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Cyclone Eric

South Pacific cyclone in 1985

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Meteorological history

Severe Tropical Cyclone Eric was first noted on January 13, by the Fiji Meteorological Service (FMS) as a shallow depression, located within the monsoon trough about 835 km (520 mi) to the west of Espiritu Santo, Vanuatu. Over the next day, the system gradually developed further as it moved eastwards towards northern Vanuatu, with gale-force winds developing near the systems center, while satellite imagery showed an increase in the "cyclonic curvature" of the "convective cloud". At about 16:00 UTC (04:00 FST), the FMS named the system Eric as it had developed into category one tropical cyclone on the modern day Australian tropical cyclone intensity scale. Over the next day the system continued to develop as it moved eastwards, before the United States Joint Typhoon Warning Center (JTWC) initiated advisories on the system and designated it as Tropical Cyclone 11P. The system subsequently made landfall on Espiritu Santo just before 12:00 UTC (00:00 FST, January 16) as a category two tropical cyclone, before it passed near or over the islands of Ambae, Maewo and Pentecost in northern Vanuatu.

After moving across northern Vanuatu, Eric started to move south-eastwards and began to reorganise itself which made the system hard to track, until an eye appeared on satellite imagery at around 16:00 UTC on January 16, (04:00 FST, January 17), which confirmed that Eric had become a hurricane. Later that day, an Air Pacific flight from Fiji to the Solomon Islands was able to view the hurricane's eye on its radarscope, before it appeared on Nadi airport's radar at around 00:30 UTC (12:30 FST) as it accelerated south-eastwards. At around this time, the FMS estimated that Eric had peaked with 10-minute sustained wind speeds of 150 km/h (90 mph), which made it a category three severe tropical cyclone on the Australian scale. Over the next few hours, the FMS were able to observe Eric on the radar as it continued to accelerate south-eastwards and see the size of its eye contract to about 20 km (10 mi), before the radar's antenna had to be taken down at around 07:00 UTC (19:00 FST) and locked away as the wind speeds at Nadi increased. The hurricane subsequently passed near Malolo in the Mamanuca Islands at about 08:00 UTC (20:00 FST), before it made landfall on Viti Levu about 10 km (5 mi) to the south of Nadi.

As the system made landfall on January 17, the FMS lost all communication with the outside world, which meant that the New Zealand Meteorological Service (NZMS) were forced to take over the FMS's responsibilities for tracking Eric and Severe Tropical Cyclone Nigel. At about 10:45 UTC (22:45 FST), after the winds in Nadi had substantially decreased, the FMS were able to bring the radar back into operation, which showed that Viti Levu's landmass had modified Eric's eye region and caused the system to weaken, but seemed not to have affected its forward speed. At around 12:00 UTC (00:00 FST, January 18), the JTWC estimated that Eric had peaked with 1-minute sustained winds of 185 km/h (115 mph), which made it equivalent to a category three hurricane on the Saffir-Simpson hurricane wind scale. The system subsequently passed over Fiji's capital city of Suva, before it emerged into the Koro Sea as a category 2 tropical cyclone and passed near or over the Lau Islands of Moala, Totoya, Kabara, Fulaga, Ogea Levu and Ogea Driki by 18:00 UTC (06:00 FST, January 18). After moving through the Lau Islands, Eric continued to move south-eastwards and passed just to the south of Nomuka in the Tongan Haʻapai Group of islands at around 03:00 UTC (15:00 FST) on January 18. Over the next couple of days, Eric gradually weakened further over the open seas of the Pacific Ocean, before it was last noted by the NZMS and the JTWC on January 20, over 1,800 km (1,120 mi) to the south of Papeete in French Polynesia.

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