User:Jason Rees/Nancy
| Category 3 severe tropical cyclone (Aus scale) | |
|---|---|
| Category 2 tropical cyclone (SSHWS) | |
 Cyclone Raja on December 28 | |
| Formed | December 21, 1986 |
| Dissipated | January 5, 1987 |
| (Extratropical after January 1, 1987) | |
| Highest winds | 10-minute sustained: 150 km/h (90 mph) 1-minute sustained: 165 km/h (105 mph) |
| Lowest pressure | 955 hPa (mbar); 28.2 inHg |
| Fatalities | 2 |
| Damage | $14 million (1987 USD) |
| Areas affected | Fiji, Rotuma, Tonga, Tuvalu, Wallis and Futuna |
| Part of the 1989–90 Australian region and the 1989–90 South Pacific cyclone season | |
Meterological history[edit]
Towards the end of January 1990, a surge in the Northern Hemisphere's trade winds and the Southern Hemispheres monsoon, led to the South Pacific Convergence Zone and the Australian monsoon trough becoming active after a prolonged period of dormancy.[1] As a result, two shallow tropical depressions were spawned during January 26; one near the Pacific Island Nation of Tuvalu which eventually developed into Severe Tropical Cyclone Ofa, while the other one was located over the Coral Sea about 1,080 km (670 mi) to the north-west of Noumea, New Caledonia.[1][2] The system subsquently started to move slowly towards the south-west towards Australia, as gale force winds quickly developed in the depressions south-west quadrant.[1] As a result, the Australian Bureau of Meterology issued a gale warning for marine interests, before the system became slow moving and intensification stopped, as it started to be impacted by an unfavourable enviorment.[1]
Late on January 30, TCWC Nadi started to issue warnings on a tropical depression, that was intensifying as it moved southeastwards and approached 160°E and the South Pacific tropical cyclone basin.[1] The system subsequently moved into the basin early the next day and was named Nancy by TCWC Nadi, after it had become a category 1 tropical cyclone.[1] During that day the system re-curved and started to move towards the south-southwest, as it was steered around the southern extension of an upper level trough of low pressure.[1] The system subsequently moved out of the basin during February 1, as it intensified into a category 2 tropical cyclone.[3][2] While the system was in the basin the JTWC estimated that Nancy had peak 1-minute sustained winds of 215 km/h (130 mph), which made it equivalent to a category 1 hurricane on the SSHWS.[4] The system subsequently re-entered the basin as an extratropical cyclone on February 6, before it dissipated to the west of New Zealand on February 8.[2]
On February 3, 1990, Cyclone Nancy made landfall near Byron Bay, bringing flashfloods that killed five people.[1]
Effects[edit]
See also[edit]
References[edit]
- ^ a b c d e f g Koop, Neville L (April 8, 1990). Tropical Cyclone Report 90/1: Tropical Cyclone Nancy (Report). Fiji Meteorological Service. Cite error: The named reference "Nancy TCR" was defined multiple times with different content (see the help page).
- ^ a b c Tropical Cyclone Nancy (Report). Australian Bureau of Meteorology. Archived from the original on May 27, 2014. Retrieved August 30, 2017.
- ^ Cite error: The named reference
Wellington BTwas invoked but never defined (see the help page). - ^ Joint Typhoon Warning Center; Naval Pacific Meteorology and Oceanography Center. "Tropical Cyclone 12P best track analysis". United States Navy, United States Air Force. Retrieved May 29, 2014.