Unnamed tropical depression (2011)
Unnamed tropical depression peaked at 30 kt in the Eastern Pacific between October 6, 2011 and October 13, 2011, with a lowest pressure of 1004 mb, and made landfall.
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
- Eastern Pacific
- Dates
- October 6, 2011 to October 13, 2011
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1004 mb (29.65 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 0.0
- Eyewall radius at its peak
- 60 nmi (111 km, 69 mi)
- Overall size
- 200 nmi (370 km, 230 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
- EP122011
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Landfall
| Time (UTC) | Where | Position | Wind | Pressure |
|---|---|---|---|---|
| Oct 12, 16:00 | Arriaga, Chiapas, Mexico, 22 km away | 16.2N 94.1W | 30 kt (35 mph) | 1005 mb |
Landfall points the US agencies flagged in the best track. The nearest town is named from the site’s gazetteer, not from the report.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Oct 6, 18:00 | 9.7N 91.7W | 20 kt | 1009 mb | Low |
| Oct 7, 00:00 | 10.1N 92.5W | 20 kt | 1008 mb | Low |
| Oct 7, 06:00 | 10.6N 93.3W | 20 kt | 1008 mb | Low |
| Oct 7, 12:00 | 10.9N 94.1W | 20 kt | 1008 mb | Low |
| Oct 7, 18:00 | 11.1N 95.0W | 20 kt | 1007 mb | Low |
| Oct 8, 00:00 | 11.2N 95.9W | 20 kt | 1007 mb | Low |
| Oct 8, 06:00 | 11.1N 96.4W | 20 kt | 1007 mb | Low |
| Oct 8, 12:00 | 10.9N 96.5W | 20 kt | 1007 mb | Low |
| Oct 8, 18:00 | 10.8N 96.3W | 20 kt | 1007 mb | Low |
| Oct 9, 00:00 | 10.8N 96.1W | 20 kt | 1006 mb | Low |
| Oct 9, 06:00 | 10.8N 95.9W | 20 kt | 1006 mb | Low |
| Oct 9, 12:00 | 10.9N 95.7W | 25 kt | 1006 mb | Low |
| Oct 9, 18:00 | 11.1N 95.5W | 25 kt | 1006 mb | Low |
| Oct 10, 00:00 | 11.2N 95.3W | 25 kt | 1006 mb | Low |
| Oct 10, 06:00 | 11.3N 95.0W | 25 kt | 1005 mb | Low |
| Oct 10, 12:00 | 11.5N 94.7W | 25 kt | 1005 mb | Low |
| Oct 10, 18:00 | 11.7N 94.5W | 25 kt | 1005 mb | Low |
| Oct 11, 00:00 | 11.9N 94.3W | 25 kt | 1005 mb | Low |
| Oct 11, 06:00 | 12.2N 94.1W | 25 kt | 1005 mb | Low |
| Oct 11, 12:00 | 12.6N 93.9W | 25 kt | 1005 mb | Low |
| Oct 11, 18:00 | 13.1N 93.8W | 30 kt | 1005 mb | Low |
| Oct 12, 00:00 | 13.9N 93.8W | 30 kt | 1004 mb | Tropical depression |
| Oct 12, 06:00 | 14.8N 93.9W | 30 kt | 1004 mb | Tropical depression |
| Oct 12, 12:00 | 15.7N 94.1W | 30 kt | 1005 mb | Tropical depression |
| Oct 12, 16:00 landfall | 16.2N 94.1W | 30 kt | 1005 mb | Tropical depression |
| Oct 12, 18:00 | 16.4N 94.1W | 30 kt | 1006 mb | Tropical depression |
| Oct 13, 00:00 | 16.9N 93.9W | 20 kt | 1007 mb | Low |
Other Eastern Pacific storms of 2011
- Hurricane AdrianEastern Pacific · 2011
- Hurricane BeatrizEastern Pacific · 2011
- Hurricane CalvinEastern Pacific · 2011
- Hurricane DoraEastern Pacific · 2011
- Hurricane EugeneEastern Pacific · 2011
- Tropical Storm FernandaEastern Pacific · 2011
- Hurricane GregEastern Pacific · 2011
- Unnamed tropical depressionEastern Pacific · 2011
- Hurricane HilaryEastern Pacific · 2011
- Hurricane IrwinEastern Pacific · 2011
- Hurricane JovaEastern Pacific · 2011
- Hurricane KennethEastern 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.