Unnamed tropical depression (2018)
Unnamed tropical depression peaked at 30 kt in the North Atlantic between September 21, 2018 and September 22, 2018, with a lowest pressure of 1007 mb.
Track and intensity
The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2018 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 21, 2018 to September 22, 2018
- Peak strength
- Tropical Depression, 30 kt (35 mph)
- Lowest pressure
- 1007 mb (29.74 inHg)
- Landfall
- No; closest approach 800 km (497 mi)
- Accumulated cyclone energy
- 0.0
- Eyewall radius at its peak
- 20 nmi (37 km, 23 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
- 8 kt (9 mph)
- Identifier
- AL112018
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 21, 18:00 | 12.9N 52.5W | 30 kt | 1008 mb | Tropical depression |
| Sep 22, 00:00 | 13.0N 53.2W | 30 kt | 1007 mb | Tropical depression |
| Sep 22, 06:00 | 13.0N 53.4W | 30 kt | 1007 mb | Tropical depression |
| Sep 22, 12:00 | 13.2N 53.7W | 25 kt | 1008 mb | Tropical depression |
| Sep 22, 18:00 | 13.4N 53.9W | 25 kt | 1008 mb | Tropical depression |
Other North Atlantic storms of 2018
- Tropical Storm AlbertoNorth Atlantic · 2018
- Hurricane BerylNorth Atlantic · 2018
- Hurricane ChrisNorth Atlantic · 2018
- Tropical Storm DebbyNorth Atlantic · 2018
- Tropical Storm ErnestoNorth Atlantic · 2018
- Hurricane FlorenceNorth Atlantic · 2018 · 32 deaths
- Tropical Storm GordonNorth Atlantic · 2018
- Hurricane IsaacNorth Atlantic · 2018
- Hurricane HeleneNorth Atlantic · 2018
- Tropical Storm JoyceNorth Atlantic · 2018
- Hurricane LeslieNorth Atlantic · 2018 · 11 deaths
- Tropical Storm KirkNorth Atlantic · 2018
- Hurricane MichaelNorth Atlantic · 2018 · 72 deaths · $15 billion
- Tropical Storm NadineNorth Atlantic · 2018
- Hurricane OscarNorth Atlantic · 2018
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.