The 1940 season

Unnamed tropical depression (1940)

Unnamed tropical depression peaked at unknown kt in the Western Pacific between August 24, 1940 and September 3, 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 24, 1940 to September 3, 1940
Peak strength
Tropical Depression
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
1940237N11150

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 24, 00:0011.5N 149.1ENot reported
Aug 24, 06:0012.4N 146.8ENot reported
Aug 24, 12:0012.8N 144.7ENot reported
Aug 24, 18:0012.9N 142.9ENot reported
Aug 25, 00:0013.0N 141.9ENot reported
Aug 25, 06:0013.2N 141.4ENot reported
Aug 25, 12:0013.6N 140.6ENot reported
Aug 25, 18:0014.0N 139.3ENot reported
Aug 26, 00:0014.6N 138.0ENot reported
Aug 26, 06:0015.1N 136.7ENot reported
Aug 26, 12:0015.6N 135.1ENot reported
Aug 26, 18:0016.0N 133.2ENot reported
Aug 27, 00:0016.2N 131.9ENot reported
Aug 27, 06:0016.2N 131.4ENot reported
Aug 27, 12:0016.5N 130.3ENot reported
Aug 27, 18:0016.9N 128.9ENot reported
Aug 28, 00:0017.3N 127.7ENot reported
Aug 28, 06:0017.8N 127.0ENot reported
Aug 28, 12:0018.3N 126.3ENot reported
Aug 28, 18:0018.8N 125.6ENot reported
Aug 29, 00:0019.4N 124.9ENot reported
Aug 29, 06:0020.1N 124.3ENot reported
Aug 29, 12:0020.9N 123.6ENot reported
Aug 29, 18:0021.8N 122.7ENot reported
Aug 30, 00:0022.5N 122.2ENot reported
Aug 30, 06:0023.0N 122.0ENot reported
Aug 30, 12:0023.7N 121.7ENot reported
Aug 30, 18:0024.6N 121.4ENot reported
Aug 31, 00:0025.1N 121.1ENot reported
Aug 31, 06:0025.3N 120.7ENot reported
Aug 31, 12:0025.8N 119.9ENot reported
Aug 31, 18:0026.7N 118.8ENot reported
Sep 1, 00:0027.3N 118.2ENot reported
Sep 1, 06:0027.7N 118.1ENot reported
Sep 1, 12:0028.8N 118.7ENot reported
Sep 1, 18:0030.6N 119.7ENot reported
Sep 2, 00:0031.7N 120.4ENot reported
Sep 2, 06:0032.0N 120.6ENot reported
Sep 2, 12:0032.6N 121.8ENot reported
Sep 2, 18:0033.3N 123.8ENot reported
Sep 3, 00:0033.6N 125.4ENot reported
Sep 3, 06:0033.5N 126.2ENot reported

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.