Cyclone Belna (2020)

Cyclone Belna reached Category 3 in the South Indian between December 2, 2019 and December 11, 2019, with a lowest pressure of 955 mb, and made landfall.

Track and intensity

The whole track of Cyclone Belna, 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: December 2, 2019 to December 11, 2019
Peak strength: Category 3, 105 kt (121 mph)
Lowest pressure: 955 mb (28.20 inHg)
Landfall: Yes
Accumulated cyclone energy: 14.0
Tropical-storm-force wind reached: 85 nmi (157 km, 98 mi) from the center at its widest
Hurricane-force wind reached: 20 nmi (37 km, 23 mi) from the center at its widest
Eyewall radius at its peak: 5 nmi (9 km, 6 mi)
Overall size: 210 nmi (389 km, 242 mi) to the outermost closed isobar
Fastest the center moved: 11 kt (13 mph)
Identifier: SH022020

Deaths and damage

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

Track

Time (UTC)	Position	Wind	Pressure	Status
Dec 2, 06:00	5.7S 55.3E	23 kt	1005 mb	Disturbance
Dec 2, 12:00	5.9S 54.9E	23 kt	1005 mb	Disturbance
Dec 2, 18:00	6.0S 54.5E	23 kt	1005 mb	Disturbance
Dec 3, 00:00	6.2S 54.0E	22 kt	1005 mb	Disturbance
Dec 3, 06:00	6.2S 52.9E	20 kt	1007 mb	Disturbance
Dec 3, 12:00	6.2S 52.7E	20 kt	1007 mb	Disturbance
Dec 3, 18:00	6.2S 52.4E	20 kt	1007 mb	Disturbance
Dec 4, 00:00	6.3S 52.1E	20 kt	1007 mb	Disturbance
Dec 4, 06:00	6.4S 51.8E	20 kt	1008 mb	Disturbance
Dec 4, 12:00	6.4S 51.6E	25 kt	1003 mb	Tropical depression
Dec 4, 18:00	6.4S 51.5E	30 kt	1006 mb	Tropical depression
Dec 5, 00:00	6.6S 51.2E	35 kt	1002 mb	Tropical storm
Dec 5, 06:00	6.7S 50.9E	40 kt	999 mb	Tropical storm
Dec 5, 12:00	6.9S 50.3E	45 kt	997 mb	Tropical storm
Dec 5, 18:00	7.2S 49.7E	55 kt	994 mb	Tropical storm
Dec 6, 00:00	7.5S 49.1E	60 kt	990 mb	Tropical storm
Dec 6, 06:00	8.1S 48.8E	60 kt	992 mb	Tropical storm
Dec 6, 12:00	8.6S 48.5E	60 kt	989 mb	Tropical storm
Dec 6, 18:00	8.9S 48.1E	65 kt	988 mb	Typhoon
Dec 7, 00:00	9.2S 47.8E	75 kt	981 mb	Typhoon
Dec 7, 06:00	9.6S 47.4E	90 kt	970 mb	Typhoon
Dec 7, 12:00	10.4S 47.3E	105 kt	955 mb	Typhoon
Dec 7, 18:00	10.8S 47.0E	100 kt	960 mb	Typhoon
Dec 8, 00:00	11.4S 46.7E	95 kt	965 mb	Typhoon
Dec 8, 06:00	11.9S 46.5E	90 kt	970 mb	Typhoon
Dec 8, 12:00	12.4S 46.5E	85 kt	971 mb	Typhoon
Dec 8, 18:00	13.0S 46.4E	85 kt	971 mb	Typhoon
Dec 9, 00:00	13.8S 46.0E	90 kt	967 mb	Typhoon
Dec 9, 06:00	14.7S 45.6E	90 kt	972 mb	Typhoon
Dec 9, 12:00	15.7S 45.2E	90 kt	970 mb	Typhoon
Dec 9, 18:00	16.5S 44.8E	100 kt	964 mb	Typhoon
Dec 10, 00:00	17.4S 44.7E	85 kt	974 mb	Typhoon
Dec 10, 06:00	18.3S 44.8E	65 kt	987 mb	Typhoon
Dec 10, 12:00	19.2S 44.8E	55 kt	993 mb	Tropical storm
Dec 10, 18:00	19.8S 45.0E	45 kt	1001 mb	Tropical storm
Dec 11, 00:00	20.4S 45.1E	30 kt	1007 mb	Tropical depression
Dec 11, 06:00	21.0S 45.1E	25 kt	1009 mb	Tropical depression
Dec 11, 12:00	21.5S 45.6E			Disturbance

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.

Wikipedia article: Cyclone Belna