Tropical Storm Cathy (1999)

Tropical Storm Cathy peaked at 40 kt in the South Indian between December 22, 1998 and December 30, 1998, with a lowest pressure of 991 mb.

Track and intensity

The whole track of Tropical Storm Cathy, colored by strength, with the other storms of the 1999 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 22, 1998 to December 30, 1998
Peak strength: Tropical Storm, 40 kt (46 mph)
Lowest pressure: 991 mb (29.26 inHg)
Landfall: No; closest approach 690 km (429 mi)
Accumulated cyclone energy: 1.6
Identifier: SH101999

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 22, 18:00	11.0S 100.6E	25 kt	1002 mb	Tropical storm
Dec 23, 00:00	11.4S 100.7E	25 kt	1002 mb	Tropical storm
Dec 23, 06:00	12.1S 100.8E	25 kt	1002 mb	Tropical storm
Dec 23, 12:00	12.3S 100.4E	20 kt	1000 mb	Tropical storm
Dec 23, 18:00	13.4S 100.3E	25 kt	1000 mb	Tropical storm
Dec 24, 00:00	14.5S 100.1E	25 kt	998 mb	Tropical storm
Dec 24, 06:00	15.2S 99.8E	30 kt	996 mb	Tropical storm
Dec 24, 12:00	15.6S 99.6E	30 kt	996 mb	Tropical storm
Dec 24, 18:00	16.0S 99.2E	30 kt	992 mb	Tropical storm
Dec 25, 00:00	16.3S 98.7E	35 kt	991 mb	Tropical storm
Dec 25, 06:00	16.5S 98.2E	35 kt	991 mb	Tropical storm
Dec 25, 12:00	16.6S 97.6E	35 kt	991 mb	Tropical storm
Dec 25, 18:00	16.6S 96.8E	35 kt	991 mb	Tropical storm
Dec 26, 00:00	16.6S 95.9E	35 kt	991 mb	Tropical storm
Dec 26, 06:00	16.6S 95.3E	35 kt	991 mb	Tropical storm
Dec 26, 12:00	16.6S 94.7E	40 kt	994 mb	Tropical storm
Dec 26, 18:00	16.6S 94.2E	40 kt	996 mb	Tropical storm
Dec 27, 00:00	16.5S 93.7E	40 kt	998 mb	Tropical storm
Dec 27, 06:00	16.3S 93.2E	40 kt	999 mb	Tropical storm
Dec 27, 12:00	16.1S 92.7E	35 kt	1001 mb	Tropical storm
Dec 27, 18:00	15.8S 92.1E	35 kt	1002 mb	Tropical storm
Dec 28, 00:00	15.8S 91.0E	25 kt	1003 mb	Tropical storm
Dec 28, 06:00	15.6S 89.6E	25 kt		Tropical storm
Dec 28, 12:00	15.2S 89.0E	25 kt		Tropical storm
Dec 28, 18:00	14.9S 88.4E	25 kt		Tropical storm
Dec 29, 00:00	14.6S 87.8E	25 kt		Tropical storm
Dec 29, 06:00	14.5S 87.3E	25 kt		Tropical storm
Dec 29, 12:00	14.1S 86.5E	25 kt		Tropical storm
Dec 29, 18:00	13.7S 85.8E	25 kt		Not reported
Dec 30, 00:00	13.3S 85.2E	25 kt		Not reported
Dec 30, 06:00	12.9S 84.6E	25 kt		Not reported
Dec 30, 12:00	12.7S 84.1E	25 kt		Not reported
Dec 30, 18:00	12.5S 83.4E	25 kt		Not reported

Other South Indian storms of 1999

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.