Unnamed tropical depression (2015)
Unnamed tropical depression peaked at 30 kt in the Western Pacific between December 27, 2015 and January 1, 2016, with a lowest pressure of 1001 mb.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2015 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
- Western Pacific
- Dates
- December 27, 2015 to January 1, 2016
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1001 mb (29.56 inHg)
- Landfall
- No; closest approach 1627 km (1011 mi)
- Accumulated cyclone energy
- 0.0
- Eyewall radius at its peak
- 45 nmi (83 km, 52 mi)
- Overall size
- 275 nmi (509 km, 316 mi) to the outermost closed isobar
- Peak gust in the best track
- 40 kt (46 mph)
- Fastest the center moved
- 9 kt (10 mph)
- Identifier
- CP092015
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 27, 18:00 | 0.6N 179.4E | 15 kt | 1010 mb | Disturbance |
| Dec 28, 00:00 | 0.6N 179.7W | 15 kt | 1010 mb | Disturbance |
| Dec 28, 06:00 | 0.5N 178.8W | 15 kt | 1003 mb | Disturbance |
| Dec 28, 12:00 | 0.4N 178.0W | 15 kt | 1003 mb | Disturbance |
| Dec 28, 18:00 | 0.4N 177.4W | 15 kt | 1002 mb | Disturbance |
| Dec 29, 00:00 | 0.5N 176.9W | 15 kt | 1002 mb | Disturbance |
| Dec 29, 06:00 | 0.6N 176.4W | 15 kt | 1002 mb | Disturbance |
| Dec 29, 12:00 | 0.7N 176.0W | 15 kt | 1003 mb | Disturbance |
| Dec 29, 18:00 | 0.8N 175.7W | 20 kt | 1002 mb | Disturbance |
| Dec 30, 00:00 | 0.9N 175.4W | 20 kt | 1002 mb | Disturbance |
| Dec 30, 06:00 | 1.3N 175.3W | 25 kt | 1002 mb | Disturbance |
| Dec 30, 12:00 | 1.7N 175.3W | 25 kt | 1002 mb | Disturbance |
| Dec 30, 18:00 | 2.0N 175.3W | 25 kt | 1003 mb | Disturbance |
| Dec 31, 00:00 | 2.2N 175.5W | 30 kt | 1001 mb | Tropical depression |
| Dec 31, 06:00 | 2.2N 175.7W | 30 kt | 1001 mb | Tropical depression |
| Dec 31, 12:00 | 2.2N 175.9W | 30 kt | 1001 mb | Tropical depression |
| Dec 31, 18:00 | 2.2N 176.2W | 30 kt | 1001 mb | Tropical depression |
| Jan 1, 00:00 | 2.2N 176.4W | 25 kt | 1003 mb | Low |
| Jan 1, 06:00 | 2.2N 176.6W | 25 kt | 1003 mb | Low |
| Jan 1, 12:00 | 2.2N 176.9W | 25 kt | 1003 mb | Disturbance |
Other Western Pacific storms of 2015
- Typhoon MekkhalaWestern Pacific · 2015 · 3 deaths
- Super Typhoon HigosWestern Pacific · 2015
- Tropical Storm BaviWestern Pacific · 2015
- Super Typhoon MaysakWestern Pacific · 2015
- Tropical Storm HaishenWestern Pacific · 2015
- Super Typhoon NoulWestern Pacific · 2015
- Super Typhoon DolphinWestern Pacific · 2015
- Tropical Storm KujiraWestern Pacific · 2015
- Typhoon Chan-HomWestern Pacific · 2015
- Typhoon LinfaWestern Pacific · 2015
- Super Typhoon NangkaWestern Pacific · 2015
- Unnamed tropical stormWestern Pacific · 2015
- Super Typhoon SoudelorWestern Pacific · 2015 · 59 deaths
- Unnamed tropical depressionWestern Pacific · 2015
- Tropical Storm MolaveWestern Pacific · 2015
- Typhoon GoniWestern Pacific · 2015
- Super Typhoon AtsaniWestern Pacific · 2015
- Tropical Storm EtauWestern Pacific · 2015
- Tropical Storm VamcoWestern Pacific · 2015
- Typhoon KrovanhWestern Pacific · 2015
- Super Typhoon DujuanWestern Pacific · 2015
- Typhoon MujigaeWestern Pacific · 2015
- Typhoon Choi-WanWestern Pacific · 2015
- Super Typhoon KoppuWestern Pacific · 2015
- Typhoon ChampiWestern Pacific · 2015
- Unnamed tropical stormWestern Pacific · 2015
- Typhoon In-FaWestern Pacific · 2015
- Typhoon MelorWestern Pacific · 2015
- Unnamed tropical depressionWestern Pacific · 2015
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.