Severe gales hitting speeds of approximately 155km/h (96mph) have caused approximately 90,000 households without power and led officials to cancel in excess of 100 flights, based on local media.
The winds are impacting the whole South Island and southern parts of the North Island, as stated by the weather forecasting body.
Officials in New Zealand have issued rare high-level wind alerts - the most severe warning - in core zones including these major districts.
Residents have been encouraged to avoid going outside, refrain from journeys, and get ready for additional power and communication outages.
Broad Impact and Crisis Response
This outage appears to be affecting residences mostly in the South Island, while authorities report that power was being slowly brought back.
Domestic outlets have reported that in certain areas structures have suffered roof damage, while trees and electricity poles have been toppled by the gusts.
In Wellington, a person was fatally injured after being impacted by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a individual was blown onto oncoming traffic on a thoroughfare by a powerful blast, in a moment that was captured in a popular vehicle recording.
Aircraft services entering and leaving the metropolis have been suspended because of the weather, and certain highways and community centers are also closed.
At the same time authorities in Canterbury have announced a crisis declaration, to support recovery activities.
Strike Action Alongside Severe Conditions
These intense gusts on Thursday occur while numerous of teachers, doctors and other public workers are engaged in what has been described as a "mega strike", demanding higher wages and enhanced employment terms.
But the extreme weather has compelled them to change certain arrangements, with some outdoor rallies relocated inside or cancelled.
Comparable winds are affecting the nearby nation, causing a high-temperature event to the country's outback.
Authorities have announced burning restrictions for fear of bushfires.
