A tropical low rapidly developed north of Cocos Islands reaching cyclone intensity on 7 December peaking at category 3 intensity as it passed east of the islands before weakening further south on 11 December. Although cyclone advices were issued for Cocos Islands no gales were recorded and there was no known damage caused.
For more information see the TC Jana Report (pdf)
Track and intensity
All times in WST - subtract 8 hours to convert to UTC.