The 1975 season

Tropical Storm Wilma (1975)

Tropical Storm Wilma peaked at 60 kt in the South Indian between March 10, 1975 and March 16, 1975, with a lowest pressure of 980 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Wilma, colored by strength, with the other storms of the 1975 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 10, 1975 to March 16, 1975
Peak strength
Tropical Storm, 60 kt (69 mph)
Lowest pressure
980 mb (28.94 inHg)
Landfall
Yes
Accumulated cyclone energy
1.0
Identifier
SH251975

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 10, 12:0010.5S 133.8E15 ktTropical storm
Mar 10, 18:0010.5S 134.1E15 kt998 mbTropical storm
Mar 11, 00:0010.5S 133.7E15 kt995 mbTropical storm
Mar 11, 06:0010.5S 133.0E20 kt995 mbTropical storm
Mar 11, 12:0010.5S 132.5E20 kt990 mbTropical storm
Mar 11, 18:0010.6S 132.0E15 kt985 mbTropical storm
Mar 12, 00:0010.6S 131.6E15 kt985 mbTropical storm
Mar 12, 06:0010.8S 131.1E20 kt985 mbTropical storm
Mar 12, 12:0011.0S 130.5E20 kt990 mbTropical storm
Mar 12, 18:0011.3S 130.0E20 kt990 mbTropical storm
Mar 13, 00:0011.7S 129.5E20 kt990 mbTropical storm
Mar 13, 06:0012.2S 129.2E20 kt990 mbTropical storm
Mar 13, 12:0012.6S 128.8E25 kt990 mbTropical storm
Mar 13, 18:0013.1S 128.5E40 kt985 mbTropical storm
Mar 14, 00:0013.7S 128.3E50 kt985 mbTropical storm
Mar 14, 06:0014.4S 128.2E60 kt980 mbTropical storm
Mar 14, 12:0015.2S 128.0E50 kt980 mbTropical storm
Mar 14, 18:0015.9S 128.1ETropical storm
Mar 15, 00:0016.5S 128.3E25 kt994 mbNot reported
Mar 15, 06:0017.2S 128.6ENot reported
Mar 15, 12:0018.0S 128.9ENot reported
Mar 15, 18:0018.9S 129.3ENot reported
Mar 16, 00:0019.8S 129.7E15 kt1000 mbNot reported

Other South Indian storms of 1975

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.