The 1939 season

Unnamed tropical depression (1939)

Unnamed tropical depression peaked at unknown kt in the Western Pacific between August 8, 1939 and August 15, 1939, and made landfall.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1939 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 8, 1939 to August 15, 1939
Peak strength
Tropical Depression
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
1939220N17145

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 8, 12:0017.2N 144.5ENot reported
Aug 8, 18:0017.4N 143.7ENot reported
Aug 9, 00:0017.7N 142.8ENot reported
Aug 9, 06:0018.0N 142.0ENot reported
Aug 9, 12:0018.1N 141.2ENot reported
Aug 9, 18:0018.2N 140.4ENot reported
Aug 10, 00:0018.2N 139.4ENot reported
Aug 10, 06:0018.2N 138.2ENot reported
Aug 10, 12:0018.2N 137.0ENot reported
Aug 10, 18:0018.2N 135.7ENot reported
Aug 11, 00:0018.2N 134.5ENot reported
Aug 11, 06:0018.4N 133.4ENot reported
Aug 11, 12:0018.7N 132.4ETropical storm
Aug 11, 18:0019.3N 131.5ETropical storm
Aug 12, 00:0019.9N 130.6ETropical storm
Aug 12, 06:0020.6N 129.9ETropical storm
Aug 12, 12:0021.2N 129.2ETropical storm
Aug 12, 18:0021.7N 128.4ETropical storm
Aug 13, 00:0022.2N 127.3ETropical storm
Aug 13, 06:0022.7N 125.9ETropical storm
Aug 13, 12:0023.3N 124.4ETropical storm
Aug 13, 18:0023.9N 122.8ETropical storm
Aug 14, 00:0024.3N 121.7ETropical storm
Aug 14, 06:0024.6N 121.1ETropical storm
Aug 14, 12:0024.8N 120.5ETropical storm
Aug 14, 18:0025.1N 119.8ETropical storm
Aug 15, 00:0025.4N 119.1ENot reported
Aug 15, 06:0025.5N 118.5ENot reported
Aug 15, 12:0025.5N 117.8ENot reported
Aug 15, 18:0025.6N 117.0ENot reported

Other Western Pacific storms of 1939

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.