The 1990 season

Cyclone Gregoara:Walter (1990)

Cyclone Gregoara:Walter reached Category 3 in the South Indian between March 3, 1990 and March 27, 1990, with a lowest pressure of 927 mb.

Track and intensity

The whole track of Cyclone Gregoara:Walter, 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.

Open the live map with storms, cones and warnings

The storm

Basin
South Indian
Dates
March 3, 1990 to March 27, 1990
Peak strength
Category 3, 110 kt (127 mph)
Lowest pressure
927 mb (27.37 inHg)
Landfall
No; closest approach 1072 km (666 mi)
Accumulated cyclone energy
20.9
Identifier
SH201990

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
Mar 3, 00:0013.2S 90.7E20 ktNot reported
Mar 3, 06:0013.3S 91.5E20 ktNot reported
Mar 3, 12:0013.5S 92.0E20 ktNot reported
Mar 3, 18:0013.7S 92.5E25 kt1000 mbTropical storm
Mar 4, 00:0014.2S 93.3E25 kt1000 mbTropical storm
Mar 4, 06:0015.1S 94.1E25 kt1000 mbTropical storm
Mar 4, 12:0015.8S 94.4E25 kt998 mbTropical storm
Mar 4, 18:0016.6S 94.6E25 kt995 mbTropical storm
Mar 5, 00:0017.2S 95.0E25 kt995 mbTropical storm
Mar 5, 06:0017.7S 95.6E25 kt992 mbTropical storm
Mar 5, 12:0018.5S 96.1E25 kt990 mbTropical storm
Mar 5, 18:0019.4S 96.6E25 kt987 mbTropical storm
Mar 6, 00:0020.1S 97.1E25 kt985 mbTropical storm
Mar 6, 06:0020.7S 97.5E30 kt985 mbTropical storm
Mar 6, 12:0021.2S 97.7E25 kt988 mbTropical storm
Mar 6, 18:0021.7S 97.4E25 kt991 mbTropical storm
Mar 7, 00:0021.2S 96.8E35 kt993 mbTropical storm
Mar 7, 06:0021.1S 95.8E35 kt995 mbTropical storm
Mar 7, 12:0020.9S 95.6E35 kt995 mbTropical storm
Mar 7, 18:0020.5S 95.0E35 kt995 mbTropical storm
Mar 8, 00:0020.2S 94.9E35 kt995 mbTropical storm
Mar 8, 06:0019.8S 95.0E30 kt996 mbTropical storm
Mar 8, 12:0019.3S 95.1E35 kt998 mbTropical storm
Mar 8, 18:0018.6S 95.4E30 kt999 mbTropical storm
Mar 9, 00:0017.5S 95.9E25 kt1000 mbTropical storm
Mar 9, 06:0017.0S 96.3E25 kt1002 mbTropical storm
Mar 9, 12:0016.6S 96.6E25 kt1002 mbTropical storm
Mar 9, 18:0016.2S 96.8E25 kt1002 mbTropical storm
Mar 10, 00:0015.8S 97.2E25 kt1003 mbTropical storm
Mar 10, 06:0015.4S 97.8E25 kt1004 mbTropical storm
Mar 10, 12:0015.2S 98.2E25 kt1003 mbTropical storm
Mar 10, 18:0014.8S 98.3E25 kt1002 mbTropical storm
Mar 11, 00:0012.0S 98.0E15 kt1002 mbTropical storm
Mar 11, 06:0012.5S 97.9E15 kt1000 mbTropical storm
Mar 11, 12:0013.0S 97.8E15 kt1000 mbTropical storm
Mar 11, 18:0013.3S 97.5E20 kt1000 mbTropical storm
Mar 12, 00:0013.4S 97.0E25 kt998 mbTropical storm
Mar 12, 06:0013.4S 96.4E25 kt997 mbTropical storm
Mar 12, 12:0013.3S 95.6E25 kt997 mbTropical storm
Mar 12, 18:0013.2S 94.5E25 kt996 mbTropical storm
