[1] During September 2006, the Fiji Meteorological Service (FMS) reported that the development of a weak to moderate El Niño episode was likely which could push into the early months of 2007.

[3] As a result, the FMS predicted that the El Niño would have a significant effect on tropical cyclone frequency and distribution within the South Pacific basin and beyond during the upcoming season.

[3] They also predicted that the season could see an above average number of tropical cyclones occur, with a greater tendency for them to form near and east of the International Date Line.

As a Severe Tropical Cyclone, Xavier passed over Tikopia and then continued to intensify and reached its peak wind speeds early on October 24.

As the depression moved towards the west, it remained weak as it was badly affected by Cyclone Xavier's outflow, the final advisory was released on October 29.

The depression then meandered around the International Date Line for a couple days without any significant development, with the final advisory being issued by RSMC Nadi early on November 3.

During October 20, the JTWC and the FMS started to monitor a tropical depression, that had developed within the South Pacific Convergence Zone to the north of Temotu Province in the Solomon Islands.

[5][6][7] Over the next day conditions surrounding the system rapidly became favourable for further development, with convection starting to wrap into a well defined low level circulation centre.

[11] The FMS subsequently estimated during October 24, that the system had peaked as a Category 4 Severe Tropical Cyclone with 10-minute sustained wind speeds of 175 km/h (110 mph), while it was located about 220 km (135 mi) to the east of Vanua Lava in northern Vanuatu.

[5][10] During October 24, the FMS reported that the second tropical depression of the season had developed, within a trough of low pressure about 555 km (345 mi) to the northwest of American Samoa.

[19] Early the next day whilst the organisation of the system had not improved much, there had been enough of an increase in convection in the northern and southern quadrants for RSMC Nadi to designate the disturbance as Tropical Depression 04F.

[20] Over the next couple of days the depression gradually moved towards the south-west before the low level circulation center was relocated to the north of Vanuatu early on November 19.

[5][28] Yani maintained its peak intensity until early on November 24, when the storm began to weaken under the force of strengthening shear that tore away its low level circulation centre and was downgraded to a Tropical Depression by RSMC Nadi later that day.

On January 9 RSMC Nadi identified a tropical depression well east of the International Date Line, located in a sheared environment, with convection having persisted for 24 hours.

The system was assigned the name Zita by RSMC Nadi and commented in their tropical disturbance summary that the cyclone had undergone explosive development.

Forming as tropical depression on January 25, Arthur rapidly intensified into a strong Category 2 cyclone on the Australian intensity scale according to the Regional Specialized Meteorological Centre in Nadi, Fiji.

[32] RSMC Nadi upgraded the potential for development to high and began issuing advisories later in the day, but the depression soon became disorganised due to increasing shear.

The cyclone began weakening late that day as it passed to the west of Vanuatu, and RSMC Nadi issued its final tropical disturbance advisory on Becky early on March 29.

[34] Despite this, the system managed to organise and intensify as it moved southeast, and was named Tropical Cyclone Cliff on April 4 near the International Date Line.

The Joint Typhoon Warning Center designated it a tropical cyclone, the 23rd in the Southern Hemisphere for the season, later that day, as deep convective banding began to develop.

Continuing to move generally southeast, Cliff peaked in intensity on April 5 before starting to weaken as it crossed into the area of responsibility of TCWC Wellington.

Late that night, Cliff started to show signs of extratropical transition, causing Dvorak satellite intensity estimates to fall.