Severe gusts reaching speeds of approximately 155km/h (96mph) have left around 90,000 homes without power and forced authorities to halt in excess of 100 aircraft departures, according to domestic outlets.
The gales are influencing the whole southern region and southern parts of the North Island, according to the country's meteorological service.
The nation's agencies have released rare severe gust advisories - the top caution category - in core zones encompassing Wellington and Canterbury.
People have been urged to remain inside, refrain from journeys, and prepare for further power and communication outages.
Broad Destruction and Emergency Measures
The power cut is primarily influencing residences predominantly in the southern region, while officials say that the electricity supply was being restored progressively.
Regional news have reported that in various locations homes have lost their roofs, whereas power lines and trees have been brought down by the gusts.
Across Wellington, a person was lost his life after being struck by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was blown onto approaching vehicles on a street by a intensive burst, in a incident that was filmed in a popular vehicle recording.
Flights to and from the urban area have been cancelled because of the gusts, while various routes and public facilities are also closed.
At the same time local leaders have issued a emergency situation, to assist emergency management operations.
Strike Action Amid Extreme Conditions
The wild winds on Thursday come as numerous of educators, medical professionals and government employees take part in what has been termed a "mega strike", requesting higher wages and enhanced employment terms.
But the intense climate has pressured them to alter certain arrangements, with various open-air gatherings shifted to interior venues or abandoned.
Similar gusts are impacting the neighboring country, ushering in a heatwave to the nation's interior regions.
Officials have announced fire bans for fear of bushfires.
