Intense gales reaching speeds of up to 155km/h (96mph) have caused nearly 90,000 properties lacking electricity and led authorities to call off over 100 air travel services, according to regional news sources.
The gales are impacting the entire southern region and southern parts of the North Island, according to the weather forecasting body.
The nation's agencies have announced infrequent high-level wind alerts - the highest alert level - in central regions encompassing Wellington and Canterbury.
Locals have been urged to remain inside, refrain from journeys, and prepare for more power and communication outages.
This outage appears to be affecting homes predominantly in the South Island, though agencies state that power was being gradually reinstated.
Regional news have reported 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 person was fatally injured after being impacted by a wooden fragment at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a woman was pushed toward moving cars on a road by a powerful blast, in a event that was recorded in a popular vehicle recording.
Aircraft services in and out of the urban area have been cancelled as a result of the weather, and certain highways and community centers are not operating.
Meanwhile authorities in Canterbury have announced a state of emergency, to assist recovery activities.
The wild winds on this day coincide with many of educators, medical professionals and government employees are engaged in what has been described as a "major walkout", demanding improved salaries and workplace environments.
But the intense climate has pressured them to alter some of their plans, with some outdoor rallies moved indoors or called off.
Like conditions are affecting the neighboring country, ushering in a high-temperature event to the country's outback.
Authorities have declared flame prohibitions for concern about forest fires.
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