when did the cyclone raja occur?
21 December 1986
Cyclone Raja
The South Pacific convergence zone was active in the middle of December 1986, with a mid-latitude upper-level trough of low pressure which extended into the tropics. A westerly wind burst between Tokelau and Kanton Island resulted in a tropical disturbance developing to the northeast of Tokelau. The Fiji Meteorological Service (FMS) began to monitor the disturbance as a shallow tropical depression on 21 December, when the system was about east of the island of Funafuti, Tuvalu. At that time, the system was beyond the range of any reporting stations; its circulation was weak and ill-defined, which meant that there was considerable uncertainty about the location of its center. The depression moved southwest and passed near the Tuvaluan atoll of Nukufetau, as it slowly deepened and organised over the next 36 hours.
wiki:20070161
Cyclone Raja [SEP] Meteorological history
The South Pacific convergence zone was active in the middle of December 1986, with a mid-latitude upper-level trough of low pressure which extended into the tropics. A westerly wind burst between Tokelau and Kanton Island resulted in a tropical disturbance developing to the northeast of Tokelau. The Fiji Meteorological Service (FMS) began to monitor the disturbance as a shallow tropical depression on 21 December, when the system was about east of the island of Funafuti, Tuvalu. At that time, the system was beyond the range of any reporting stations; its circulation was weak and ill-defined, which meant that there was considerable uncertainty about the location of its center.