Cyclone Dadafy (1983)

Cyclone Dadafy reached Category 1 in the South Indian between December 21, 1982 and January 1, 1983, with a lowest pressure of 976 mb.

Track and intensity

The whole track of Cyclone Dadafy, colored by strength, with the other storms of the 1983 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: December 21, 1982 to January 1, 1983
Peak strength: Category 1, 65 kt (75 mph)
Lowest pressure: 976 mb (28.82 inHg)
Landfall: No; closest approach 1204 km (748 mi)
Accumulated cyclone energy: 6.0
Identifier: SH061983

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)	Position	Wind	Pressure	Status
Dec 21, 00:00	8.9S 60.1E	20 kt		Tropical storm
Dec 21, 06:00	9.5S 61.3E	25 kt		Tropical storm
Dec 21, 12:00	10.0S 62.3E	25 kt		Tropical storm
Dec 21, 18:00	10.5S 63.2E	25 kt		Tropical storm
Dec 22, 00:00	11.0S 63.9E	25 kt		Tropical storm
Dec 22, 06:00	11.3S 64.4E	25 kt		Tropical storm
Dec 22, 12:00	11.5S 64.9E	25 kt		Tropical storm
Dec 22, 18:00	11.7S 65.5E	25 kt		Tropical storm
Dec 23, 00:00	11.9S 66.1E	25 kt		Tropical storm
Dec 23, 06:00	12.0S 66.6E	25 kt		Tropical storm
Dec 23, 12:00	12.1S 67.1E	25 kt		Tropical storm
Dec 23, 18:00	12.2S 67.7E	25 kt		Tropical storm
Dec 24, 00:00	12.4S 68.2E	25 kt		Tropical storm
Dec 24, 06:00	12.7S 68.7E	25 kt	997 mb	Tropical storm
Dec 24, 12:00	13.0S 69.0E	30 kt	997 mb	Tropical storm
Dec 24, 18:00	13.3S 69.2E	30 kt	997 mb	Tropical storm
Dec 25, 00:00	13.7S 69.4E	35 kt	991 mb	Tropical storm
Dec 25, 06:00	14.2S 69.8E	40 kt	991 mb	Tropical storm
Dec 25, 12:00	14.7S 70.1E	45 kt	991 mb	Tropical storm
Dec 25, 18:00	15.0S 70.4E	45 kt	984 mb	Tropical storm
Dec 26, 00:00	15.4S 70.7E	50 kt	976 mb	Tropical storm
Dec 26, 06:00	15.8S 71.1E	50 kt	976 mb	Tropical storm
Dec 26, 12:00	16.3S 71.5E	55 kt	976 mb	Tropical storm
Dec 26, 18:00	16.7S 71.8E	55 kt	976 mb	Tropical storm
Dec 27, 00:00	17.2S 72.1E	60 kt	976 mb	Tropical storm
Dec 27, 06:00	17.7S 72.4E	60 kt	976 mb	Tropical storm
Dec 27, 12:00	18.3S 72.6E	65 kt	976 mb	Tropical storm
Dec 27, 18:00	18.8S 72.7E	65 kt	976 mb	Tropical storm
Dec 28, 00:00	19.4S 72.7E	65 kt	976 mb	Tropical storm
Dec 28, 06:00	20.1S 72.7E	65 kt	976 mb	Tropical storm
Dec 28, 12:00	20.9S 72.7E	60 kt	976 mb	Tropical storm
Dec 28, 18:00	21.8S 72.5E	55 kt	976 mb	Tropical storm
Dec 29, 00:00	22.7S 72.1E	45 kt	976 mb	Tropical storm
Dec 29, 06:00	23.6S 71.5E	40 kt	976 mb	Tropical storm
Dec 29, 12:00	24.5S 70.9E	35 kt	984 mb	Mixed
Dec 29, 18:00	25.3S 71.1E	30 kt	991 mb	Mixed
Dec 30, 00:00	26.0S 72.1E	30 kt	991 mb	Mixed
Dec 30, 06:00	26.9S 72.7E	36 kt	991 mb	Mixed
Dec 30, 12:00	27.9S 72.9E	36 kt	991 mb	Mixed
Dec 30, 18:00	29.2S 73.1E	36 kt	991 mb	Mixed
Dec 31, 00:00	30.0S 73.5E	36 kt	991 mb	Mixed
Dec 31, 06:00	30.9S 74.4E	36 kt	991 mb	Mixed
Dec 31, 12:00	31.3S 75.8E			Mixed
Dec 31, 18:00	31.5S 77.3E			Mixed
Jan 1, 00:00	31.3S 79.0E			Mixed
Jan 1, 06:00	31.8S 80.4E			Mixed

Other South Indian storms of 1983

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.