Intense gales hitting speeds of approximately 155km/h (96mph) have resulted in nearly 90,000 homes experiencing outages and led officials to call off in excess of 100 flights, according to domestic outlets.
The gales are influencing the complete South Island and southern parts of the North Island, according to the country's meteorological service.
Officials in New Zealand have issued infrequent severe gust advisories - the most severe warning - in core zones including these major districts.
People have been urged to avoid going outside, stay off roads, and get ready for additional power and communication outages.
Widespread Damage and Crisis Response
The electricity loss appears to be affecting residences mostly in the southern region, while authorities report that the electricity supply was being slowly brought back.
Local media have stated that in certain areas roofs have been ripped off houses, and utility poles and vegetation have been brought down by the winds.
In Wellington, a man was lost his life after being struck by a tree branch at a popular trail walking spot on Tuesday.
Also in the capital, a woman was swept into approaching vehicles on a thoroughfare by a strong gust of wind, in a incident that was recorded in a widely shared car camera footage.
Air travel in and out of the city have been suspended as a result of the weather, and some roads and libraries are also closed.
At the same time local leaders have declared a emergency situation, to assist disaster response efforts.
Labor Protests Amid Severe Weather
The powerful gales on Thursday coincide with many of educators, medical professionals and government employees are engaged in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
But the intense climate has pressured them to modify some of their plans, with some outdoor rallies moved indoors or abandoned.
Like conditions are affecting the nearby nation, causing a heatwave to the remote areas.
Agencies have announced fire bans for concern about bushfires.
