Unnamed tropical depression (2011)
Unnamed tropical depression peaked at 30 kt in the Eastern Pacific between August 31, 2011 and September 2, 2011, with a lowest pressure of 1002 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
- August 31, 2011 to September 2, 2011
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1002 mb (29.59 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 0.0
- Eyewall radius at its peak
- 50 nmi (93 km, 58 mi)
- Overall size
- 120 nmi (222 km, 138 mi) to the outermost closed isobar
- Peak gust in the best track
- 40 kt (46 mph)
- Fastest the center moved
- 10 kt (12 mph)
- Identifier
- EP082011
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Landfall
| Time (UTC) | Where | Position | Wind | Pressure |
|---|---|---|---|---|
| Aug 31, 17:00 | La Orilla, Michoacan, Mexico, 62 km away | 18.1N 102.8W | 30 kt (35 mph) | 1002 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 |
|---|---|---|---|---|
| Aug 31, 00:00 | 16.5N 101.4W | 25 kt | 1004 mb | Low |
| Aug 31, 06:00 | 17.1N 101.9W | 30 kt | 1003 mb | Tropical depression |
| Aug 31, 12:00 | 17.7N 102.4W | 30 kt | 1002 mb | Tropical depression |
| Aug 31, 17:00 landfall | 18.1N 102.8W | 30 kt | 1002 mb | Tropical depression |
| Aug 31, 18:00 | 18.2N 102.9W | 25 kt | 1003 mb | Tropical depression |
| Sep 1, 00:00 | 18.6N 103.3W | 25 kt | 1004 mb | Low |
| Sep 1, 06:00 | 18.9N 103.9W | 25 kt | 1005 mb | Low |
| Sep 1, 12:00 | 19.1N 104.7W | 25 kt | 1006 mb | Low |
| Sep 1, 18:00 | 19.2N 105.6W | 20 kt | 1006 mb | Low |
| Sep 2, 00:00 | 19.3N 106.6W | 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
- Hurricane HilaryEastern Pacific · 2011
- Hurricane IrwinEastern Pacific · 2011
- Hurricane JovaEastern Pacific · 2011
- Unnamed tropical depressionEastern 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.