The 1984 season

Cyclone Oscar (1984)

Cyclone Oscar reached Category 1 in the South Indian between October 22, 1983 and November 1, 1983, with a lowest pressure of 968 mb.

Track and intensity

The whole track of Cyclone Oscar, colored by strength, with the other storms of the 1984 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
October 22, 1983 to November 1, 1983
Peak strength
Category 1, 70 kt (81 mph)
Lowest pressure
968 mb (28.59 inHg)
Landfall
No; closest approach 1319 km (820 mi)
Accumulated cyclone energy
7.0
Identifier
SH021984

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
Oct 22, 00:007.6S 88.6E25 kt1002 mbTropical storm
Oct 22, 06:007.7S 88.4E25 kt1002 mbTropical storm
Oct 22, 12:007.8S 88.2E25 kt1002 mbTropical storm
Oct 22, 18:008.1S 88.1E25 kt1002 mbTropical storm
Oct 23, 00:008.4S 88.2E25 kt1000 mbTropical storm
Oct 23, 06:008.8S 88.3E25 kt1000 mbTropical storm
Oct 23, 12:009.0S 88.2E25 kt1002 mbTropical storm
Oct 23, 18:009.0S 88.1E25 kt1001 mbTropical storm
Oct 24, 00:009.0S 87.8E30 kt998 mbTropical storm
Oct 24, 06:009.0S 87.2E40 kt994 mbTropical storm
Oct 24, 12:009.1S 86.3E40 kt990 mbTropical storm
Oct 24, 18:0011.2S 86.0E30 kt990 mbTropical storm
Oct 25, 00:0011.5S 87.7E30 kt990 mbTropical storm
Oct 25, 06:0011.8S 88.4E35 kt990 mbTropical storm
Oct 25, 12:0012.0S 88.1E35 kt990 mbTropical storm
Oct 25, 18:0012.2S 87.8E40 kt990 mbTropical storm
Oct 26, 00:0012.6S 87.8E40 kt990 mbTropical storm
Oct 26, 06:0013.1S 87.7E45 kt986 mbTropical storm
Oct 26, 12:0013.4S 87.3E50 kt986 mbTropical storm
Oct 26, 18:0013.6S 86.9E55 kt986 mbTropical storm
Oct 27, 00:0013.7S 86.7E55 kt986 mbTropical storm
Oct 27, 06:0013.8S 86.5E60 kt983 mbTropical storm
Oct 27, 12:0014.1S 86.4E60 kt980 mbTropical storm
Oct 27, 18:0014.5S 86.6E65 kt974 mbTropical storm
Oct 28, 00:0015.0S 87.2E65 kt970 mbTropical storm
Oct 28, 06:0015.6S 88.0E65 kt970 mbTropical storm
Oct 28, 12:0016.4S 88.9E65 kt968 mbTropical storm
Oct 28, 18:0017.2S 89.7E70 kt968 mbTropical storm
Oct 29, 00:0017.8S 90.2E70 kt972 mbTropical storm
Oct 29, 06:0018.5S 90.7E65 kt972 mbTropical storm
Oct 29, 12:0019.5S 91.4E55 kt986 mbTropical storm
Oct 29, 18:0020.7S 92.1E50 kt998 mbTropical storm
Oct 30, 00:0021.9S 92.5E50 kt1002 mbTropical storm
Oct 30, 06:0023.1S 92.9E45 kt1004 mbTropical storm
Oct 30, 12:0024.2S 94.1E40 kt1006 mbTropical storm
Oct 30, 18:0025.2S 95.5E35 kt1008 mbTropical storm
Oct 31, 00:0026.1S 96.4E30 kt1012 mbTropical storm
Oct 31, 06:0026.8S 97.2E20 kt1012 mbTropical storm
Oct 31, 12:0029.3S 97.7E20 kt1014 mbTropical storm
Oct 31, 18:0029.3S 98.4E20 kt1014 mbTropical storm
Nov 1, 00:0029.6S 99.0E20 kt1014 mbTropical storm
Nov 1, 06:0029.9S 99.7ETropical storm
Nov 1, 12:0030.2S 100.4ETropical storm

Other South Indian storms of 1984

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.