The 1940 season

Unnamed tropical depression (1940)

Unnamed tropical depression peaked at unknown kt in the South Indian between May 9, 1940 and May 17, 1940.

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.

Open the live map with storms, cones and warnings

The storm

Basin
South Indian
Dates
May 9, 1940 to May 17, 1940
Peak strength
Tropical Depression
Landfall
No; closest approach 590 km (367 mi)
Accumulated cyclone energy
0.0
Identifier
1940130S09073

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
May 9, 00:008.5S 72.8ETropical storm
May 9, 06:008.6S 72.1ETropical storm
May 9, 12:008.7S 71.5ETropical storm
May 9, 18:008.9S 70.6ETropical storm
May 10, 00:009.1S 69.8ETropical storm
May 10, 06:009.2S 69.2ETropical storm
May 10, 12:009.3S 68.6ETropical storm
May 10, 18:009.5S 68.1ETropical storm
May 11, 00:009.6S 67.6ETropical storm
May 11, 06:009.7S 67.0ETropical storm
May 11, 12:009.9S 66.4ETropical storm
May 11, 18:0010.0S 65.8ETropical storm
May 12, 00:0010.2S 65.2ETropical storm
May 12, 06:0010.3S 64.7ETropical storm
May 12, 12:0010.4S 64.2ETropical storm
May 12, 18:0010.6S 63.8ETropical storm
May 13, 00:0010.7S 63.3ETropical storm
May 13, 06:0010.8S 62.7ETropical storm
May 13, 12:0010.9S 62.1ETropical storm
May 13, 18:0010.9S 61.6ETropical storm
May 14, 00:0011.0S 61.2ETropical storm
May 14, 06:0011.1S 60.7ETropical storm
May 14, 12:0011.2S 60.1ETropical storm
May 14, 18:0011.3S 59.7ETropical storm
May 15, 00:0011.3S 59.3ETropical storm
May 15, 06:0011.3S 58.7ETropical storm
May 15, 12:0011.4S 58.2ETropical storm
May 15, 18:0011.5S 57.7ETropical storm
May 16, 00:0011.6S 57.3ETropical storm
May 16, 06:0011.7S 56.7ETropical storm
May 16, 12:0011.9S 56.1ETropical storm
May 16, 18:0012.0S 55.7ETropical storm
May 17, 00:0012.2S 55.3ETropical storm

Other South Indian 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.