Powerful winds attaining velocities of up to 155km/h (96mph) have caused around 90,000 properties experiencing outages and forced authorities to cancel in excess of 100 aircraft departures, based on local media.
The winds are affecting the whole South Island and southern sections of the North Island, according to the national weather agency.
The nation's agencies have issued rare severe gust advisories - the highest alert level - in key areas encompassing these major districts.
People have been advised to remain inside, refrain from journeys, and get ready for additional utility disruptions.
Widespread Impact and Crisis Measures
The electricity loss appears to be affecting residences mainly in the southern region, though officials report that power was being slowly brought back.
Domestic outlets have stated that in certain areas roofs have been ripped off houses, while utility poles and vegetation have been toppled by the winds.
Across Wellington, a person was lost his life after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a individual was pushed toward oncoming traffic on a street by a powerful blast, in a moment that was filmed in a viral dashcam video.
Flights to and from the metropolis have been cancelled as a result of the weather, while some roads and libraries are also closed.
Meanwhile authorities in Canterbury have issued a state of emergency, to facilitate disaster response efforts.
Labor Protests During Severe Weather
The powerful gales on Thursday coincide with numerous of educators, medical professionals and government employees are engaged in what has been called a "mega strike", demanding improved salaries and workplace environments.
But the intense climate has forced them to modify various scheduled activities, with several external protests moved indoors or called off.
Similar gusts are also sweeping Australia, bringing a period of extreme heat to the remote areas.
Authorities have announced flame prohibitions for fear of bushfires.
