Powerful gusts hitting velocities of as high as 155km/h (96mph) have left nearly 90,000 homes without power and compelled officials to halt more than 100 air travel services, according to local media.
The winds are affecting the entire South Island and lower areas of the northern region, as stated by the national weather agency.
New Zealand authorities have released rare severe gust advisories - the highest alert level - in central regions encompassing Canterbury and Wellington.
Locals have been urged to stay indoors, stay off roads, and get ready for more utility disruptions.
Extensive Destruction and Crisis Response
The power cut is primarily influencing residences mostly in the southern region, while agencies state that power was being slowly brought back.
Domestic outlets have stated that in various locations structures have suffered roof damage, whereas trees and electricity poles have been toppled by the gales.
Across Wellington, a individual was fatally injured after being hit by a tree branch at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a female was pushed toward oncoming traffic on a thoroughfare by a powerful blast, in a moment that was captured in a viral dashcam video.
Flights in and out of the metropolis have been cancelled as a result of the weather, while some roads and libraries are shut down.
Meanwhile Canterbury officials have declared a crisis declaration, to facilitate disaster response efforts.
Strike Action Alongside Severe Conditions
These intense gusts on this day coincide with tens of thousands of teachers, doctors and other public workers take part in what has been called a "major walkout", demanding improved salaries and workplace environments.
However the intense climate has compelled them to modify certain arrangements, with various open-air gatherings relocated inside or abandoned.
Like conditions are also sweeping Australia, causing a high-temperature event to the nation's interior regions.
Agencies have declared flame prohibitions for concern about forest fires.
