Intense gales attaining speeds of up to 155km/h (96mph) have left around 90,000 households lacking electricity and compelled authorities to call off more than 100 flights, based on domestic outlets.
The winds are impacting the complete South Island and lower areas of the North Island, as stated by the weather forecasting body.
New Zealand authorities have issued rare red wind warnings - the highest alert level - in core zones such as Canterbury and Wellington.
Residents have been urged to stay indoors, refrain from journeys, and get ready for more power and communication outages.
Broad Destruction and Crisis Response
This outage is primarily influencing homes mainly in the South Island, although agencies state that energy was being slowly brought back.
Domestic outlets have indicated that in certain areas roofs have been ripped off houses, whereas power lines and trees have been toppled by the gusts.
Across Wellington, a individual was lost his life after being struck by a falling limb at a frequent walking route on earlier this week.
Meanwhile in Wellington, a woman was swept into moving cars on a street by a intensive burst, in a incident that was filmed in a viral dashcam video.
Flights entering and leaving the city have been halted because of the gusts, whereas various routes and public facilities are shut down.
At the same time local leaders have announced a crisis declaration, to support emergency management operations.
Labor Protests Alongside Severe Conditions
These intense gusts on Thursday coincide with many of teachers, doctors and other public workers are engaged in what has been called a "significant labor action", requesting better pay and working conditions.
But the intense climate has forced them to alter certain arrangements, with several external protests relocated inside or abandoned.
Like conditions are impacting the neighboring country, causing a period of extreme heat to the country's outback.
Agencies have issued fire bans for concern about bushfires.