific · 2016
- Cyclone WinstonSouth Pacific · 2016
- Tropical Storm YaloSouth Pacific · 2016
- Unnamed tropical stormSouth Pacific · 2016
- Cyclone ZenaSouth Pacific · 2016
- Cyclone AmosSouth Pacific · 2016
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.