Unnamed tropical depression (2011)
Unnamed tropical depression peaked at 30 kt in the Western Pacific between August 8, 2011 and August 15, 2011, with a lowest pressure of 1000 mb.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2011 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
- August 8, 2011 to August 15, 2011
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1000 mb (29.53 inHg)
- Landfall
- No; closest approach 382 km (237 mi)
- Accumulated cyclone energy
- 0.0
- Identifier
- WP132011
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Aug 8, 12:00 | 17.0N 139.4E | 20 kt | 1007 mb | Disturbance |
| Aug 8, 18:00 | 17.7N 138.7E | 20 kt | 1006 mb | Disturbance |
| Aug 9, 00:00 | 18.6N 138.3E | 20 kt | 1006 mb | Disturbance |
| Aug 9, 06:00 | 19.7N 138.0E | 20 kt | 1007 mb | Disturbance |
| Aug 9, 12:00 | 21.0N 137.6E | 20 kt | 1006 mb | Disturbance |
| Aug 9, 18:00 | 22.4N 137.2E | 25 kt | 1004 mb | Tropical depression |
| Aug 10, 00:00 | 23.6N 136.8E | 25 kt | 1004 mb | Tropical depression |
| Aug 10, 06:00 | 24.7N 136.6E | 30 kt | 1000 mb | Tropical depression |
| Aug 10, 12:00 | 25.5N 136.2E | 30 kt | 1000 mb | Tropical depression |
| Aug 10, 18:00 | 26.3N 136.1E | 30 kt | 1000 mb | Tropical depression |
| Aug 11, 00:00 | 26.8N 136.6E | 30 kt | 1000 mb | Tropical depression |
| Aug 11, 06:00 | 27.3N 137.2E | 30 kt | 1000 mb | Tropical depression |
| Aug 11, 12:00 | 28.0N 137.7E | 30 kt | 1000 mb | Tropical depression |
| Aug 11, 18:00 | 28.6N 138.3E | 25 kt | 1004 mb | Tropical depression |
| Aug 12, 00:00 | 28.8N 139.2E | 25 kt | 1004 mb | Tropical depression |
| Aug 12, 06:00 | 29.3N 140.0E | 25 kt | 1004 mb | Tropical depression |
| Aug 12, 12:00 | 30.1N 140.8E | 20 kt | 1005 mb | Disturbance |
| Aug 12, 18:00 | 30.8N 141.6E | 20 kt | 1007 mb | Tropical depression |
| Aug 13, 00:00 | 31.5N 142.1E | 25 kt | 1004 mb | Tropical depression |
| Aug 13, 06:00 | 32.1N 142.7E | 25 kt | 1004 mb | Tropical depression |
| Aug 13, 12:00 | 32.7N 143.3E | 20 kt | 1007 mb | Disturbance |
| Aug 13, 18:00 | 33.2N 143.9E | 20 kt | 1007 mb | Disturbance |
| Aug 14, 00:00 | 33.4N 144.7E | 20 kt | 1007 mb | Disturbance |
| Aug 14, 06:00 | 34.1N 145.4E | 20 kt | 1011 mb | Disturbance |
| Aug 14, 12:00 | 35.0N 146.4E | 20 kt | 1007 mb | Disturbance |
| Aug 14, 18:00 | 36.1N 147.4E | 15 kt | 1010 mb | Disturbance |
| Aug 15, 00:00 | 37.1N 148.7E | 15 kt | 1010 mb | Disturbance |
Other Western Pacific storms of 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Tropical Storm AereWestern Pacific · 2011
- Super Typhoon SongdaWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Tropical Depression SarikaWestern Pacific · 2011
- Tropical Storm HaimaWestern Pacific · 2011
- Tropical Storm MeariWestern Pacific · 2011
- Typhoon Ma-OnWestern Pacific · 2011
- Tropical Depression TokageWestern Pacific · 2011
- Typhoon Nock-TenWestern Pacific · 2011
- Super Typhoon MuifaWestern Pacific · 2011
- Typhoon MerbokWestern Pacific · 2011
- Super Typhoon NanmadolWestern Pacific · 2011
- Tropical Storm TalasWestern Pacific · 2011
- Tropical Storm NoruWestern Pacific · 2011
- Tropical Storm KulapWestern Pacific · 2011
- Typhoon RokeWestern Pacific · 2011
- Typhoon SoncaWestern Pacific · 2011
- Typhoon NesatWestern Pacific · 2011
- Tropical Storm HaitangWestern Pacific · 2011
- Super Typhoon NalgaeWestern Pacific · 2011
- Tropical Depression BanyanWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Unnamed tropical depressionWestern Pacific · 2011
- Tropical Storm WashiWestern Pacific · 2011
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.