Powerful winds attaining velocities of approximately 155km/h (96mph) have caused around 90,000 households without power and led officials to cancel more than 100 aircraft departures, based on local media.
The winds are impacting the complete South Island and lower areas of the North Island, according to the national weather agency.
New Zealand authorities have released infrequent severe gust advisories - the top caution category - in central regions including Wellington and Canterbury.
Residents have been encouraged to remain inside, stay off roads, and get ready for more power and communication outages.
Extensive Damage and Crisis Measures
The power cut appears to be affecting households predominantly in the South Island, while officials say that the electricity supply was being slowly brought back.
Regional news have reported that in various locations roofs have been ripped off houses, while utility poles and vegetation have been toppled by the gales.
In Wellington, a man was killed after being hit by a wooden fragment at a popular trail walking spot on earlier this week.
Meanwhile in Wellington, a individual was pushed toward oncoming traffic on a thoroughfare by a strong gust of wind, in a moment that was filmed in a widely shared car camera footage.
Air travel to and from the urban area have been suspended because of the gusts, while some roads and libraries are also closed.
At the same time Canterbury officials have issued a state of emergency, to facilitate recovery activities.
Labor Protests Amid Extreme Weather
The wild winds on this day coincide with tens of thousands of teachers, doctors and other public workers are engaged in what has been termed a "major walkout", demanding better pay and working conditions.
However the intense climate has compelled them to change some of their plans, with several external protests relocated inside or abandoned.
Like conditions are impacting Australia, ushering in a period of extreme heat to the remote areas.
Officials have announced burning restrictions for apprehension regarding forest fires.