Strongest tropical cyclone on record to impact Tonga
Severe Tropical Cyclone Ron
Cyclone Ron at peak intensity after recurving towards Tonga on January 5
Meteorological history
Formed
January 1, 1998
Dissipated
January 9, 1998
Category 5 severe tropical cyclone
10-minute sustained (FMS)
Highest winds
230 km/h (145 mph)
Lowest pressure
900 hPa (mbar); 26.58 inHg
Category 5-equivalent tropical cyclone
1-minute sustained (SSHWS/NPMOC)
Highest winds
270 km/h (165 mph)
Overall effects
Fatalities
None
Damage
$566,000 (1998 USD)
Areas affected
Samoan Islands, Tonga, Wallis and Futuna
IBTrACS
Part of the 1997–98 South Pacific cyclone season
Severe Tropical Cyclone Ron was the strongest tropical cyclone on record to impact Tonga. The system was first noted as a tropical depression, to the northeast of Samoa on January 1, 1998. Over the next day the system gradually developed further and was named Ron as it developed into a Category 1 tropical cyclone on the Australian tropical cyclone intensity scale during the next day. The system subsequently continued to move south-westwards and became a Category 3 severe tropical cyclone, as it passed near Swains Island during January 3.
Intensification proceeded at a fairly rapid rate. Ron reached the peak intensity of 145 mph (225 km/h) on January 5, becoming one of the most intense cyclones in the Southern hemisphere in that decade, when Ron was at north-northwest of Apia, Samoa, three days after initial development. The cyclone maintained this strength for about 36 hours, while re-curving to the south-southeast. Then, Ron started weakening while passing between central Tonga and Niue on January 7. Finally, by January 9, Ron was absorbed by the much larger circulation of Severe Tropical Cyclone Susan.
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