Cyclone Alenga (2012)
Cyclone Alenga reached Category 2 in the South Indian between December 2, 2011 and December 10, 2011, with a lowest pressure of 952 mb.
Radar
Reflectivity now over Cyclone Alenga. Open it to see storms, cones and warnings on the map.
Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- South Indian
- Dates
- December 2, 2011 to December 10, 2011
- Peak strength
- Category 2, 95 kt (109 mph)
- Lowest pressure
- 952 mb (28.11 inHg)
- Landfall
- No; closest approach 421 km (262 mi)
- Accumulated cyclone energy
- 6.4
- Identifier
- SH012012
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Dec 2, 00:00 | 5.5S 98.4E | 15 kt | 1006 mb | Mixed |
| Dec 2, 06:00 | 6.1S 97.2E | 15 kt | 1010 mb | Disturbance |
| Dec 2, 12:00 | 6.5S 96.8E | 15 kt | 1010 mb | Disturbance |
| Dec 2, 18:00 | 7.3S 96.4E | 20 kt | 1007 mb | Disturbance |
| Dec 3, 00:00 | 8.1S 95.9E | 20 kt | 1007 mb | Disturbance |
| Dec 3, 06:00 | 9.1S 95.5E | 20 kt | 1007 mb | Disturbance |
| Dec 3, 12:00 | 9.7S 94.6E | 25 kt | 1004 mb | Tropical depression |
| Dec 3, 18:00 | 10.8S 94.0E | 30 kt | 1000 mb | Tropical depression |
| Dec 4, 00:00 | 11.9S 92.9E | 30 kt | 1000 mb | Tropical depression |
| Dec 4, 06:00 | 12.5S 91.2E | 30 kt | 1000 mb | Tropical depression |
| Dec 4, 12:00 | 12.8S 89.6E | 30 kt | 1000 mb | Tropical depression |
| Dec 4, 18:00 | 12.6S 88.8E | 35 kt | 996 mb | Tropical storm |
| Dec 5, 00:00 | 12.3S 88.1E | 40 kt | 993 mb | Tropical storm |
| Dec 5, 06:00 | 12.2S 87.8E | 50 kt | 985 mb | Tropical storm |
| Dec 5, 12:00 | 12.3S 87.5E | 50 kt | 985 mb | Tropical storm |
| Dec 5, 18:00 | 12.2S 87.2E | 50 kt | 985 mb | Tropical storm |
| Dec 6, 00:00 | 12.6S 87.2E | 45 kt | 989 mb | Tropical storm |
| Dec 6, 06:00 | 13.0S 87.4E | 45 kt | 989 mb | Tropical storm |
| Dec 6, 12:00 | 13.5S 87.6E | 45 kt | 989 mb | Tropical storm |
| Dec 6, 18:00 | 13.6S 88.2E | 50 kt | 985 mb | Tropical storm |
| Dec 7, 00:00 | 13.7S 89.0E | 55 kt | 982 mb | Tropical storm |
| Dec 7, 06:00 | 14.3S 90.2E | 60 kt | 978 mb | Tropical storm |
| Dec 7, 12:00 | 14.8S 91.5E | 60 kt | 978 mb | Tropical storm |
| Dec 7, 18:00 | 15.4S 93.1E | 70 kt | 970 mb | Typhoon |
| Dec 8, 00:00 | 16.3S 94.8E | 90 kt | 956 mb | Typhoon |
| Dec 8, 06:00 | 17.4S 96.8E | 95 kt | 952 mb | Typhoon |
| Dec 8, 12:00 | 18.4S 98.8E | 80 kt | 952 mb | Typhoon |
| Dec 8, 18:00 | 19.7S 100.6E | 65 kt | 974 mb | Typhoon |
| Dec 9, 00:00 | 20.6S 101.8E | 45 kt | 989 mb | Tropical storm |
| Dec 9, 06:00 | 21.3S 102.5E | 30 kt | 1000 mb | Tropical depression |
| Dec 9, 12:00 | 21.4S 102.9E | 25 kt | 1004 mb | Extratropical |
| Dec 9, 18:00 | 21.6S 103.0E | Disturbance | ||
| Dec 10, 00:00 | 21.7S 103.1E | Disturbance |
Other South Indian storms of 2012
- Unnamed tropical stormSouth Indian · 2012
- Tropical Storm GrantSouth Indian · 2012
- Cyclone BenildeSouth Indian · 2012
- Tropical Storm ChandaSouth Indian · 2012
- Cyclone HeidiSouth Indian · 2012
- Tropical Storm DandoSouth Indian · 2012
- Cyclone EthelSouth Indian · 2012
- Cyclone FunsoSouth Indian · 2012
- Cyclone IggySouth Indian · 2012
- Cyclone GiovannaSouth Indian · 2012
- Tropical Storm HilwaSouth Indian · 2012
- Tropical Storm IrinaSouth Indian · 2012
- Unnamed tropical stormSouth Indian · 2012
- Cyclone Joni:KojiSouth Indian · 2012
- Cyclone LuaSouth Indian · 2012
- Unnamed tropical depressionSouth Indian · 2012
- Unnamed tropical depressionSouth Indian · 2012
- Tropical Storm KuenaSouth Indian · 2012
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.