The 2010 season

Cyclone Cleo (2010)

Cyclone Cleo reached Category 4 in the South Indian between December 3, 2009 and December 17, 2009, with a lowest pressure of 937 mb.

Track and intensity

The whole track of Cyclone Cleo, colored by strength, with the other storms of the 2010 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 3, 2009 to December 17, 2009
Peak strength
Category 4, 115 kt (132 mph)
Lowest pressure
937 mb (27.67 inHg)
Landfall
No; closest approach 102 km (63 mi)
Accumulated cyclone energy
10.4
Identifier
SH032010

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Dec 3, 00:006.8S 96.4ETropical storm
Dec 3, 06:006.9S 95.1ETropical storm
Dec 3, 12:007.0S 94.0ETropical storm
Dec 3, 18:007.3S 93.0ETropical storm
Dec 4, 00:007.6S 92.2ETropical storm
Dec 4, 06:008.5S 91.1E15 kt1010 mbDisturbance
Dec 4, 12:008.3S 90.4E15 kt1010 mbDisturbance
Dec 4, 18:008.6S 89.8E15 kt1010 mbDisturbance
Dec 5, 00:009.0S 89.0E15 kt1010 mbDisturbance
Dec 5, 06:009.2S 88.0E15 kt1010 mbDisturbance
Dec 5, 12:009.3S 87.0E15 kt1010 mbDisturbance
Dec 5, 18:009.2S 86.0E15 kt1010 mbDisturbance
Dec 6, 00:008.7S 85.2E20 kt1007 mbTropical depression
Dec 6, 06:008.6S 84.3E25 kt1004 mbDisturbance
Dec 6, 12:008.5S 83.4E30 kt1000 mbDisturbance
Dec 6, 18:008.5S 82.7E30 kt1000 mbDisturbance
Dec 7, 00:008.7S 81.6E35 kt996 mbTropical storm
Dec 7, 06:008.9S 80.5E40 kt993 mbTropical storm
Dec 7, 12:009.1S 79.4E45 kt989 mbTropical storm
Dec 7, 18:009.7S 78.4E55 kt982 mbTropical storm
Dec 8, 00:0010.4S 77.4E65 kt974 mbTyphoon
Dec 8, 06:0010.8S 76.4E100 kt948 mbTyphoon
Dec 8, 12:0011.1S 75.6E115 kt937 mbTyphoon
Dec 8, 18:0011.4S 74.8E115 kt937 mbTyphoon
Dec 9, 00:0011.5S 74.0E105 kt944 mbTyphoon
Dec 9, 06:0011.8S 73.2E100 kt948 mbTyphoon
Dec 9, 12:0012.2S 72.5E90 kt956 mbTyphoon
Dec 9, 18:0012.7S 71.7E90 kt956 mbTyphoon
Dec 10, 00:0013.1S 71.0E80 kt963 mbTyphoon
Dec 10, 06:0013.4S 70.4E60 kt978 mbTropical storm
Dec 10, 12:0013.9S 69.8E50 kt985 mbTropical storm
Dec 10, 18:0014.0S 69.2E50 kt985 mbTropical storm
Dec 11, 00:0014.0S 68.5E45 kt989 mbTropical storm
Dec 11, 06:0013.8S 67.7E35 kt996 mbTropical storm
Dec 11, 12:0014.0S 66.8E30 kt1000 mbTropical depression
Dec 11, 18:0014.2S 66.0E30 kt1002 mbTropical depression
Dec 12, 00:0014.4S 65.2E30 kt1000 mbTropical depression
Dec 12, 06:0014.5S 64.4E30 kt1000 mbTropical depression
Dec 12, 12:0014.6S 63.7E25 kt1004 mbTropical depression
Dec 12, 18:0014.8S 63.0E25 kt1004 mbTropical depression
Dec 13, 00:0015.1S 62.5E30 kt1000 mbTropical depression
Dec 13, 06:0015.6S 62.1E30 kt1000 mbTropical depression
Dec 13, 12:0016.3S 62.0E30 kt1000 mbTropical depression
Dec 13, 18:0016.9S 61.7E30 kt1000 mbTropical depression
Dec 14, 00:0017.8S 61.2E30 kt1000 mbTropical depression
Dec 14, 06:0018.6S 60.5E25 kt1004 mbTropical depression
Dec 14, 12:0019.4S 60.0E25 kt1004 mbTropical depression
Dec 14, 18:0018.9S 60.0E15 kt1007 mbDisturbance
Dec 15, 00:0019.0S 59.9E15 kt1007 mbDisturbance
Dec 15, 06:0019.1S 60.0E15 kt1008 mbDisturbance
Dec 15, 12:0020.1S 60.2E15 kt1008 mbDisturbance
Dec 15, 18:0020.8S 60.3E15 kt1009 mbDisturbance
Dec 16, 00:0021.2S 59.9E15 kt1009 mbDisturbance
Dec 16, 06:0021.3S 59.3E15 kt1010 mbDisturbance
Dec 16, 12:0021.4S 58.6E15 kt1010 mbDisturbance
Dec 16, 18:0021.4S 57.9E1011 mbDisturbance
Dec 17, 00:0021.8S 57.3E1011 mbDisturbance
Dec 17, 06:0022.3S 56.6E1012 mbDisturbance

Other South Indian storms of 2010

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.