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Cyclone Tino

Category 3 South Pacific cyclone of 2020

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In its formative stages, Tino produced heavy rainfall over the Solomon Islands and Vanuatu. Wallis and Futuna sustained similar effects, particularly in Wallis where damaged homes and downed trees were reported. Fiji and the Fijian dependency of Rotuma were extensively impacted by the cyclone. Rotuma's wharf in Oinafa was severely damaged, curtailing marine travel. More than 3,000 people sought shelter in Fiji ahead of the storm. The Northern Division was most greatly affected, incurring a US$2.81 million damage toll. Flooding rainfall caused creeks to overflow and thousands were left without power. Two people were missing after being swept by a swollen creek in Serua Province. Roads and crops were damaged in Tonga following Tino's passage on January 18 near peak strength, with the worst effects afflicting the island groups of Vavaʻu and Ha'apai. A convergence zone connected to Tino brought stormy conditions well-spatially and temporally beyond the cyclone's circulation. Waves as high as 8 m (26 ft) struck Tuvalu's low-lying atolls and surrounding waters, causing catastrophic flooding and uprooting numerous crops. The convergence zone also produced damaging swells in Niue and gusty winds in Samoa.

Meteorological history

During January 11, the Fiji Meteorological Service (FMS) reported that Tropical Disturbance 04F had developed, about 410 km (255 mi) to the southwest of Honiara in the Solomon Islands. At this time the system was poorly organised with deep atmospheric convection displaced, to the south of the system's broad low level circulation center. The disturbance was also located to the north of a subtropical ridge of high pressure, within a favourable environment for further development, with a low to moderate amount of vertical wind shear and warm sea surface temperatures of 29–31 °C (84–88 °F). Over the next couple of days, the system slowly consolidated and gradually developed further, as it was steered eastwards by the ridge through Temotu Province of the Solomon Islands. The system was subsequently classified as a tropical depression during January 15, while it was located about 570 km (355 mi) to the northeast of Port Vila in Vanuatu. After the system had been classified as a tropical depression, the system continued to develop, with deep convection wrapping on to the systems low-level circulation center. As a result of this and decreasing vertical wind shear, the United States Joint Typhoon Warning Center issued a tropical cyclone formation alert on the system. During January 16, the system started moving south-eastwards towards Fiji and passed within 40 km (25 mi) of the Fijian dependency of Rotuma.

As the system passed near Rotuma, the FMS reported that the depression had developed into a Category 1 tropical cyclone, on the Australian tropical cyclone intensity scale and named it Tino. Later that day the JTWC initiated advisories on the newly named tropical cyclone and designated it as Tropical Cyclone 08P, after its outflow improved with a point source positioning itself over the systems center. During January 17, Tino passed to the east of Udu Point on the Fijian island of Vanua Levu, before it developed an eye as it moved south-eastwards to the east of Fiji's Lau Islands. During January 18, the FMS reported that Tino had become a Category 3 severe tropical cyclone and had peaked with 10-minute sustained wind speeds of 120 km/h (75 mph). At around the same time, the JTWC reported that the system had peaked with 1-minute sustained wind speeds of 155 km/h (100 mph), which made Tino equivalent to a Category 2 hurricane on the Saffir-Simpson hurricane wind scale. Later that day, as the system passed near or over several of Tonga's Ha'apai islands, Tino started to gradually weaken with dry air wrapping into the systems low level circulation center from the south. The system also started to interact with a baroclinic zone and transition into an extratropical cyclone. Tino moved out of the tropics later that day, which prompted the FMS to pass the primary warning responsibility for Tino to New Zealand's MetService. The JTWC then issued their final advisory on the system during January 19, before it was last noted during the next day, as MetService declared that Tino had become an extratropical low.

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