The 1990 season

Tropical Storm Sam (1990)

Tropical Storm Sam peaked at 50 kt in the South Indian between January 11, 1990 and January 21, 1990, with a lowest pressure of 966 mb.

Track and intensity

The whole track of Tropical Storm Sam, colored by strength, with the other storms of the 1990 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 11, 1990 to January 21, 1990
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
966 mb (28.53 inHg)
Landfall
No; closest approach 22 km (14 mi)
Accumulated cyclone energy
4.4
Identifier
SH101990

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
Jan 11, 12:0012.0S 130.5E25 kt1003 mbTropical storm
Jan 11, 18:0012.6S 129.5E25 kt1003 mbTropical storm
Jan 12, 00:0012.8S 128.6E25 kt1003 mbTropical storm
Jan 12, 06:0013.0S 128.0E20 kt1002 mbTropical storm
Jan 12, 12:0013.4S 126.6E20 kt1001 mbTropical storm
Jan 12, 18:0013.7S 125.2E20 kt999 mbTropical storm
Jan 13, 00:0013.9S 123.8E25 kt997 mbTropical storm
Jan 13, 06:0013.9S 122.8E25 kt995 mbTropical storm
Jan 13, 12:0013.8S 121.9E30 kt993 mbTropical storm
Jan 13, 18:0013.5S 121.2E30 kt986 mbTropical storm
Jan 14, 00:0013.4S 120.7E35 kt982 mbTropical storm
Jan 14, 06:0013.6S 120.0E35 kt978 mbTropical storm
Jan 14, 12:0014.1S 119.0E40 kt972 mbTropical storm
Jan 14, 18:0014.8S 117.7E45 kt972 mbTropical storm
Jan 15, 00:0015.2S 116.5E45 kt972 mbTropical storm
Jan 15, 06:0015.4S 115.3E45 kt976 mbTropical storm
Jan 15, 12:0015.5S 114.1E45 kt976 mbTropical storm
Jan 15, 18:0015.9S 113.0E50 kt976 mbTropical storm
Jan 16, 00:0016.5S 112.2E50 kt976 mbTropical storm
Jan 16, 06:0017.0S 111.6E50 kt976 mbTropical storm
Jan 16, 12:0017.4S 110.7E45 kt974 mbTropical storm
Jan 16, 18:0017.7S 109.5E45 kt974 mbTropical storm
Jan 17, 00:0018.0S 108.5E45 kt972 mbTropical storm
Jan 17, 06:0018.5S 107.9E50 kt970 mbTropical storm
Jan 17, 12:0019.0S 107.5E50 kt968 mbTropical storm
Jan 17, 18:0019.5S 107.1E50 kt966 mbTropical storm
Jan 18, 00:0020.1S 106.7E50 kt966 mbTropical storm
Jan 18, 06:0020.7S 106.2E45 kt966 mbTropical storm
Jan 18, 12:0021.4S 105.9E45 kt970 mbTropical storm
Jan 18, 18:0022.1S 105.6E40 kt975 mbTropical storm
Jan 19, 00:0022.8S 105.4E40 kt980 mbTropical storm
Jan 19, 06:0023.6S 105.2E35 kt985 mbTropical storm
Jan 19, 12:0024.5S 105.2E30 kt990 mbTropical storm
Jan 19, 18:0025.3S 105.2E25 kt994 mbTropical storm
Jan 20, 00:0026.0S 105.2E25 kt997 mbTropical storm
Jan 20, 06:0026.9S 106.2E25 kt999 mbTropical storm
Jan 20, 12:0027.1S 107.0E25 kt1002 mbTropical storm
Jan 20, 18:0027.4S 108.1E25 kt1002 mbTropical storm
Jan 21, 00:0027.7S 109.0E25 kt1003 mbTropical storm

Other South Indian storms of 1990

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.