The 1970 season

Tropical Depression Hermine (1970)

Tropical Depression Hermine peaked at unknown kt in the South Indian between January 22, 1970 and January 27, 1970.

Track and intensity

The whole track of Tropical Depression Hermine, colored by strength, with the other storms of the 1970 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
January 22, 1970 to January 27, 1970
Peak strength
Tropical Depression
Landfall
No; closest approach 68 km (42 mi)
Accumulated cyclone energy
0.0
Identifier
SH121970

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
Jan 22, 00:0011.4S 64.3ETropical storm
Jan 22, 06:0012.5S 63.0ETropical storm
Jan 22, 12:0013.6S 61.8ETropical storm
Jan 22, 18:0014.6S 60.6ETropical storm
Jan 23, 00:0015.5S 59.5ETropical storm
Jan 23, 06:0016.5S 58.3ETropical storm
Jan 23, 12:0017.5S 57.1ETropical storm
Jan 23, 18:0018.0S 55.8ETropical storm
Jan 24, 00:0018.3S 54.4ETropical storm
Jan 24, 06:0018.5S 53.6ETropical storm
Jan 24, 12:0018.8S 53.3ETropical storm
Jan 24, 18:0019.3S 53.3ETropical storm
Jan 25, 00:0020.1S 53.7ETropical storm
Jan 25, 06:0021.2S 54.5ETropical storm
Jan 25, 12:0022.5S 55.2ETropical storm
Jan 25, 18:0023.8S 55.8ETropical storm
Jan 26, 00:0025.5S 56.4ETropical storm
Jan 26, 06:0027.7S 57.1ETropical storm
Jan 26, 12:0029.9S 57.8ETropical storm
Jan 26, 18:0032.0S 58.4ETropical storm
Jan 27, 00:0034.0S 58.8ETropical storm

Other South Indian storms of 1970

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.