Powerful gusts reaching velocities of approximately 155km/h (96mph) have resulted in around 90,000 households experiencing outages and forced officials to cancel more than 100 air travel services, according to local media.
These gusts are affecting the complete South Island and southern sections of the North Island, as stated by the country's meteorological service.
New Zealand authorities have issued rare severe gust advisories - the most severe warning - in core zones encompassing Wellington and Canterbury.
People have been encouraged to avoid going outside, avoid travel, and make arrangements for additional utility disruptions.
Extensive Damage and Emergency Measures
The power cut appears to be affecting homes mostly in the South Island, although authorities say that power was being restored progressively.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, while trees and electricity poles have been brought down by the gusts.
In Wellington, a man was killed after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a female was blown onto moving cars on a thoroughfare by a powerful blast, in a event that was captured in a widely shared car camera footage.
Air travel to and from the city have been suspended because of the winds, while various routes and public facilities are not operating.
Simultaneously Canterbury officials have issued a emergency situation, to assist disaster response efforts.
Strike Action Alongside Severe Conditions
The powerful gales on this day occur while tens of thousands of educators, medical professionals and government employees take part in what has been termed a "major walkout", demanding improved salaries and workplace environments.
Yet the intense climate has compelled them to alter certain arrangements, with various open-air gatherings moved indoors or called off.
Similar gusts are also sweeping the nearby nation, bringing a period of extreme heat to the nation's interior regions.
Agencies have issued burning restrictions for concern about wildfires.