Powerful winds hitting velocities of as high as 155km/h (96mph) have caused around 90,000 homes experiencing outages and compelled officials to halt more than 100 aircraft departures, as reported by local media.
The winds are impacting the whole southern region and southern parts of the North Island, according to the national weather agency.
New Zealand authorities have issued uncommon severe gust advisories - the highest alert level - in core zones including Canterbury and Wellington.
People have been advised to stay indoors, stay off roads, and make arrangements for further electricity and network failures.
Broad Damage and Crisis Measures
The power cut is primarily influencing homes mainly in the South Island, while authorities report that power was being slowly brought back.
Regional news have reported that in some places homes have lost their roofs, whereas power lines and trees have been toppled by the gusts.
Across Wellington, a individual was lost his life after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a woman was pushed toward moving cars on a street by a strong gust of wind, in a moment that was recorded in a widely shared car camera footage.
Air travel to and from the metropolis have been suspended due to the gusts, whereas various routes and public facilities are shut down.
At the same time local leaders have announced a crisis declaration, to support disaster response efforts.
Labor Protests Alongside Harsh Conditions
The powerful gales on Thursday occur while many of teachers, doctors and other public workers are participating in what has been termed a "significant labor action", requesting improved salaries and workplace environments.
But the severe conditions has compelled them to change certain arrangements, with several external protests moved indoors or cancelled.
Comparable winds are also sweeping Australia, causing a period of extreme heat to the remote areas.
Officials have announced fire bans for apprehension regarding forest fires.
