Unnamed tropical depression (1921)
Unnamed tropical depression peaked at unknown kt in the Western Pacific between August 18, 1921 and August 18, 1921.
Radar
Reflectivity now over Unnamed tropical depression. 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
- Western Pacific
- Dates
- August 18, 1921 to August 18, 1921
- Peak strength
- Tropical Depression
- Landfall
- No; closest approach 235 km (146 mi)
- Accumulated cyclone energy
- 0.0
- Identifier
- 1921230N20117
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 18, 00:00 | 19.8N 116.6E | Tropical storm | ||
| Aug 18, 06:00 | 19.8N 115.7E | Tropical storm | ||
| Aug 18, 12:00 | 19.8N 114.8E | Tropical storm | ||
| Aug 18, 18:00 | 19.8N 113.9E | Tropical storm |
Other Western Pacific storms of 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
- Unnamed tropical depressionWestern Pacific · 1921
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.