Powerful gales attaining velocities of approximately 155km/h (96mph) have left around 90,000 homes experiencing outages and compelled authorities to cancel over 100 flights, according to regional news sources.
The gales are influencing the whole South Island and southern sections of the North Island, as stated by the national weather agency.
New Zealand authorities have issued rare red wind warnings - the highest alert level - in key areas such as these major districts.
People have been encouraged to remain inside, stay off roads, and make arrangements for further power and communication outages.
The electricity loss seems to be impacting households predominantly in the southern region, though authorities state that energy was being slowly brought back.
Regional news have reported that in some places structures have suffered roof damage, whereas power lines and trees have been knocked down by the gales.
Across Wellington, a man was lost his life after being struck by a tree branch at a well-known hiking path on earlier this week.
Also in the capital, a individual was swept into moving cars on a road by a powerful blast, in a moment that was recorded in a widely shared car camera footage.
Air travel to and from the city have been cancelled due to the winds, and some roads and libraries are not operating.
At the same time Canterbury officials have declared a crisis declaration, to assist recovery activities.
The wild winds on Thursday coincide with tens of thousands of school staff, physicians and civil servants are engaged in what has been called a "significant labor action", requesting higher wages and enhanced employment terms.
However the severe conditions has compelled them to change various scheduled activities, with various open-air gatherings shifted to interior venues or cancelled.
Like conditions are affecting the nearby nation, causing a high-temperature event to the country's outback.
Authorities have declared fire bans for apprehension regarding wildfires.
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