The 1971 season

Tropical Depression Maggie:Muriel (1971)

Tropical Depression Maggie:Muriel peaked at unknown kt in the South Indian between March 7, 1971 and March 20, 1971, with a lowest pressure of 960 mb.

Track and intensity

The whole track of Tropical Depression Maggie:Muriel, colored by strength, with the other storms of the 1971 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
March 7, 1971 to March 20, 1971
Peak strength
Tropical Depression
Lowest pressure
960 mb (28.35 inHg)
Landfall
No; closest approach 1276 km (793 mi)
Accumulated cyclone energy
0.0
Identifier
SH231971

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 7, 00:0010.0S 91.0E1004 mbTropical storm
Mar 7, 06:0010.2S 90.4E1004 mbTropical storm
Mar 7, 12:0010.5S 89.8E1004 mbTropical storm
Mar 7, 18:0010.8S 89.4E1004 mbTropical storm
Mar 8, 00:0011.0S 89.0E1004 mbTropical storm
Mar 8, 06:0011.3S 88.4E1003 mbTropical storm
Mar 8, 12:0011.5S 87.8E1002 mbTropical storm
Mar 8, 18:0011.8S 87.2E1000 mbTropical storm
Mar 9, 00:0012.0S 87.0E998 mbTropical storm
Mar 9, 06:0012.2S 86.8E997 mbTropical storm
Mar 9, 12:0012.5S 86.6E995 mbTropical storm
Mar 9, 18:0012.7S 86.4E993 mbTropical storm
Mar 10, 00:0013.0S 86.0E990 mbTropical storm
Mar 10, 06:0013.0S 85.8E988 mbTropical storm
Mar 10, 12:0013.0S 85.6E985 mbTropical storm
Mar 10, 18:0012.9S 87.0E983 mbTropical storm
Mar 11, 00:0012.8S 87.2E980 mbTropical storm
Mar 11, 06:0012.9S 87.0E978 mbTropical storm
Mar 11, 12:0013.1S 86.4E976 mbTropical storm
Mar 11, 18:0013.3S 85.8E974 mbTropical storm
Mar 12, 00:0013.6S 85.2E970 mbTropical storm
Mar 12, 06:0013.9S 84.5E968 mbTropical storm
Mar 12, 12:0014.1S 83.6E966 mbTropical storm
Mar 12, 18:0014.4S 82.7E960 mbTropical storm
Mar 13, 00:0014.6S 81.9E960 mbTropical storm
Mar 13, 06:0014.9S 81.1ETropical storm
Mar 13, 12:0015.1S 80.4ETropical storm
Mar 13, 18:0015.4S 79.6ETropical storm
Mar 14, 00:0015.7S 78.6ETropical storm
Mar 14, 06:0016.0S 77.6ETropical storm
Mar 14, 12:0016.3S 76.7ETropical storm
Mar 14, 18:0016.7S 75.7ETropical storm
Mar 15, 00:0017.0S 74.6ETropical storm
Mar 15, 06:0017.6S 73.5ETropical storm
Mar 15, 12:0019.0S 72.4ETropical storm
Mar 15, 18:0021.0S 71.7ETropical storm
Mar 16, 00:0022.9S 71.8ETropical storm
Mar 16, 06:0024.9S 72.5EMixed
Mar 16, 12:0026.8S 73.1EMixed
Mar 16, 18:0028.8S 73.9EMixed
Mar 17, 00:0030.6S 74.9EMixed
Mar 17, 06:0032.2S 76.2EMixed
Mar 17, 12:0031.8S 75.9EMixed
Mar 17, 18:0033.0S 77.5EMixed
Mar 18, 00:0034.5S 80.2E970 mbMixed
Mar 18, 06:0036.3S 84.4EMixed
Mar 18, 12:0037.1S 88.9ETropical storm
Mar 18, 18:0038.0S 91.0ETropical storm
Mar 19, 00:0039.0S 93.0E998 mbTropical storm
Mar 19, 06:0039.2S 93.2ETropical storm
Mar 19, 12:0039.4S 93.6ETropical storm
Mar 19, 18:0039.7S 93.8ETropical storm
Mar 20, 00:0040.0S 94.0E1000 mbTropical storm

Other South Indian storms of 1971

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.