Unnamed tropical storm (2011)
Unnamed tropical storm peaked at 40 kt in the North Atlantic between August 31, 2011 and September 3, 2011, with a lowest pressure of 1002 mb.
Track and intensity
The whole track of Unnamed tropical storm, 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
- North Atlantic
- Dates
- August 31, 2011 to September 3, 2011
- Peak strength
- Tropical Storm, 40 kt (46 mph)
- Lowest pressure
- 1002 mb (29.59 inHg)
- Landfall
- No; closest approach 379 km (235 mi)
- Accumulated cyclone energy
- 0.8
- Tropical-storm-force wind reached
- 60 nmi (111 km, 69 mi) from the center at its widest
- Eyewall radius at its peak
- 30 nmi (56 km, 35 mi)
- Overall size
- 120 nmi (222 km, 138 mi) to the outermost closed isobar
- Peak gust in the best track
- 45 kt (52 mph)
- Fastest the center moved
- 14 kt (16 mph)
- Identifier
- AL202011
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 31, 12:00 | 37.1N 64.3W | 25 kt | 1013 mb | Low |
| Aug 31, 18:00 | 37.1N 64.1W | 25 kt | 1013 mb | Low |
| Sep 1, 00:00 | 37.3N 63.9W | 25 kt | 1011 mb | Tropical depression |
| Sep 1, 06:00 | 37.4N 63.7W | 30 kt | 1008 mb | Tropical depression |
| Sep 1, 12:00 | 37.4N 63.7W | 40 kt | 1004 mb | Tropical storm |
| Sep 1, 18:00 | 37.4N 63.8W | 35 kt | 1005 mb | Tropical storm |
| Sep 2, 00:00 | 37.5N 63.8W | 35 kt | 1005 mb | Tropical storm |
| Sep 2, 06:00 | 37.8N 63.7W | 40 kt | 1002 mb | Tropical storm |
| Sep 2, 12:00 | 38.0N 62.8W | 40 kt | 1002 mb | Tropical storm |
| Sep 2, 18:00 | 39.0N 61.8W | 35 kt | 1003 mb | Tropical storm |
| Sep 3, 00:00 | 40.0N 60.7W | 30 kt | 1004 mb | Extratropical |
| Sep 3, 06:00 | 41.0N 59.9W | 30 kt | 1004 mb | Extratropical |
| Sep 3, 12:00 | 42.0N 59.2W | 30 kt | 1004 mb | Extratropical |
| Sep 3, 18:00 | 42.4N 57.8W | 30 kt | 1004 mb | Extratropical |
Other North Atlantic storms of 2011
- Tropical Storm ArleneNorth Atlantic · 2011
- Tropical Storm BretNorth Atlantic · 2011
- Tropical Storm CindyNorth Atlantic · 2011
- Tropical Storm DonNorth Atlantic · 2011
- Tropical Storm EmilyNorth Atlantic · 2011
- Tropical Storm FranklinNorth Atlantic · 2011
- Tropical Storm GertNorth Atlantic · 2011
- Tropical Storm HarveyNorth Atlantic · 2011
- Hurricane IreneNorth Atlantic · 2011 · 56 deaths
- Unnamed tropical depressionNorth Atlantic · 2011
- Tropical Storm JoseNorth Atlantic · 2011
- Hurricane KatiaNorth Atlantic · 2011
- Tropical Storm LeeNorth Atlantic · 2011
- Hurricane MariaNorth Atlantic · 2011
- Hurricane NateNorth Atlantic · 2011
- Hurricane OpheliaNorth Atlantic · 2011
- Hurricane PhilippeNorth Atlantic · 2011
- Hurricane RinaNorth Atlantic · 2011
- Tropical Storm SeanNorth Atlantic · 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.
The National Hurricane Center has published no tropical cyclone report for this storm.