2010–11 South-West Indian Ocean cyclone season
The 2010–11 South-West Indian Ocean cyclone season was the least active cyclone season on record in the basin, tied with 1982–83, producing only three systems of gale intensity. This was due to cooler than normal water temperatures and the Walker circulation – a broad atmospheric circulation – causing unusually moist conditions in the eastern Indian Ocean and unusually dry conditions in the western Indian Ocean.
Source: Wikipedia — 2010–11 South-West Indian Ocean cyclone season (CC BY-SA 4.0)