Intense gales reaching velocities of up to 155km/h (96mph) have left nearly 90,000 properties without power and compelled authorities to halt more than 100 air travel services, according to local media.
The winds are impacting the entire southern region and southern parts of the northern region, according to the weather forecasting body.
New Zealand authorities have announced uncommon severe gust advisories - the most severe warning - in key areas encompassing Wellington and Canterbury.
People have been encouraged to remain inside, refrain from journeys, and make arrangements for further power and communication outages.
Extensive Destruction and Crisis Measures
The power cut appears to be affecting households predominantly in the southern region, while authorities say that the electricity supply was being restored progressively.
Domestic outlets have reported that in some places roofs have been ripped off houses, and utility poles and vegetation have been knocked down by the gusts.
Within the capital, a person was lost his life after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Additionally in the city, a individual was pushed toward approaching vehicles on a street by a strong gust of wind, in a incident that was recorded in a viral dashcam video.
Air travel to and from the urban area have been cancelled because of the weather, whereas various routes and public facilities are shut down.
Meanwhile Canterbury officials have declared a crisis declaration, to facilitate recovery activities.
Strike Action Alongside Extreme Conditions
The wild winds on today coincide with many of teachers, doctors and other public workers are participating in what has been called a "mega strike", requesting improved salaries and workplace environments.
Yet the extreme weather has pressured them to change various scheduled activities, with some outdoor rallies shifted to interior venues or called off.
Similar gusts are impacting the nearby nation, ushering in a heatwave to the remote areas.
Agencies have issued flame prohibitions for fear of bushfires.