Mar 13, 00:0012.8S 93.3E25 kt990 mbTropical storm
Mar 13, 06:0012.3S 91.9E25 kt988 mbTropical storm
Mar 13, 12:0011.8S 90.8E30 kt985 mbTropical storm
Mar 13, 18:0011.5S 90.0E35 kt983 mbTropical storm
Mar 14, 00:0011.3S 89.4E40 kt980 mbTropical storm
Mar 14, 06:0011.2S 88.6E45 kt978 mbTropical storm
Mar 14, 12:0011.4S 87.8E50 kt976 mbTropical storm
Mar 14, 18:0011.6S 87.0E60 ktTropical storm
Mar 15, 00:0011.9S 86.2E65 ktTropical storm
Mar 15, 06:0012.1S 85.5E70 ktTropical storm
Mar 15, 12:0012.3S 84.7E75 ktTropical storm
Mar 15, 18:0012.7S 84.3E80 ktTropical storm
Mar 16, 00:0013.1S 84.0E80 ktTropical storm
Mar 16, 06:0013.6S 83.8E85 ktTropical storm
Mar 16, 12:0014.0S 83.7E85 ktTropical storm
Mar 16, 18:0014.4S 83.3E85 ktTropical storm
Mar 17, 00:0014.8S 83.2E90 ktTropical storm
Mar 17, 06:0015.3S 82.9E95 ktTropical storm
Mar 17, 12:0015.7S 82.5E100 ktTropical storm
Mar 17, 18:0016.1S 82.2E105 ktTropical storm
Mar 18, 00:0016.5S 81.7E110 ktTropical storm
Mar 18, 06:0016.9S 81.1E110 ktTropical storm
Mar 18, 12:0017.3S 80.4E110 ktTropical storm
Mar 18, 18:0017.8S 79.6E105 kt927 mbTropical storm
Mar 19, 00:0018.2S 78.9E100 kt941 mbTropical storm
Mar 19, 06:0018.7S 78.4E90 kt941 mbTropical storm
Mar 19, 12:0019.4S 77.9E85 kt954 mbTropical storm
Mar 19, 18:0020.2S 77.4E80 kt966 mbTropical storm
Mar 20, 00:0020.9S 77.2E75 kt966 mbTropical storm
Mar 20, 06:0021.5S 77.1E65 kt966 mbTropical storm
Mar 20, 12:0022.0S 76.9E60 kt966 mbTropical storm
Mar 20, 18:0022.2S 76.5E55 kt976 mbTropical storm
Mar 21, 00:0022.3S 75.9E45 kt984 mbTropical storm
Mar 21, 06:0022.7S 75.2E40 kt984 mbTropical storm
Mar 21, 12:0023.3S 74.8E40 kt991 mbTropical storm
Mar 21, 18:0024.0S 74.6E35 kt991 mbMixed
Mar 22, 00:0024.8S 74.5E35 kt997 mbMixed
Mar 22, 06:0025.6S 75.0E30 kt997 mbMixed
Mar 22, 12:0026.2S 75.6E30 kt997 mbMixed
Mar 22, 18:0026.8S 76.3E30 kt997 mbMixed
Mar 23, 00:0027.2S 77.1E30 kt997 mbMixed
Mar 23, 06:0027.6S 78.2E30 kt997 mbMixed
Mar 23, 12:0027.9S 79.3E30 kt1000 mbMixed
Mar 23, 18:0028.3S 80.7E30 kt1000 mbMixed
Mar 24, 00:0028.4S 82.1E30 kt1000 mbMixed
Mar 24, 06:0027.2S 77.3E24 kt1000 mbExtratropical
Mar 24, 12:0027.5S 77.1EDisturbance
Mar 24, 18:0027.7S 76.9EDisturbance
Mar 25, 00:0027.8S 76.5EDisturbance
Mar 25, 06:0028.0S 76.2EDisturbance
Mar 25, 12:0028.7S 75.4EDisturbance
Mar 25, 18:0029.4S 74.7EDisturbance
Mar 26, 00:0030.0S 74.5EDisturbance
Mar 26, 06:0031.0S 75.0EDisturbance
Mar 26, 12:0031.3S 75.8EDisturbance
Mar 26, 18:0031.7S 76.7EDisturbance
Mar 27, 00:0031.9S 77.7EDisturbance
Mar 27, 06:0032.0S 78.4EDisturbance

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.