Powerful gusts hitting velocities of as high as 155km/h (96mph) have caused around 90,000 homes without power and compelled agencies to call off in excess of 100 flights, based on domestic outlets.
The gales are impacting the entire southern region and southern sections of the northern region, according to the national weather agency.
New Zealand authorities have released uncommon high-level wind alerts - the highest alert level - in core zones encompassing Wellington and Canterbury.
Residents have been encouraged to avoid going outside, stay off roads, and get ready for additional electricity and network failures.
Widespread Destruction and Emergency Measures
The power cut seems to be impacting homes predominantly in the South Island, although agencies report that energy was being restored progressively.
Regional news have indicated that in some places homes have lost their roofs, while utility poles and vegetation have been brought down by the gales.
Across Wellington, a individual was fatally injured after being struck by a tree branch at a well-known hiking path on Tuesday.
Additionally in the city, a individual was blown onto moving cars on a thoroughfare by a powerful blast, in a incident that was recorded in a viral dashcam video.
Air travel in and out of the metropolis have been cancelled due to the weather, whereas some roads and libraries are shut down.
Simultaneously local leaders have declared a crisis declaration, to assist disaster response efforts.
Strike Action Alongside Severe Weather
These intense gusts on Thursday coincide with tens of thousands of teachers, doctors and other public workers take part in what has been termed a "significant labor action", requesting better pay and working conditions.
But the severe conditions has compelled them to change some of their plans, with some outdoor rallies relocated inside or called off.
Similar gusts are also sweeping the nearby nation, bringing a heatwave to the country's outback.
Officials have issued flame prohibitions for apprehension regarding forest fires.
