Unnamed tropical storm (1931)
Unnamed tropical storm peaked at 35 kt in the North Atlantic between August 16, 1931 and August 21, 1931.
Radar
Reflectivity now over Unnamed tropical storm. Open it to see storms, cones and warnings on the map.
Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- North Atlantic
- Dates
- August 16, 1931 to August 21, 1931
- Peak strength
- Tropical Storm, 35 kt (40 mph)
- Landfall
- No; closest approach 55 km (34 mi)
- Accumulated cyclone energy
- 0.5
- Identifier
- AL041931
Deaths and damage
No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Aug 16, 06:00 | 14.2N 59.3W | 25 kt | Tropical depression | |
| Aug 16, 12:00 | 15.0N 60.5W | 25 kt | Tropical depression | |
| Aug 16, 18:00 | 15.9N 61.6W | 30 kt | Tropical depression | |
| Aug 17, 00:00 | 16.8N 62.7W | 30 kt | Tropical depression | |
| Aug 17, 06:00 | 17.7N 63.8W | 35 kt | Tropical storm | |
| Aug 17, 12:00 | 18.5N 65.0W | 35 kt | Tropical storm | |
| Aug 17, 18:00 | 19.3N 66.2W | 35 kt | Tropical storm | |
| Aug 18, 00:00 | 20.1N 67.3W | 35 kt | Tropical storm | |
| Aug 18, 06:00 | 20.8N 68.4W | 30 kt | Tropical depression | |
| Aug 18, 12:00 | 21.5N 69.5W | 30 kt | Tropical depression | |
| Aug 18, 18:00 | 22.1N 70.4W | 30 kt | Tropical depression | |
| Aug 19, 00:00 | 22.6N 71.0W | 30 kt | Tropical depression | |
| Aug 19, 06:00 | 23.1N 71.4W | 30 kt | Tropical depression | |
| Aug 19, 12:00 | 23.5N 71.5W | 30 kt | Tropical depression | |
| Aug 19, 18:00 | 23.9N 71.5W | 30 kt | Tropical depression | |
| Aug 20, 00:00 | 24.3N 71.4W | 30 kt | Tropical depression | |
| Aug 20, 06:00 | 24.7N 71.2W | 30 kt | Tropical depression | |
| Aug 20, 12:00 | 25.0N 70.8W | 25 kt | Tropical depression | |
| Aug 20, 18:00 | 25.5N 70.3W | 25 kt | Tropical depression | |
| Aug 21, 00:00 | 26.3N 69.8W | 25 kt | Tropical depression | |
| Aug 21, 06:00 | 27.3N 69.3W | 25 kt | Tropical depression |
Other North Atlantic storms of 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed hurricaneNorth Atlantic · 1931 · 2,500 deaths
- Unnamed hurricaneNorth Atlantic · 1931
- Unnamed hurricaneNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
- Unnamed tropical stormNorth Atlantic · 1931
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.