The 1921 season

Unnamed tropical depression (1921)

Unnamed tropical depression peaked at unknown kt in the Western Pacific between November 14, 1921 and November 17, 1921.

Radar

Reflectivity now over Unnamed tropical depression. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
Western Pacific
Dates
November 14, 1921 to November 17, 1921
Peak strength
Tropical Depression
Landfall
No; closest approach 77 km (48 mi)
Accumulated cyclone energy
0.0
Identifier
1921318N14120

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)PositionWindPressureStatus
Nov 14, 12:0014.2N 119.7ETropical storm
Nov 14, 18:0014.3N 119.5ETropical storm
Nov 15, 00:0014.3N 119.1ETropical storm
Nov 15, 06:0014.4N 118.4ETropical storm
Nov 15, 12:0014.4N 117.7ETropical storm
Nov 15, 18:0014.5N 116.9ETropical storm
Nov 16, 00:0014.5N 116.2ETropical storm
Nov 16, 06:0014.6N 115.5ETropical storm
Nov 16, 12:0014.7N 114.9ETropical storm
Nov 16, 18:0014.9N 114.2ETropical storm
Nov 17, 00:0015.2N 113.6ETropical storm
Nov 17, 06:0015.5N 113.0ETropical storm
Nov 17, 12:0015.8N 112.5ETropical storm
Nov 17, 18:0016.3N 112.0ETropical storm

Other Western Pacific storms of 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.