Unnamed tropical depression (2004)
Unnamed tropical depression peaked at 30 kt in the North Atlantic between September 7, 2004 and September 10, 2004, with a lowest pressure of 1009 mb.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2004 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 7, 2004 to September 10, 2004
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1009 mb (29.80 inHg)
- Landfall
- No; closest approach 1428 km (887 mi)
- Accumulated cyclone energy
- 0.0
- Eyewall radius at its peak
- 40 nmi (74 km, 46 mi)
- Overall size
- 150 nmi (278 km, 173 mi) to the outermost closed isobar
- Peak gust in the best track
- 40 kt (46 mph)
- Fastest the center moved
- 17 kt (20 mph)
- Identifier
- AL102004
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 7, 12:00 | 31.5N 39.7W | 25 kt | 1009 mb | Tropical depression |
| Sep 7, 18:00 | 31.7N 39.3W | 25 kt | 1009 mb | Tropical depression |
| Sep 8, 00:00 | 32.0N 38.7W | 25 kt | 1010 mb | Tropical depression |
| Sep 8, 06:00 | 32.3N 38.1W | 25 kt | 1011 mb | Tropical depression |
| Sep 8, 12:00 | 32.8N 37.1W | 25 kt | 1012 mb | Tropical depression |
| Sep 8, 18:00 | 33.8N 36.0W | 25 kt | 1012 mb | Tropical depression |
| Sep 9, 00:00 | 35.3N 35.0W | 30 kt | 1012 mb | Tropical depression |
| Sep 9, 06:00 | 36.2N 34.3W | 30 kt | 1013 mb | Tropical depression |
| Sep 9, 12:00 | 36.5N 33.6W | 30 kt | 1013 mb | Low |
| Sep 9, 18:00 | 36.0N 33.4W | 30 kt | 1014 mb | Low |
| Sep 10, 00:00 | 35.7N 32.3W | 30 kt | 1014 mb | Low |
| Sep 10, 06:00 | 35.5N 31.0W | 25 kt | 1015 mb | Low |
| Sep 10, 12:00 | 35.3N 29.5W | 20 kt | 1016 mb | Low |
Other North Atlantic storms of 2004
- Hurricane AlexNorth Atlantic · 2004
- Tropical Storm BonnieNorth Atlantic · 2004
- Hurricane CharleyNorth Atlantic · 2004
- Hurricane DanielleNorth Atlantic · 2004
- Tropical Storm EarlNorth Atlantic · 2004
- Hurricane FrancesNorth Atlantic · 2004
- Hurricane GastonNorth Atlantic · 2004
- Tropical Storm HermineNorth Atlantic · 2004
- Hurricane IvanNorth Atlantic · 2004
- Hurricane JeanneNorth Atlantic · 2004
- Hurricane KarlNorth Atlantic · 2004
- Hurricane LisaNorth Atlantic · 2004
- Tropical Storm MatthewNorth Atlantic · 2004
- Tropical Storm NicoleNorth Atlantic · 2004
- Tropical Storm OttoNorth Atlantic · 2004
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.