Powerful gales reaching velocities of as high as 155km/h (96mph) have resulted in nearly 90,000 properties without power and forced agencies to cancel in excess of 100 aircraft departures, based on local media.
The winds are influencing the whole South Island and southern sections of the northern region, according to the weather forecasting body.
The nation's agencies have announced uncommon red wind warnings - the most severe warning - in key areas encompassing Canterbury and Wellington.
Locals have been urged to stay indoors, refrain from journeys, and make arrangements for additional power and communication outages.
Extensive Damage and Crisis Response
The electricity loss seems to be impacting homes mostly in the South Island, while officials report that energy was being restored progressively.
Local media have stated that in various locations roofs have been ripped off houses, and power lines and trees have been knocked down by the gusts.
Within the capital, a man was fatally injured after being hit by a wooden fragment at a frequent walking route on earlier this week.
Additionally in the city, a female was swept into moving cars on a street by a powerful blast, in a incident that was filmed in a viral dashcam video.
Air travel to and from the urban area have been cancelled because of the gusts, and certain highways and community centers are not operating.
Meanwhile local leaders have declared a crisis declaration, to assist disaster response efforts.
Strike Action Alongside Severe Conditions
The powerful gales on this day come as many of educators, medical professionals and government employees are participating in what has been termed a "major walkout", requesting better pay and working conditions.
Yet the severe conditions has compelled them to modify some of their plans, with various open-air gatherings shifted to interior venues or called off.
Like conditions are affecting Australia, bringing a heatwave to the remote areas.
Agencies have announced fire bans for apprehension regarding bushfires.