Storm history › North Indian Ocean
2011 North Indian Ocean cyclone season
The 2011 North Indian Ocean season had 7 storms of tropical-storm strength or more, 1 of them cyclones and 0 major (Category 3 or stronger).
The first storm was tracked from February 2, 2011 and the last ended on December 30, 2011. The strongest by wind was Cyclone Thane (2011), at 105 mph (165 km/h). The season's accumulated cyclone energy (ACE) was 10.7.
- Storms
- 7
- Cyclones
- 1
- Major
- 0
- Category 5
- 0
- ACE
- 10.7
DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5
Storms
| Storm | Dates | Peak |
|---|---|---|
| Unnamed tropical depression 1, 2011 North Indian Ocean | Feb 2 – Feb 2 | 30 mph |
| Unnamed tropical storm 2, 2011 North Indian Ocean | Jun 9 – Jun 12 | 40 mph |
| Unnamed tropical storm 3, 2011 North Indian Ocean | Jun 16 – Jun 22 | 40 mph |
| Unnamed tropical depression 4, 2011 North Indian Ocean | Jul 22 – Jul 23 | 25 mph |
| Unnamed tropical depression 5, 2011 North Indian Ocean | Sep 22 – Sep 23 | 5 mph |
| Unnamed tropical storm 6, 2011 North Indian Ocean | Oct 17 – Oct 20 | 40 mph |
| Tropical Storm Keila | Oct 29 – Nov 5 | 65 mph |
| Unnamed tropical storm 8, 2011 North Indian Ocean | Nov 6 – Nov 11 | 40 mph |
| Unnamed tropical storm 9, 2011 North Indian Ocean | Nov 25 – Dec 1 | 40 mph |
| Cyclone Thane | Dec 25 – Dec 30 | 105 mph |