Intense gales hitting velocities of up to 155km/h (96mph) have caused around 90,000 households lacking electricity and forced authorities to call off over 100 flights, according to domestic outlets.
The gales are affecting the entire southern region and southern sections of the North Island, per the weather forecasting body.
The nation's agencies have announced uncommon high-level wind alerts - the most severe warning - in key areas including these major districts.
Locals have been urged to remain inside, stay off roads, and prepare for additional electricity and network failures.
Broad Destruction and Crisis Response
The power cut seems to be impacting homes mostly in the South Island, while officials state that power was being slowly brought back.
Regional news have reported that in various locations homes have lost their roofs, and power lines and trees have been toppled by the gales.
Across Wellington, a individual was lost his life after being impacted by a wooden fragment at a popular trail walking spot on Tuesday.
Additionally in the city, a female was pushed toward oncoming traffic on a street by a strong gust of wind, in a event that was filmed in a popular vehicle recording.
Flights to and from the city have been suspended because of the gusts, while certain highways and community centers are also closed.
At the same time authorities in Canterbury have issued a emergency situation, to assist disaster response efforts.
Strike Action Alongside Severe Weather
These intense gusts on Thursday occur while tens of thousands of teachers, doctors and other public workers are participating in what has been termed a "mega strike", requesting higher wages and enhanced employment terms.
But the extreme weather has compelled them to modify some of their plans, with some outdoor rallies moved indoors or cancelled.
Comparable winds are also sweeping the nearby nation, causing a period of extreme heat to the nation's interior regions.
Officials have declared flame prohibitions for apprehension regarding wildfires.