Intense gales attaining speeds of up to 155km/h (96mph) have resulted in approximately 90,000 properties without power and forced agencies to halt more than 100 flights, based on local media.
The gales are affecting the complete South Island and southern parts of the North Island, according to the national weather agency.
The nation's agencies have announced infrequent high-level wind alerts - the top caution category - in core zones such as Canterbury and Wellington.
Residents have been advised to avoid going outside, avoid travel, and prepare for further power and communication outages.
Broad Damage and Emergency Response
This outage appears to be affecting residences predominantly in the South Island, though officials report that energy was being slowly brought back.
Domestic outlets have reported that in various locations structures have suffered roof damage, and power lines and trees have been knocked down by the winds.
In Wellington, a person was lost his life after being hit by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a female was swept into moving cars on a road by a strong gust of wind, in a incident that was captured in a popular vehicle recording.
Aircraft services entering and leaving the metropolis have been halted due to the weather, and certain highways and community centers are also closed.
At the same time local leaders have declared a emergency situation, to assist recovery activities.
Strike Action Amid Harsh Conditions
The wild winds on Thursday occur while tens of thousands of teachers, doctors and other public workers are participating in what has been called a "major walkout", requesting improved salaries and workplace environments.
However the intense climate has compelled them to alter certain arrangements, with various open-air gatherings moved indoors or abandoned.
Comparable winds are also sweeping Australia, ushering in a high-temperature event to the country's outback.
Authorities have issued burning restrictions for fear of bushfires.
