The 2011 season

Cyclone Zelia (2011)

Cyclone Zelia reached Category 2 in the South Pacific between January 12, 2011 and January 18, 2011, with a lowest pressure of 952 mb.

Radar

Reflectivity now over Cyclone Zelia. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
South Pacific
Dates
January 12, 2011 to January 18, 2011
Peak strength
Category 2, 95 kt (109 mph)
Lowest pressure
952 mb (28.11 inHg)
Landfall
No; closest approach 83 km (52 mi)
Accumulated cyclone energy
7.4
Identifier
SH072011

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jan 12, 18:0014.7S 150.9E20 kt1007 mbDisturbance
Jan 13, 00:0014.5S 150.2E30 kt1000 mbTropical depression
Jan 13, 06:0013.7S 150.1E30 kt1000 mbTropical depression
Jan 13, 12:0012.8S 149.9E35 kt996 mbTropical storm
Jan 13, 18:0012.5S 150.4E40 kt993 mbTropical storm
Jan 14, 00:0012.4S 151.0E45 kt989 mbTropical storm
Jan 14, 06:0012.7S 151.3E50 kt985 mbTropical storm
Jan 14, 12:0013.1S 151.9E55 kt982 mbTropical storm
Jan 14, 18:0014.0S 151.8E55 kt982 mbTropical storm
Jan 15, 00:0014.5S 152.2E55 kt982 mbTropical storm
Jan 15, 06:0015.1S 152.4E60 kt978 mbTropical storm
Jan 15, 12:0015.6S 153.2E60 kt978 mbTropical storm
Jan 15, 18:0016.2S 155.0E70 kt970 mbTyphoon
Jan 16, 00:0017.5S 156.9E85 kt959 mbTyphoon
Jan 16, 06:0019.0S 158.8E95 kt952 mbTyphoon
Jan 16, 12:0020.7S 160.8E90 kt956 mbTyphoon
Jan 16, 18:0022.8S 162.9E85 kt959 mbTyphoon
Jan 17, 00:0025.1S 165.1E75 kt967 mbTyphoon
Jan 17, 06:0027.3S 167.3E65 kt974 mbTyphoon
Jan 17, 12:0030.2S 168.5E50 kt985 mbTropical storm
Jan 17, 18:0033.3S 169.4E40 kt993 mbTropical storm
Jan 18, 00:0036.2S 170.2E35 kt996 mbExtratropical
Jan 18, 06:0040.0S 172.0E40 kt987 mbExtratropical

Other South Pacific storms of 2011

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.