Storm history › South Indian Ocean
1986 South Indian Ocean cyclone season
The 1986 South Indian Ocean season had 22 storms of tropical-storm strength or more, 10 of them cyclones and 5 major (Category 3 or stronger).
The first storm was tracked from September 22, 1985 and the last ended on May 15, 1986. The strongest by wind was Cyclone Erinesta (1986), at 130 mph (215 km/h). The season's accumulated cyclone energy (ACE) was 148.6.
- Storms
- 22
- Cyclones
- 10
- Major
- 5
- Category 5
- 0
- ACE
- 148.6
DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5
Storms
| Storm | Dates | Peak |
|---|---|---|
| Unnamed tropical storm 1, 1986 South Indian Ocean | Sep 22 – Sep 29 | 45 mph |
| Cyclone Nicholas | Nov 25 – Dec 7 | 85 mph |
| Tropical Storm Alifredy | Dec 22 – Dec 27 | 40 mph |
| Tropical Storm Berobia | Jan 5 – Jan 10 | 60 mph |
| Cyclone Delifina | Jan 7 – Jan 19 | 125 mph |
| Tropical Storm Ophelia | Jan 7 – Jan 13 | 45 mph |
| Cyclone Costa | Jan 7 – Jan 19 | 80 mph |
| Unnamed tropical storm 8, 1986 South Indian Ocean | Jan 11 – Jan 14 | 40 mph |
| Tropical Storm Hector | Jan 17 – Jan 24 | 50 mph |
| Tropical Storm Pancho | Jan 18 – Jan 22 | 65 mph |
| Cyclone Erinesta | Jan 29 – Feb 11 | 130 mph |
| Tropical Storm Filomena | Feb 5 – Feb 12 | 65 mph |
| Tropical Storm Rhonda | Feb 17 – Feb 22 | 60 mph |
| Cyclone Gista | Feb 18 – Feb 25 | 100 mph |
| Tropical Storm Selwyn | Feb 21 – Feb 26 | 60 mph |
| Tropical Storm Tiffany | Feb 25 – Mar 1 | 40 mph |
| Cyclone Victor | Mar 2 – Mar 9 | 120 mph |
| Cyclone Honorinina | Mar 7 – Mar 23 | 125 mph |
| Tropical Storm Iarima | Mar 11 – Mar 18 | 40 mph |
| Cyclone Jefotra | Mar 25 – Apr 5 | 120 mph |
| Cyclone Alison / Krisostoma | Apr 4 – Apr 14 | 85 mph |
| Cyclone Billy / Lila | May 4 – May 15 | 110 mph |