Powerful winds hitting velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties without power and forced officials to halt in excess of 100 air travel services, based on domestic outlets.
The winds are influencing the complete South Island and lower areas of the North Island, per the weather forecasting body.
The nation's agencies have announced infrequent high-level wind alerts - the top caution category - in key areas encompassing Wellington and Canterbury.
Residents have been urged to stay indoors, avoid travel, and make arrangements for further electricity and network failures.
Widespread Impact and Crisis Measures
This outage seems to be impacting households mainly in the southern region, although officials state that energy was being slowly brought back.
Local media have indicated that in certain areas structures have suffered roof damage, and utility poles and vegetation have been toppled by the winds.
In Wellington, a man was killed after being struck by a falling limb at a popular trail walking spot on Tuesday.
Meanwhile in Wellington, a woman was blown onto oncoming traffic on a thoroughfare by a strong gust of wind, in a moment that was captured in a widely shared car camera footage.
Flights in and out of the metropolis have been cancelled due to the winds, whereas certain highways and community centers are shut down.
Meanwhile local leaders have declared a emergency situation, to facilitate recovery activities.
Strike Action Alongside Severe Conditions
These intense gusts on this day come as tens of thousands of school staff, physicians and civil servants are engaged in what has been called a "significant labor action", requesting better pay and working conditions.
However the extreme weather has compelled them to alter some of their plans, with several external protests moved indoors or cancelled.
Like conditions are also sweeping the nearby nation, ushering in a heatwave to the remote areas.
Authorities have issued flame prohibitions for concern about bushfires.