The 2015 season

Tropical Storm Diamondra (2015)

Tropical Storm Diamondra peaked at 45 kt in the South Indian between January 24, 2015 and February 1, 2015, with a lowest pressure of 985 mb.

Track and intensity

The whole track of Tropical Storm Diamondra, colored by strength, with the other storms of the 2015 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 24, 2015 to February 1, 2015
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
985 mb (29.09 inHg)
Landfall
No; closest approach 1448 km (900 mi)
Accumulated cyclone energy
1.5
Identifier
SH082015

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jan 24, 06:0011.2S 90.0E20 kt1006 mbDisturbance
Jan 24, 12:0012.3S 88.4E20 kt1006 mbDisturbance
Jan 24, 18:0013.3S 86.8E20 kt1006 mbDisturbance
Jan 25, 00:0014.2S 85.2E20 kt1006 mbDisturbance
Jan 25, 06:0014.9S 83.6E22 kt1005 mbDisturbance
Jan 25, 12:0015.3S 82.4E22 kt1005 mbDisturbance
Jan 25, 18:0015.7S 81.6E23 kt1004 mbDisturbance
Jan 26, 00:0016.0S 80.7E25 kt1002 mbDisturbance
Jan 26, 06:0016.4S 79.5E25 kt1004 mbTropical depression
Jan 26, 12:0016.8S 78.7E30 kt1000 mbTropical depression
Jan 26, 18:0017.1S 78.1E35 kt996 mbTropical storm
Jan 27, 00:0017.5S 77.8E35 kt996 mbTropical storm
Jan 27, 06:0017.9S 77.6E35 kt996 mbTropical storm
Jan 27, 12:0018.3S 77.6E40 kt993 mbTropical storm
Jan 27, 18:0018.4S 78.0E40 kt993 mbTropical storm
Jan 28, 00:0018.6S 78.5E40 kt993 mbTropical storm
Jan 28, 06:0019.0S 79.0E40 kt993 mbTropical storm
Jan 28, 12:0019.4S 79.4E45 kt989 mbTropical storm
Jan 28, 18:0019.8S 79.7E40 kt993 mbTropical storm
Jan 29, 00:0020.2S 79.9E40 kt993 mbTropical storm
Jan 29, 06:0020.8S 80.2E40 kt993 mbSubtropical storm
Jan 29, 12:0021.4S 80.4E40 kt993 mbSubtropical storm
Jan 29, 18:0021.9S 80.8E35 kt996 mbSubtropical storm
Jan 30, 00:0022.4S 81.3E35 kt996 mbSubtropical storm
Jan 30, 06:0023.3S 81.9E38 kt988 mbExtratropical
Jan 30, 12:0024.2S 82.6E40 kt986 mbExtratropical
Jan 30, 18:0025.1S 83.3E42 kt985 mbExtratropical
Jan 31, 00:0025.9S 83.9E40 kt986 mbExtratropical
Jan 31, 06:0026.7S 84.6E40 kt986 mbExtratropical
Jan 31, 12:0027.3S 85.1E38 kt987 mbExtratropical
Jan 31, 18:0027.9S 85.7E35 kt988 mbExtratropical
Feb 1, 00:0028.8S 86.5E35 kt988 mbExtratropical
Feb 1, 06:0029.8S 87.6E35 kt988 mbExtratropical

Other South Indian storms of 2015

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.