Unnamed tropical depression (2015)
Unnamed tropical depression peaked at 30 kt in the North Atlantic between September 15, 2015 and September 19, 2015, with a lowest pressure of 1006 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
- North Atlantic
- Dates
- September 15, 2015 to September 19, 2015
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1006 mb (29.71 inHg)
- Landfall
- No; closest approach 1336 km (830 mi)
- Accumulated cyclone energy
- 0.0
- Eyewall radius at its peak
- 70 nmi (130 km, 81 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
- AL092015
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Sep 15, 00:00 | 11.5N 40.3W | 20 kt | 1011 mb | Low |
| Sep 15, 06:00 | 11.7N 41.1W | 20 kt | 1011 mb | Low |
| Sep 15, 12:00 | 11.9N 41.9W | 20 kt | 1011 mb | Low |
| Sep 15, 18:00 | 12.5N 42.4W | 20 kt | 1011 mb | Low |
| Sep 16, 00:00 | 13.3N 42.7W | 25 kt | 1010 mb | Low |
| Sep 16, 06:00 | 14.0N 43.1W | 25 kt | 1009 mb | Low |
| Sep 16, 12:00 | 14.5N 43.7W | 25 kt | 1009 mb | Tropical depression |
| Sep 16, 18:00 | 15.0N 44.4W | 25 kt | 1009 mb | Tropical depression |
| Sep 17, 00:00 | 15.3N 44.8W | 25 kt | 1008 mb | Tropical depression |
| Sep 17, 06:00 | 15.6N 45.0W | 30 kt | 1006 mb | Tropical depression |
| Sep 17, 12:00 | 15.9N 45.1W | 30 kt | 1006 mb | Tropical depression |
| Sep 17, 18:00 | 16.3N 45.1W | 25 kt | 1007 mb | Tropical depression |
| Sep 18, 00:00 | 16.8N 45.2W | 25 kt | 1007 mb | Tropical depression |
| Sep 18, 06:00 | 17.3N 45.8W | 25 kt | 1007 mb | Tropical depression |
| Sep 18, 12:00 | 17.6N 46.6W | 25 kt | 1007 mb | Tropical depression |
| Sep 18, 18:00 | 17.9N 47.3W | 25 kt | 1007 mb | Tropical depression |
| Sep 19, 00:00 | 18.1N 48.1W | 25 kt | 1008 mb | Tropical depression |
| Sep 19, 06:00 | 18.3N 48.8W | 25 kt | 1009 mb | Tropical depression |
| Sep 19, 12:00 | 18.5N 49.4W | 25 kt | 1009 mb | Tropical depression |
Other North Atlantic storms of 2015
- Tropical Storm AnaNorth Atlantic · 2015
- Tropical Storm BillNorth Atlantic · 2015
- Tropical Storm ClaudetteNorth Atlantic · 2015
- Hurricane DannyNorth Atlantic · 2015
- Tropical Storm ErikaNorth Atlantic · 2015 · 25 deaths
- Hurricane FredNorth Atlantic · 2015
- Tropical Storm GraceNorth Atlantic · 2015
- Tropical Storm HenriNorth Atlantic · 2015
- Tropical Storm IdaNorth Atlantic · 2015
- Hurricane JoaquinNorth Atlantic · 2015 · 34 deaths · $200 million
- Hurricane KateNorth Atlantic · 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.