The 1865 season

Unnamed tropical depression (1865)

Unnamed tropical depression peaked at unknown kt in the South Indian between March 20, 1865 and March 24, 1865.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1865 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
South Indian
Dates
March 20, 1865 to March 24, 1865
Peak strength
Tropical Depression
Landfall
No; closest approach 1850 km (1150 mi)
Accumulated cyclone energy
0.0
Identifier
1865080S11085

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
Mar 20, 18:0011.2S 85.2ENot reported
Mar 21, 00:0011.2S 85.1ENot reported
Mar 21, 06:0011.4S 84.7ENot reported
Mar 21, 12:0011.8S 83.7ENot reported
Mar 21, 18:0012.5S 82.6ENot reported
Mar 22, 00:0013.4S 81.7ENot reported
Mar 22, 06:0014.2S 81.1ENot reported
Mar 22, 12:0014.7S 80.8ENot reported
Mar 22, 18:0015.2S 80.7ENot reported
Mar 23, 00:0015.7S 80.6ENot reported
Mar 23, 06:0016.3S 80.6ENot reported
Mar 23, 12:0016.8S 80.7ENot reported
Mar 23, 18:0017.3S 80.8ENot reported
Mar 24, 00:0017.8S 81.0ENot reported
Mar 24, 06:0018.3S 81.2ENot reported

Other South Indian storms of 1865

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.