The 1940 season

Unnamed tropical depression (1940)

Unnamed tropical depression peaked at unknown kt in the Western Pacific between August 19, 1940 and August 28, 1940, and made landfall.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1940 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Western Pacific
Dates
August 19, 1940 to August 28, 1940
Peak strength
Tropical Depression
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
1940232N15139

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
Aug 19, 00:0015.8N 138.8ETropical storm
Aug 19, 06:0017.0N 138.3ETropical storm
Aug 19, 12:0018.3N 137.4ETropical storm
Aug 19, 18:0019.6N 136.5ETropical storm
Aug 20, 00:0020.6N 136.4ETropical storm
Aug 20, 06:0021.3N 137.0ETropical storm
Aug 20, 12:0022.2N 137.0ETropical storm
Aug 20, 18:0023.1N 136.2ETropical storm
Aug 21, 00:0023.7N 135.4ETropical storm
Aug 21, 06:0023.9N 134.8ETropical storm
Aug 21, 12:0024.1N 133.9ETropical storm
Aug 21, 18:0024.4N 132.8ETropical storm
Aug 22, 00:0024.6N 131.7ETropical storm
Aug 22, 06:0024.7N 130.9ETropical storm
Aug 22, 12:0025.1N 129.8ETropical storm
Aug 22, 18:0025.7N 128.7ETropical storm
Aug 23, 00:0026.2N 128.0ETropical storm
Aug 23, 06:0026.4N 127.8ETropical storm
Aug 23, 12:0026.9N 127.8ETropical storm
Aug 23, 18:0027.6N 127.8ETropical storm
Aug 24, 00:0028.3N 127.9ETropical storm
Aug 24, 06:0028.8N 128.2ETropical storm
Aug 24, 12:0029.4N 129.0ETropical storm
Aug 24, 18:0030.0N 130.3ETropical storm
Aug 25, 00:0030.4N 131.3ETropical storm
Aug 25, 06:0030.7N 132.2ETropical storm
Aug 25, 12:0031.3N 133.4ETropical storm
Aug 25, 18:0032.3N 135.1ETropical storm
Aug 26, 00:0032.9N 136.5ETropical storm
Aug 26, 06:0033.3N 137.7ETropical storm
Aug 26, 12:0034.7N 139.1ETropical storm
Aug 26, 18:0036.9N 140.9ETropical storm
Aug 27, 00:0038.7N 142.4ETropical storm
Aug 27, 06:0040.3N 143.5ETropical storm
Aug 27, 12:0043.4N 145.3ETropical storm
Aug 27, 18:0047.8N 147.9ETropical storm
Aug 28, 00:0051.1N 150.2ETropical storm
Aug 28, 06:0053.0N 151.7ETropical storm

Other Western Pacific storms of 1940

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.