Severe winds reaching velocities of approximately 155km/h (96mph) have left approximately 90,000 households lacking electricity and forced authorities to call off in excess of 100 flights, according to regional news sources.
The gales are impacting the entire South Island and southern parts of the northern region, according to the weather forecasting body.
The nation's agencies have issued uncommon severe gust advisories - the top caution category - in key areas encompassing Wellington and Canterbury.
Locals have been encouraged to avoid going outside, refrain from journeys, and get ready for further utility disruptions.
Broad Destruction and Crisis Measures
The electricity loss is primarily influencing homes mostly in the South Island, while authorities state that the electricity supply was being restored progressively.
Regional news have stated that in some places roofs have been ripped off houses, while utility poles and vegetation have been knocked down by the winds.
In Wellington, a man was lost his life after being impacted by a wooden fragment at a frequent walking route on Tuesday.
Also in the capital, a woman was pushed toward approaching vehicles on a street by a intensive burst, in a moment that was recorded in a widely shared car camera footage.
Air travel in and out of the metropolis have been cancelled because of the weather, while some roads and libraries are shut down.
Meanwhile authorities in Canterbury have declared a emergency situation, to assist disaster response efforts.
Strike Action Alongside Severe Weather
These intense gusts on Thursday come as tens of thousands of school staff, physicians and civil servants are participating in what has been called a "mega strike", calling for improved salaries and workplace environments.
But the extreme weather has pressured them to alter various scheduled activities, with various open-air gatherings moved indoors or abandoned.
Similar gusts are affecting the nearby nation, ushering in a period of extreme heat to the remote areas.
Officials have declared fire bans for apprehension regarding forest fires.