Tropical Storm Diane (2020)

Tropical Storm Diane peaked at 55 kt in the South Indian between January 22, 2020 and January 29, 2020, with a lowest pressure of 985 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Diane, colored by strength, with the other storms of the 2020 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, 2020 to January 29, 2020
Peak strength: Tropical Storm, 55 kt (63 mph)
Lowest pressure: 985 mb (29.09 inHg)
Landfall: Yes
Accumulated cyclone energy: 2.0
Identifier: SH102020

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Track

Time (UTC)	Position	Wind	Pressure	Status
Jan 22, 06:00	16.9S 43.2E	30 kt	1000 mb	Disturbance
Jan 22, 12:00	16.6S 43.6E	20 kt	1007 mb	Disturbance
Jan 22, 18:00	16.8S 45.1E	20 kt	1002 mb	Disturbance
Jan 23, 00:00	17.2S 46.7E	20 kt	1005 mb	Disturbance
Jan 23, 06:00	17.7S 47.9E	20 kt	1005 mb	Disturbance
Jan 23, 12:00	18.1S 49.1E	25 kt	1004 mb	Tropical depression
Jan 23, 18:00	18.2S 50.4E	30 kt	1004 mb	Tropical depression
Jan 24, 00:00	18.4S 51.9E	30 kt	1002 mb	Tropical depression
Jan 24, 06:00	18.6S 53.4E	35 kt	1000 mb	Tropical storm
Jan 24, 12:00	19.1S 55.3E	35 kt	1001 mb	Tropical storm
Jan 24, 18:00	19.5S 57.0E	40 kt	1002 mb	Tropical storm
Jan 25, 00:00	20.1S 58.7E	50 kt	997 mb	Tropical storm
Jan 25, 06:00	20.7S 60.3E	50 kt	997 mb	Tropical storm
Jan 25, 12:00	21.4S 62.0E	50 kt	995 mb	Tropical storm
Jan 25, 18:00	22.0S 64.1E	55 kt	991 mb	Tropical storm
Jan 26, 00:00	22.9S 66.4E	55 kt	991 mb	Tropical storm
Jan 26, 06:00	24.0S 67.7E	50 kt	990 mb	Tropical storm
Jan 26, 12:00	24.0S 68.8E	45 kt	988 mb	Subtropical storm
Jan 26, 18:00	23.8S 70.0E	40 kt	987 mb	Subtropical storm
Jan 27, 00:00	24.2S 71.2E	40 kt	987 mb	Subtropical storm
Jan 27, 06:00	25.2S 71.4E	40 kt	986 mb	Subtropical storm
Jan 27, 12:00	25.9S 71.5E	40 kt	985 mb	Subtropical storm
Jan 27, 18:00	26.9S 71.1E	40 kt	985 mb	Subtropical storm
Jan 28, 00:00	27.9S 70.3E	40 kt	985 mb	Subtropical storm
Jan 28, 06:00	28.7S 69.2E	40 kt	992 mb	Subtropical storm
Jan 28, 12:00	29.6S 68.1E	40 kt	993 mb	Subtropical storm
Jan 28, 18:00	30.3S 67.2E	35 kt	995 mb	Subtropical storm
Jan 29, 00:00	31.3S 66.5E	35 kt	994 mb	Subtropical storm
Jan 29, 06:00	32.6S 66.3E	35 kt	996 mb	Subtropical storm
Jan 29, 12:00	34.3S 66.1E	35 kt	997 mb	Subtropical storm
Jan 29, 18:00	35.5S 65.5E	35 kt	996 mb	Subtropical storm

Other South Indian storms of 2020

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.