Intense gales reaching speeds of as high as 155km/h (96mph) have resulted in nearly 90,000 households lacking electricity and forced agencies to cancel more than 100 air travel services, based on domestic outlets.
The gales are impacting the whole South Island and lower areas of the northern region, according to the country's meteorological service.
The nation's agencies have issued uncommon red wind warnings - the top caution category - in key areas including Wellington and Canterbury.
Residents have been advised to remain inside, avoid travel, and prepare for additional power and communication outages.
Widespread Destruction and Emergency Measures
The power cut is primarily influencing homes predominantly in the South Island, though officials say that the electricity supply was being gradually reinstated.
Domestic outlets have indicated that in various locations roofs have been ripped off houses, and trees and electricity poles have been toppled by the winds.
Across Wellington, a individual was killed after being struck by a falling limb at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was pushed toward approaching vehicles on a road by a powerful blast, in a incident that was captured in a widely shared car camera footage.
Flights to and from the city have been halted as a result of the winds, while certain highways and community centers are not operating.
Simultaneously local leaders have announced a emergency situation, to facilitate disaster response efforts.
Labor Protests During Severe Weather
The wild winds on this day coincide with tens of thousands of educators, medical professionals and government employees are participating in what has been called a "major walkout", demanding improved salaries and workplace environments.
Yet the intense climate has compelled them to change some of their plans, with several external protests moved indoors or called off.
Like conditions are affecting the nearby nation, bringing a heatwave to the country's outback.
Authorities have announced burning restrictions for fear of bushfires.
