Cyclone Zoe

The system was first noted on December 23, 2002, as a tropical depression that had developed, within the South Pacific Convergence Zone to the east of Tuvalu.

The system subsequently affected the Solomon Islands Temotu Province during that day, before it peaked with 10-minute sustained wind speeds of 240 km/h (150 mph).

Although effects were lesser in Vanuatu, the country's northernmost islands experienced heavy flooding and beaches destroyed by high waves.

The origins of Severe Tropical Cyclone Zoe can be traced back to a convective cloud cluster, that had developed by December 22, within the South Pacific Convergence Zone to the north of the Samoan Islands.

[1][2] The system subsequently emerged out of the South Pacific Convergence Zone and was classified as Tropical Depression 04F, while it was located to the east of Funafuti in Tuvalu.

[2][4] After being named, Zoe intensified very rapidly in very favorable conditions and became a Category 3 severe tropical cyclone by 12:00 UTC (23:00 SIT) on December 26.

[2][7] Zoe's eye subsequently became obvious on both visible and infrared satellite imagery, while the system continued to intensify and became a Category 5 severe tropical cyclone during December 27.

[1][8] Zoe subsequently turned towards the southwest and passed in between the Solomon Islands of Anuta and Fataka, as the subtropical ridge weakened in response to an upper level trough of low pressure over the Tasman Sea.

[1][4] Early on December 28, the FMS estimated that the system had peaked as a Category 5 severe tropical cyclone, with 10-minute sustained wind speeds of 240 km/h (150 mph) and a minimum pressure of 890 hPa (26.28 inHg).

[1] As a result, Zoe virtually stalled and performed a small clockwise cyclonic loop, within the vicinity of Tikopia, however, the eye of the system did not pass over the island.

[1][9] Over the next couple of days the system rapidly weakened under the influence of: strengthening vertical wind shear, dry air and cooler sea surface temperatures.

[2][4] During December 31, as the system continued its southeastwards movement, it passed about 390 km (240 mi) to the southwest of Nadi, Fiji as a Category 2 tropical cyclone.

[7] At its peak intensity Zoe was estimated by the FMS to be a Category 5 severe tropical cyclone, with 10-minute sustained wind speeds of 240 km/h (150 mph) and a minimum pressure of 890 hPa (26.28 inHg).

The United States Joint Typhoon Warning Center reported that the system had peaked with 1-minute sustained wind speeds of 285 km/h (180 mph) and a minimum pressure of 879 hPa (25.96 inHg).

[14] Early on December 26, both RSMC Nadi and TCWC Brisbane started to issue warnings to support the meteorological services of Vanuatu and the Solomon Islands in tracking the cyclone.

[17] During the following day, Zoe passed about 335 km (210 mi) to the west of Nadi on the island of Viti Levu, before the strong wind warnings were cancelled as 2003 opened.

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Tropical depression (≤38 mph, ≤62 km/h)
Tropical storm (39–73 mph, 63–118 km/h)
Category 1 (74–95 mph, 119–153 km/h)
Category 2 (96–110 mph, 154–177 km/h)
Category 3 (111–129 mph, 178–208 km/h)
Category 4 (130–156 mph, 209–251 km/h)
Category 5 (≥157 mph, ≥252 km/h)
Unknown
Storm type
triangle Extratropical cyclone , remnant low, tropical disturbance, or monsoon depression
Cyclone Zoe near Vanuatu on December 29