The 1940 season

Unnamed tropical depression (1940)

Unnamed tropical depression was tracked in the Western Pacific between July 4, 1940 and July 17, 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
July 4, 1940 to July 17, 1940
Peak strength
Tropical Depression
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
1940186N07156

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
Jul 4, 12:006.7N 155.6ENot reported
Jul 4, 18:006.9N 155.1ENot reported
Jul 5, 00:007.8N 153.7ENot reported
Jul 5, 06:009.2N 151.8ENot reported
Jul 5, 12:0010.1N 150.6ETropical storm
Jul 5, 18:0010.1N 150.2ETropical storm
Jul 6, 00:0010.1N 149.6ETropical storm
Jul 6, 06:0010.0N 148.8ETropical storm
Jul 6, 12:0010.3N 148.0ETropical storm
Jul 6, 18:0010.8N 147.1ETropical storm
Jul 7, 00:0010.8N 146.3ETropical storm
Jul 7, 06:0010.2N 145.5ETropical storm
Jul 7, 12:0010.1N 144.6ETropical storm
Jul 7, 18:0010.7N 143.8ETropical storm
Jul 8, 00:0011.3N 143.2ETropical storm
Jul 8, 06:0011.8N 142.9ETropical storm
Jul 8, 12:0012.2N 142.5ETropical storm
Jul 8, 18:0012.5N 141.9ETropical storm
Jul 9, 00:0013.0N 141.0ETropical storm
Jul 9, 06:0013.6N 140.0ETropical storm
Jul 9, 12:0014.2N 138.8ETropical storm
Jul 9, 18:0014.8N 137.6ETropical storm
Jul 10, 00:0015.2N 136.7ETropical storm
Jul 10, 06:0015.4N 135.9ETropical storm
Jul 10, 12:0015.6N 134.7ETropical storm
Jul 10, 18:0015.9N 133.2ETropical storm
Jul 11, 00:0016.3N 131.9ETropical storm
Jul 11, 06:0016.9N 130.8ETropical storm
Jul 11, 12:0018.1N 129.7ETropical storm
Jul 11, 18:0019.9N 128.5ETropical storm
Jul 12, 00:0021.2N 127.9ETropical storm
Jul 12, 06:0022.1N 128.0ETropical storm
Jul 12, 12:0023.2N 127.9ETropical storm
Jul 12, 18:0024.5N 127.6ETropical storm
Jul 13, 00:0025.5N 127.4ETropical storm
Jul 13, 06:0026.1N 127.1ETropical storm
Jul 13, 12:0027.0N 126.7ETropical storm
Jul 13, 18:0028.1N 126.3ETropical storm
Jul 14, 00:0029.2N 125.9ETropical storm
Jul 14, 06:0030.1N 125.8ETropical storm
Jul 14, 12:0031.3N 126.2ENot reported
Jul 14, 18:0032.8N 127.3ENot reported
Jul 15, 00:0034.3N 128.9ENot reported
Jul 15, 06:0036.0N 130.8ENot reported
Jul 15, 12:0038.1N 133.0ENot reported
Jul 15, 18:0040.6N 135.2ENot reported
Jul 16, 00:0042.5N 137.4ENot reported
Jul 16, 06:0043.6N 139.6ENot reported
Jul 16, 12:0044.6N 142.4ENot reported
Jul 16, 18:0045.5N 145.8ENot reported
Jul 17, 00:0046.3N 148.4ENot reported
Jul 17, 06:0047.1N 149.7ENot 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.