Severe gusts hitting velocities of up to 155km/h (96mph) have resulted in nearly 90,000 properties without power and compelled authorities to call off in excess of 100 air travel services, according to local media.
The gales are influencing the whole South Island and southern sections of the North Island, according to the weather forecasting body.
New Zealand authorities have announced rare high-level wind alerts - the top caution category - in key areas encompassing Wellington and Canterbury.
Residents have been advised to stay indoors, stay off roads, and prepare for additional electricity and network failures.
Widespread Damage and Crisis Response
The electricity loss is primarily influencing residences mainly in the South Island, while agencies report that the electricity supply was being gradually reinstated.
Regional news have stated that in certain areas structures have suffered roof damage, whereas utility poles and vegetation have been toppled by the winds.
Across Wellington, a individual was lost his life after being struck by a falling limb at a popular trail walking spot on earlier this week.
Additionally in the city, a individual was blown onto approaching vehicles on a road by a intensive burst, in a moment that was recorded in a viral dashcam video.
Flights entering and leaving the urban area have been suspended due to the weather, while some roads and libraries are also closed.
Simultaneously local leaders have declared a emergency situation, to facilitate disaster response efforts.
Strike Action Amid Extreme Weather
The powerful gales on Thursday coincide with tens of thousands of teachers, doctors and other public workers take part in what has been called a "major walkout", requesting improved salaries and workplace environments.
However the severe conditions has pressured them to change certain arrangements, with various open-air gatherings relocated inside or cancelled.
Like conditions are also sweeping the neighboring country, bringing a high-temperature event to the nation's interior regions.
Officials have announced flame prohibitions for fear of forest fires.
