Powerful winds reaching velocities of up to 155km/h (96mph) have left around 90,000 households lacking electricity and led officials to cancel in excess of 100 air travel services, based on domestic outlets.
The winds are affecting the entire South Island and southern parts of the North Island, according to the weather forecasting body.
Officials in New Zealand have announced uncommon red wind warnings - the most severe warning - in key areas encompassing these major districts.
People have been advised to stay indoors, avoid travel, and get ready for more electricity and network failures.
Widespread Impact and Crisis Response
The power cut appears to be affecting homes mainly in the South Island, although authorities state that energy was being gradually reinstated.
Regional news have indicated that in various locations structures have suffered roof damage, whereas trees and electricity poles have been knocked down by the gusts.
Within the capital, a man was killed after being impacted by a falling limb at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was pushed toward moving cars on a street by a strong gust of wind, in a incident that was filmed in a viral dashcam video.
Air travel to and from the metropolis have been suspended because of the winds, and certain highways and community centers are shut down.
At the same time Canterbury officials have declared a emergency situation, to assist disaster response efforts.
Labor Protests Alongside Extreme Weather
The powerful gales on Thursday coincide with many of school staff, physicians and civil servants take part in what has been termed a "mega strike", requesting better pay and working conditions.
Yet the intense climate has pressured them to change certain arrangements, with some outdoor rallies moved indoors or abandoned.
Similar gusts are impacting the neighboring country, ushering in a period of extreme heat to the nation's interior regions.
Agencies have announced fire bans for apprehension regarding wildfires.
